Wohler | AMP2-DA | User guide | Wohler AMP2-DA User guide

AMPx-E8 Series
•
•
AMP1-E8DA
AMP2-E8DA
• AMP1-E8MDA-3G
• AMP2-E8MDA-3G
2RU, Dolby, Multi-Format, Analog/
Digital Audio Monitors
User Guide
Part Number 821016, Revision E
© 2011 Wohler Technologies, Inc. All rights reserved.
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Customer Support
Wohler Technologies, Inc.
31055 Huntwood Avenue
Hayward, CA 94544
www.wohler.com
Phone: 510-870-0810
FAX: 510-870-0811
US Toll Free: 1-888-596-4537
(1-888-5-WOHLER)
Web: www.wohler.com
Sales: sales@wohler.com
Support: support@wohler.com
Disclaimers
Even though Wohler Technologies, Inc. has tested its equipment and software, and reviewed
the documentation, Wohler Technologies, Inc. makes no warranty or representation, either
express or implied, with respect to software, documentation, their quality, performance,
merchantability, or fitness for a particular purpose.
Wohler Technologies, Inc. reserves the right to change or improve our products at any time and
without notice.
In no event will Wohler Technologies, Inc. be liable for direct, indirect, special, incidental, or
consequential damages resulting from any defect in the hardware, software, or its
documentation, even if advised of the possibility of such damages.
Some states do not allow the exclusion or limitation for incidental or consequential damages, so
the above exclusion or limitation may not apply to you.
Printing
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Other Technologies and Products
Dolby, Dolby Digital (AC-3), Dolby D, Dolby E and the Dolby logo are registered trademark of
Dolby Laboratories, Inc., a licenor of technology used in this product. For more information
concerning Dolby E, Dolby Digital, and Dolby Digital (AC-3), please contact Dolby
Laboratories directly at Phone: 415-558-0200, info@dolby.com, or
Dolby Laboratories, Inc., 100 Potrero Avenue, San Francisco, CA 94103
Microsoft Windows, and Internet Explorer are registered trademarks of Microsoft Corporation.
The Tascam trademark is owned by Teac, Inc.
Last Update
June 06, 2011
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Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Introduction .................................................................. ix
Overview................................................................. ix
Topics ..................................................................... ix
What’s New ....................................................................x
Functionality Enhancements .............................................x
3G...........................................................................x
Software Termination .................................................x
Rear Panel Connector Arrangements ........................... xi
Chapter 1. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction ...................................................................1
Overview..................................................................1
Topics ......................................................................1
Safety ...........................................................................2
Important Safety Instructions .....................................2
Safety Symbols .........................................................3
FCC Compliance ..............................................................3
Unpacking ......................................................................3
Installation Recommendations...........................................4
Mounting..................................................................4
Heat Dissipation ........................................................4
Sympathetic Vibration ................................................4
Mechanical Bracing ....................................................5
Audio Connections and Cable Recommendations ............5
Electrical Interference ................................................5
Power ......................................................................6
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Installation .................................................................... 6
Initial Setup ............................................................. 6
Power Up................................................................. 6
Chapter 2. System Overview . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction................................................................... 7
Overview ................................................................. 7
Topics ..................................................................... 7
Front Panel Controls........................................................ 8
Features and Simple Controls ..................................... 8
LCD Screen.............................................................10
User Interface .........................................................12
Multi-Mode Color Codes ......................................12
Menu Navigation ................................................13
Rear Panel Connectors ...................................................14
Input Connectors .....................................................14
Input Connectors .....................................................16
Output Connectors...................................................17
Programming and Remote Access Connectors ..............20
RS-232 Connectors ............................................20
Remote Connector .............................................20
Rotary Switches.......................................................21
Monitoring Inputs ..........................................................22
System Overview.....................................................22
Monitoring an Analog Input .......................................23
Monitoring an AES Input ...........................................23
Monitoring an SDI Input ...........................................24
Monitoring a Dolby Input ..........................................24
Monitoring Dolby in SDI............................................24
Channel Selection and Mixing .........................................25
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Chapter 3. Audio Configuration. . . . . . . . . . . . . . . . . . . . . 27
Introduction ................................................................. 27
Overview................................................................ 27
Topics .................................................................... 27
Analog Output Preference............................................... 28
Monitoring and Mixing Modes .......................................... 29
Arbitrary Mixing ...................................................... 29
Single .................................................................... 30
Pairs ...................................................................... 30
Downmix................................................................ 31
Muting the Speakers ...................................................... 33
Phase Correlation .......................................................... 34
SDI Inputs ................................................................... 35
Selecting SDI Groups and Subgroups ......................... 35
Dolby Decode Mode Disabled............................... 35
Dolby Decode Mode Enabled ............................... 36
Configuring for SDI Delay ........................................ 37
Selecting the Input Signal .............................................. 38
Setting the Monitor’s Startup Configuration....................... 39
Terminating/Unterminating Inputs ................................... 40
Chapter 4. Presets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Introduction ................................................................. 43
Overview................................................................ 43
Topics .................................................................... 43
What are Presets? ......................................................... 44
Methods of Accessing the Presets .................................... 44
Setup Menu ............................................................ 44
Preset Mode............................................................ 44
Enabling/Disabling Preset Mode ........................... 45
Recalling a Preset .............................................. 45
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Speaker Assign/Preset Buttons
(Presets 1 through 4 Only)........................................45
Saving a Preset .................................................46
Recalling a Preset ..............................................46
Overwriting a Preset...........................................46
Chapter 5. Dolby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Introduction..................................................................49
Overview ................................................................49
Topics ....................................................................49
Dolby Input Source Selection ..........................................50
Dolby Decoding .............................................................50
PCM.............................................................................51
Dolby Metadata .............................................................52
Chapter 6. Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Introduction..................................................................55
Overview ................................................................55
Topics ....................................................................55
Accessing Setup Mode....................................................56
Analog Output Preference Mode.......................................58
Recalling a Preset ..........................................................58
Saving a Preset .............................................................59
Creating a New Preset .............................................60
Overwriting an Existing Preset ...................................61
Preset Mode..................................................................63
Erasing a Preset ............................................................63
SDI Delay.....................................................................64
Startup ........................................................................65
Surround Gain ..............................................................65
Bitstream Detection .......................................................66
Phase Bits ....................................................................67
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Chapter 7. Features and Specifications. . . . . . . . . . . . . . . 69
Introduction ................................................................. 69
Overview................................................................ 69
Topics .................................................................... 69
Features ...................................................................... 70
Common Features ................................................... 70
Model Distinctions ................................................... 71
Specifications ............................................................... 71
Technical Functional Overview ......................................... 74
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Preface
Introduction
Overview
The preface lists the new features and functionality for this release.
Topics
Topics
What’s New
Page
x
Functionality Enhancements
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P r e f a ce
What’s New
What’s New
This release provides several changes and functionality enhancements:
• 3G functionality (now available in 1RU!)
• Signal termination moved to software control
• Phase Bits on page 67
• Bitstream Detection on page 66
Functionality Enhancements
3G
In adding the 3G functionality, we have also discontinued the MDAonly models as shown in the following table:
Old Version
AMP2-E8MDA (PN 8102-0020)
New Version Replacement
Suggestions
AMP1-E8MDA-3G (PN 8102-0070)
AMP2-E8MDA-3G (PN 8102-0080)
Moreover, we are replacing some other similar products as well.
Old Version
AMP2-E8DA (PN 8102-0010)
New Version Replacement
Suggestions
AMP1-E8DA (PN 8102-0060)
AMP2-E8DA (PN 8102-0130)
Software Termination
In this release, all terminations are no longer on the rear panel; they are
now controlled by the software. Refer to Terminating/Unterminating
Inputs on page 40 for details.
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Preface
Functionality Enhancements
Rear Panel Connector Arrangements
Note that in the process of redesigning the AMPx-E8 Series monitors,
we have rearranged the rear panels. Refer to Appendix A on page 79
for remapping information.
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P r e f a ce
Functionality Enhancements
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CHAPTER 1
Installation
Introduction
Overview
This chapter describes the front panel controls and the rear panel
connectors in detail. It also describes how to use the front panel user
interface for data display and system configuration. Configuration
procedures are covered in detail in Chapter 3 on page 27.
Topics
Topics
Introduction
Page
1
Safety
2
FCC Compliance
3
Unpacking
3
Installation Recommendations
4
Installation
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Safety
Safety
Important Safety Instructions
IMPORTANT:
1.
Read, keep, and follow all of these instructions; heed all warnings.
2.
Do not use this equipment near water, rain or moisture.
3.
Use only a dry cloth to clean the equipment.
4.
Do not block any ventilation openings. Install only in accordance
with the instructions in Installation Recommendations on page 4.
5.
Do not install near any heat source such as a radiator, heat register,
amplifier, or stove.
6.
Do not attempt to plug the unit into a two-blade outlet (with only
two prongs of equal width).
By design, these monitors will only plug into a three-prong outlet for
your safety. If the plug does not fit into your outlet, contact an
electrician to replace the obsolete outlet.
7.
Protect the power cord from being walked on or pinched,
particularly at plug’s source on the equipment and at the socket.
8.
Use only the attachments/accessories specified by the
manufacturer.
9.
Unplug the equipment during lightning storms or when unused
for long periods of time.
10. Use of a cart is neither recommended nor approved by Wohler.
11. Refer all servicing to qualified service personnel. Servicing will be
required under all of the following conditions:
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The equipment has been damaged in any way, such as when
the power-supply cord or plug is damaged.
•
Objects have fallen onto the equipment; or the equipment has
been exposed to rain or moisture, or liquid has been spilled
onto the equipment.
•
The equipment does not operate normally.
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F C C C o m p li a n c e
•
The equipment has been dropped.
Safety Symbols
WARNING:
The symbol to the left is a warning to be careful of electric shock. Do
not open the top cover with the power cord attached.
FCC Compliance
This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Unpacking
Unpack the AMPx-E8 Series monitor and inspect for any apparent physical
damage that may have occurred in transit. If the unit has been damaged,
contact Wohler customer support for assistance. (Wohler’s contact
information is on page ii of this document.)
In addition to the monitor, the package should contain:
• A CDROM containing the product’s user guide,
• A power cord, and
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• A warranty card
Note:
We recommend you retain the shipping carton for future
use.
Installation Recommendations
Mounting
The unit is designed to install into a standard 19" rack mounted at ear
level for best high frequency response and visual observation of the
monitor screen. Please adhere to the following clearances:
Clearance
24”
3”
2”
1.75”
0”
Surface
Front
Rear
Sides
Top and Bottom (if either radiates heat)
Top and Bottom (if no heat)
Heat Dissipation
The ambient temperature inside the mounting enclosure should not
exceed 40° Celsius (104° Fahrenheit). Adjacent devices can be rack
mounted (or stacked) in proximity to the unit if this temperature is not
exceeded. Otherwise, allow a 1RU (1.75”/44.45mm) space above and
below the unit for air circulation.
Important:
To reduce noise, the monitor does not have any fans. As a result, the
heat generated by the class D power amplifiers, power supplies, and
other components is vented by slots in the side of the unit. Therefore,
as a safety precaution, you must allow proper ventilation on both sides
of the unit.
Sympathetic Vibration
Sympathetic vibration from other equipment (cables, etc.,) in the rack
may be serious enough to interfere with the unit’s sound quality. The
use of thin card stock and/or felt or foam weather-stripping type
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I n s ta l la t i o n R e c o m me n d a t io n s
materials between adjacent vibrating surfaces, or tying up loose cables,
etc., may be required to stop vibrations external to the unit.
Mechanical Bracing
Even though the 2U models are fairly heavy, the chassis is securely
attached to the front panel. In addition, the chassis has mounting tabs
through which you attach it to the rack rail. This feature will reduce or
eliminate rear bracing requirements in many mobile/portable
applications. The weight of internal components is distributed fairly
evenly around the unit.
Audio Connections and Cable Recommendations
We recommend that you limit the length of the cables that you use for
feeding HD-SDI signals sources to the HD-SDI inputs of the AMPx-E8
Series units and that you use a Belden 1694A cable (or equivalent).
Note:
The connections of all DB-25 connectors are compatible with
Tascam DB-25 to XLR cable assemblies. Consult the factory
for availability. All rear panel connectors are female except
for the XLR connectors.
Table 1–1
Cable Length Limit Recommendations
Maximum Length
Meters
Feet
Signal Type
SD
HD
3G
300
150
22
984
492
75
Electrical Interference
Be careful to apply proper input termination settings and avoid
mismatched cable types and other similar causes of undesired
reflections in digital signal systems. If severe enough, such reflections
can result in corruption of the digital data stream. As with any audio
equipment, maximum immunity from electrical interference requires
the use of shielded cable; however, satisfactory results can sometimes
be obtained without it. The internal circuitry ground is connected to the
chassis.
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Power
The unit comes with a standard 24VDC/3.0 A internal power supply
and connects an A/C mains power source (65W, 100 to 240 VAC, 50/
60Hz) through the IEC connector provided on the rear panel of the unit.
When the mains plug or appliance coupler is used as the disconnect
device, the disconnect device should remain operable.
Installation
Initial Setup
1.
Carefully install the monitor into a standard 19”-rack.
2.
Connect all signal cables to and from associated equipment.
3.
Connect the power cord from the monitor to A/C mains.
Power Up
The AMPx-E8 Series monitors are factory-configured so that all settings
are non-volatile. When power to the unit is cycled (off/on), the unit will
restore itself so that each setting such as channel selection(s), input
type, and so on, are automatically restored to the unit’s previous
factory setting. However, you can custom configure the monitor to
automatically restore your configuration settings on power up. Refer to
Setup Menu on page 55 for details.
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CHAPTER 2
System Overview
Introduction
Overview
This chapter describes how to install the AMPx-E8 Series monitor into a
standard 19”-rack and how to connect the audio cables.
Topics
Topics
Introduction
Page
7
Front Panel Controls
8
Rear Panel Connectors
14
Monitoring Inputs
22
Channel Selection and Mixing
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Front Panel Controls
Front Panel Controls
Features and Simple Controls
Refer to the images in Figure 2–1 and Figure 2–2 on the next page.
• Speakers: The AMP2s features two mid-range speakers (left and
right) and one woofer speaker. The AMP1s have two woofers. All
models of the AMPx-X8 Series contain high performance
transducers driven by three power amplifiers. Two amplifier/
driver combinations handle midrange and high frequency
information in the left and right (stereo) speaker channels, while the
third channel reproduces and sums the left and right channel
information below the crossover point in the woofer (bass) speaker.
Note that the woofer channel is not a dedicated LFE (sub-woofer) or
center channel.
• Level Meters (1 through 8): Source channels 1 through 8 are
displayed through eight audio level meters (four on the left side;
four on the right side). These level meters, high-resolution LED bar
graph displays and feature a dynamic range of 66 dB with PPM dot
over VU bar ballistic characteristics.
• Headphones (1/4” Jack): Select the headphone audio sources as
you would for the internal speakers. When you plug in headphones
the speakers will mute.
• Volume (Rotary Knob): This control adjusts the loudness of the
audio reproduced by the internal speaker channels or connected
headphones.
• Balance (Rotary Knob): This control adjusts the volume balance
between the left and right speaker channels. Note that this control
attenuates the signal from the source, so that the left and right bass
frequencies (summed together and reproduced in the woofer
channel) will respond to balance adjustments in tandem with the
left and right speaker channels.
• Level Meter Brightness (Potentiometers, Left and Right): Use a
small slot screwdriver to adjust the brightness of the bar graph
meters using these two recessed trim pot controls. The left control
adjusts the brightness of the left four LED bar graphs and the right
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C h a p t e r 2 System Overview
Front Panel Controls
Figure 2–1
AMP1-E8 Series Front Panel
Speaker
Assign/
Presets Volume Headphones LCD Screen Brightness Balance
Left/Single/Up
Dolby/Enter
Right/Up/Escape
Metadata/Pairs/Down
Mute
Input/Downmix
Group/Setup
Phase/Function
Speakers
Figure 2–2
Speaker Assign
Level
Meters
AMP2-E8 Series Front Panel
Left/Single/Up Metadata/Pairs/Down
Headphones Volume Meters/Speaker Assign LEDs
LCD Screen
Speaker Assign/ Presets
Brightness (L)
Dolby/Enter Meters/Speaker Assign LEDs
Right/Escape
Balance
Brightness (R)
Mute
Phase/Function
Group/Setup
Input/Downmix
Speaker
Speakers
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Front Panel Controls
control adjusts the brightness of the right four bar graphs.
Clockwise rotation increases the brightness.
Note:
The AMP1s only have one brightness control.
• Speaker Assign LEDs (1 through 8, Left and Right): These LEDs
indicate the speaker mix of selected channels. The speaker assign
LEDs are located above each of the 53-segment bar graphs.
Note:
In the AMP1s, the speaker assign LEDs are the top
segment of the meters.
In addition, on the AMP1s, the top LED segment of each bar graph
serves as the speaker assign LED for the respective channel.
• Speaker Assign/Preset Buttons (Speaker Assign, 1 through 8;
Preset Buttons, 1 through 4): Pressing any of these buttons selects
the channels to be summed into either or both speaker channels, or
to create and recall presets when used in conjunction with the FN
button. Refer to Chapter 4 on page 43 for more information about
presets.
LCD Screen
The LCD screen displays various parameters and settings, and is also
used to configure/program the monitor. The features of the LCD
screen (shown in Figure 2–3 through Figure 2–6) include:
• Mix Status: Displayed on the top right and top left corners of the
LCD screen, the Mix Status indicates how the current input signal
is mixed to the internal speakers.
• Source Status: Displayed in the top center of the LCD screen, the
Source Status indicates the current signal type and current input
currently audible in the internal speakers. If a preset has been
recalled, this area displays the name of the preset until a monitoring
or input change is made.
• SDI Groups/Dolby Signal Type: Displayed in the bottom left and
bottom right corners of the LCD screen, these groups indicate the
SDI channels that are currently mixed to the internal speakers. In
the case when a Dolby signal is mixed to the internal speakers, the
bottom left corner will be blank and the bottom right corner will
display the Dolby logo, PCM, DAT, or --- (no input signal).
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C h a p t e r 2 System Overview
Front Panel Controls
• Input Lock Status (Digital Inputs Only): Displayed in the center of
bottom line, the Input Lock Status shows the lock status of the
selected digital input(s). If any input channel pairs are not locked,
then they will display as short dashes. Each dash (-) indicates a
position for displaying the channel pairs available for monitoring
from left to right: 1/2, 3/4, 5/6 and 7/8. The unit updates the Input
Lock Status whenever it detects a signal change.
See Figure 2–3 below through Figure 2–6 on page 12 for additional
examples.
Figure 2–3
Status Display Example: Standard Input
Source - SD-SDI Input 2
Mix Status
(Downmix 3)
SDI Group
(Group #1)
Source Status
(SD-SDI Input 2)
Mix Status
(Downmix 3)
DM3
SD.SDI2
DM3
GP1
1 3 5 7
2 4 6 8
GP2
SDI Group
(Group #2)
Input Lock Status
(Channels 1 through 8 Locked)
Figure 2–4
Status Display Example: Standard Input
Source - HD-SDI Input 1
Mix Status
(Custom)
MIX
SDI Group
(Group #3)
GP3
Source Status
(HD-SDI Input 1)
HD.SDI1
- -
5 7
6 8
Mix Status
(Custom)
MIX
GP4
SDI Group
(Group #4)
Input Lock Status
(Channels 1 through 4 Not Locked;
Channels 5 through 8 Locked)
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Front Panel Controls
Figure 2–5
Status Display Example: Dolby Input
Source - Bitstream 1
Program Status
(Program 1)
PG1
Figure 2–6
Source Status
(Bitstream 1
BSt1
Program Status
(Program 1)
PG1
E
Bitstream Type
(Dolby E)
Status Display Example: Dolby Input
Source - Bitstream 2
Program Status
(Program 1)
PG1
Source Status
(Bitstream 2)
BSt2
Program Status
(Program 1)
PG1
D
Bitstream Type
(Dolby D)
User Interface
Multi-Mode Color Codes
Most of the user interface buttons are multi-functional. They affect the
unit differently depending on whether they are used alone or in
combination with another button. The monitor’s front panels have
color-coded legends to help identify the different functions of each
button:
• White indicates normal operation.
Table 2–1
White Control Functionality
Button
Left
Right
MData
Input

12
821016:
Functionality
Displays the next channel to the left
Displays the next channel to the right
Selects Dolby metadata for display
Toggles between using the Dolby Decode mode
or not
Selects inputs for monitoring
Displays the phase correlation for the currentlymonitored input pairs
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Front Panel Controls
Table 2–1
White Control Functionality (Continued)
Button
Group
Mute
Functionality
Selects the channel groups and subgroups for an
SDI signal
Mutes the audio currently playing in the front
panel speakers
• Blue for functions controlled by the Fn button.
Table 2–2
Blue Control Functionality
Button
Fn + Single
Fn + Pairs
Fn + Downmix
Fn + Setup
Functionality
Selects single channel monitoring mode: one
channel per speaker, selected independently
Selects pair monitoring mode: one channel per
speaker, selected pair by pair
Selects downmix mode: one of several available
downmixes
Displays the Setup menu
• Yellow indicates the button functions for the Setup menu. Refer to
Chapter 6 on page 55 for more details about using the Setup menu
for system configuration.
Table 2–3
Yellow Control Functionality
Button


Esc
Enter
Functionality
Displays the previous menu item
Displays the next menu item
Returns to the previous menu and cancels
changes
Returns to the previous menu and saves changes
Menu Navigation
When making changes to the Setup menu, you will generally press the
Enter button to select menu options and settings, and press the Esc
(Escape) button to back out of the menu, setting, or display to return to
normal operation.
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R e a r P a n e l C o n n e ct o r s
Rear Panel Connectors
• Analog In (DB-25-F): This connector accepts balanced, low
impedance, line level analog signals. See Figure 2–7 below for pinout information.
Figure 2–7
Analog Input Connector Pin-Out
Input Connectors
• Power: Attach a standard IEC-320 power cord between this
connector and AC mains power.
• AES/PCM In (1 through 4, BNC-F): These connectors accept
unbalanced (75 ) PCM (AES/EBU) formatted signals. These inputs
appear as AES1 in the LCD screen.
If you are not connecting downstream equipment, then you should
terminate the selected input connector. Otherwise, unterminate
them.
• AES/PCM In (and Loop Out) (DB-25-F): This connector accepts
balanced (110 ) AES signals. Inputs are internally connected to the
loop-through outputs. These inputs are referred to as AES2 in the
LCD screen. If you are connecting downstream equipment to the
AES loop-through outputs of this connector, then you should
unterminate this connector. If you are not connecting downstream
equipment, then you should terminate them. Refer to Terminating/
Unterminating Inputs on page 40 for details.
Note:
14
821016:
The pin-out for this connector is compatible with
Tascam DB-25 to XLR cable assemblies. Contact your
Wohler sales representative for availability. (Wohler’s
contact information is on page ii of this document.)
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Rear Panel Connectors
Figure 2–8
The AMP1-E8MDA-3G Rear Panel
OPT 1
RS-232 A
Power
AES Out from SDI
RS-232 B
Reference
SDI In (1 & 2)
RS-232C
SDI Option 2
SDI Re-Clocked Out
Figure 2–9
Decoded Dolby E/AC-3 Out
(1 thru 4), Mix, and In (1 & 2)
AES Bal In & Loop Out
RS-232A
RS-232C
AES/PCM In (1 thru 4)
Analog In
Selected/Downmix
Analog Out (L&R)
The AMP2-E8MDA-3G Rear Panel
Remote
Balanced AES Out from SDI
Power
Metered Analog Out
Ref
SDI In (1 & 2)
Opt 1
SDI Re-Clocked Out
Opt 2
RS-232B
AES Bal In &
AES/PCM In (1 thru 4)
Loop Out Decoded Dolby E/AC-3 Out
(1 thru 4), Mix, and In (1 & 2)
Metered Analog Out
Analog In
Selected/Downmix
Analog Out (L&R)
Note that the DA models do not have SDI connectors.
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Input Connectors
• Power: Attach a standard IEC-320 power cord between this
connector and AC mains power.
• AES/PCM In (1 through 4, BNC-F): These connectors accept
unbalanced (75 ) PCM (AES/EBU) formatted signals. These inputs
appear as AES1 in the LCD screen.
If you are not connecting downstream equipment, then you should
terminate the selected input connector. Otherwise, unterminate
them.
• AES/PCM In (and Loop Out) (DB-25-F): This connector accepts
balanced (110 ) AES signals. Inputs are internally connected to the
loop-through outputs. These inputs are referred to as AES2 in the
LCD screen. If you are connecting downstream equipment to the
AES loop-through outputs of this connector, then you should
unterminate this connector. If you are not connecting downstream
equipment, then you should terminate them. Refer to Terminating/
Unterminating Inputs on page 40 for details.
Note:
The pin-out for this connector is compatible with
Tascam DB-25 to XLR cable assemblies. Contact your
Wohler sales representative for availability. (Wohler’s
contact information is on page ii of this document.)
Figure 2–10
AES/PCM Input and Loop-Through
DB-25 Pin-Out
• Dolby E/AC-3 In (1 and 2, BNC-F): These connectors accept Dolby
E, Dolby Digital (AC-3), or PCM (AES/EBU) formatted signals.
These inputs are selected when the LCD screen shows either BSt1
or BSt2. Select either BSt1 or BSt2 for decoding and monitoring
by using the Input button when the unit is in Dolby Decode Mode.
16
821016:
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C h a p t e r 2 System Overview
Rear Panel Connectors
If you are connecting downstream equipment to the AES loopthrough outputs of this connector, then you should unterminate this
connector. If you are not connecting downstream equipment, then
you should terminate the selected input connector. Refer to
Terminating/Unterminating Inputs on page 40 for details.
• 3G/HD/SD-SDI In (1 and 2, BNC-F): These inputs accept SDI video
signals for the 3G models.
Note:
The DA model does not feature SDI capability.
If Dolby E and Dolby D (AC-3) audio signals are encoded within an
SDI bitstream selected in Dolby Decode Mode, they will be deembedded and de-coded for monitoring through the unit and for
output through the Decoded Dolby E/AC-3 Out connectors. PCM
signals embedded within the SDI bitstream are also de-embedded
for monitoring through the unit. See Chapter 5: Dolby on page 49
for details.
Output Connectors
• Metered Analog (DB-25): This connector outputs the analog signal
that is displayed on the front panel level meters. The pin-out
information for this DB-25 is identical to that of the Analog Input
connector. See Figure 2–8 on page 15.
Note:
The Analog Output Preference (AOutputPref) entry
within the Setup Menu determines how this connector
outputs the speaker Assign when a DM1, DM2, or DM3
downmix selection is enabled. The default setting is
Downmix, which outputs the metered signal with
individual channel scaling (gain settings) intact as
determined by the selected downmix (DM1, DM2, or
DM3). If Discrete is selected, then all metered
channels are output from these connectors at unity gain.
See Analog Output Preference Mode on page 58 for
information on how to set this parameter.
• 3G/HD/SD-SDI Re-Clocked Out (BNC): This connector outputs a
re-clocked copy of the SDI signal fed to the SDI input connector
selected for monitoring. When an SDI input is not selected for
monitoring in the unit, SDI In 2 will be reclocked and connected to
this output by default.
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R e a r P a n e l C o n n e ct o r s
• AES Unbalanced Out from SDI (HD-15): This connector outputs
de-embedded audio. The last SDI input and group selection
determine which audio pairs are de-embedded on these 75 ,
unbalanced, AES outputs. No other monitoring function affects
these outputs. Embedded Dolby signals are presented here as
bitstreams, and are not decoded.
The pinout of this connector is the same as that for a standard VGA
cable. VGA cables may be used to break out the HD-15 connectors
into separate BNCs.
Note:
The DA model does not feature SDI capability.
Table 2–4
VGA Connector Pin-Out
SDI Channels
1 and 2
3 and 4
5 and 6
7 and 8
Not Used
Red
Green
Blue
Grey/H-Sync.
Black/V-Sync.
Figure 2–11
Note:
Cable Color/Function
AES Unbalanced Out from SDI
HD-15 Pin-Out
You must specify either the balanced (DB-25) or the default
unbalanced (HD-15) output connector at the time you place
your order.
• (Optional) Balanced AES Output from SDI Input (DB-25): This
connector outputs de-embedded audio. The last SDI input and
group selection determine which audio pairs are de-embedded on
these 110 , unbalanced, AES outputs. No other monitoring
function affects these outputs. Embedded Dolby signals are
presented here as bitstreams, and are not decoded.
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C h a p t e r 2 System Overview
Rear Panel Connectors
The pin-out for this connector is compatible with Tascam DB-25 to
XLR cable assemblies. Contact your Wohler sales representative for
availability. (Wohler’s contact information is on page ii of this
document.).
Figure 2–12
AES Balanced Out from SDI
DB-25 Pin-Out
• Selected Downmix/Analog Out (Left and Right, XLR-M): These
connectors are balanced analog outputs of the speaker assign (or
downmix) source as selected for the left and right speaker channels.
See the pin-out diagram in Figure 2–13 on page 19.
Figure 2–13
XLR-M Pin-Out
• AES Bal In/Loop Out (DB-25): This connector contains both inputs
and looped outputs. Refer to AES/PCM In (and Loop Out), page 16
for a full description.
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C h a p t e r 2 S y s te m O v e rv i e w
R e a r P a n e l C o n n e ct o r s
Programming and Remote Access Connectors
RS-232 Connectors
Figure 2–14
RS-232 Pin-Out
• RS-232 A (DB-9): This connector is used for downloading
programming, setup, and diagnostic information into and out of the
main board.
• RS-232 B (DB-9): This connector is used for downloading
programming, setup, and diagnostic information into and out of the
Dolby E card.
• RS-232 C (DB-9) (not available on the DA models): This connector
is used for downloading programming, setup, and diagnostic
information into and out of the 3G card.
Remote Connector
Remote (DB-9) (2RU models only): When equipped with the optional
RC4-4 interface board and configured in software, this connector (not
RS-232) provides limited remote control and status reporting with GPI/
O signals: four inputs (Controls 1 through 4) and four outputs (Status 1
through 4) as shown in Table 2–5 below.
Table 2–5
RC4-4 Connector Interface Pin Out
Pin
1
2
3
4
5
6
7
20
821016:
Description
Type Select 1, Status Output
Type Select 0, Status Output
Common, Ground
Type Select 0, Control Input
Channel Select 0, Status Output
Channel Select 1, Status Output
Channel Select 0, Control Input
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Rear Panel Connectors
Table 2–5
Pin
Description
8
9
Note:
RC4-4 Connector Interface Pin Out
Channel Select 1, Control Input
Type Select 1, Control Input
For more complete information about the functionality of
the Remote connector, contact your Wohler technical
support representative and ask for the documents with part
numbers 824016 and 824017.
Rotary Switches
• OPT 1 (10-Position Rotary Switch): This recessed 10-position rotary
switch allows for standard operation and software upgrades. Refer
to Table 2–6 for the position values.
Table 2–6
Position
0 thru 7
8 thru 9
OPT 1 Option Settings and Descriptions
Setting Description
Operational Mode (Default=1)
Software Upgrade
• OPT2 (10-Position Rotary Switch): This recessed 10-position rotary
switch that is reserved for future use and should be left at the
factory position of 1.
Table 2–7
SDI Option Settings and Descriptions
Position
Setting Description
0
1
2 thru 8
9
Not Used - Reserved for Future Use
Operational Mode
Not Used - Reserved for Future Use
Software Upgrade
• REF (10-Position Rotary Switch): This recessed 10-position rotary
switch allows you to set the analog and digital reference levels for
the unit’s level meters, as well as to select the software upgrade
function. In Table 2–8 below, the analog reference level (analog, left
column) is the analog input level needed to activate the bar graph
segment at the associated digital reference level (digital, right
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C h a p t e r 2 S y s te m O v e rv i e w
M o n it o r in g I n p u ts
column) value. This is usually the location on the bar graph level
meter where the color transitions from green to amber.
Table 2–8
Position
Reference and OPT2 Setting Values and
Definitions
Reference Level Function
Analog (dBu)
Digital (dBFS)
0
1
2
3
4
5
6
7
8
9
Example:
+8
+4
-20
0
0
-18
+6
-9
+4
-18
Custom Settings for Alternate Scales
Not Used
For software Upgrades Only
Choosing position 2 (0 dBu = -20 dBFS) means an analog input level of
0 dBu will light up the LED segment associated with the digital -20
dBFS value on the bar graph meter and also transition from green to
amber at that segment.
Monitoring Inputs
System Overview
The following simple instructions will allow you to get your AMPx-E8
Series monitor up and running quickly; that is, you will be able to
monitor any single input through the monitor’s internal speakers.
Referring to the AMPx-E8 Series rear panel diagrams (Figure 2–8 and
2–9 on page 15) and the front panel controls (Figure 2–1 and Figure 2–2
on page 9) follow the instructions below by signal/connector type.
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C h a p t e r 2 System Overview
Monitoring Inputs
Note:
For a complete description of each front panel control, refer
to Front Panel Controls on page 8.
For a complete description of each rear panel connector,
refer to Rear Panel Connectors on page 14.
Monitoring an Analog Input
1.
To monitor an analog signal, connect the analog input to the rear
panel Balanced Analog In (DB-25) connector.
2.
On the front panel, press the Input button until the LCD screen
displays Analog.
3.
Continue on to Channel Selection and Mixing on page 25.
Monitoring an AES Input
1.
2.
To monitor an AES signal, do one or both of the following:
•
Connect an unbalanced AES signal to the rear panel AES/
PCM In 1 (BNC), and/or
•
Connect a balanced AES signal to the rear panel AES Bal In
& Loop Out (DB-25).
On the front panel, press the Input button until the LCD screen
displays the corresponding input you want to monitor:
•
AES1 for an unbalanced signal (connected to BNC 1).
•
AES2 for a balanced signal (connected to the DB-25).
Table 2–9
AES Input to Channel Relationship
AES BNC Connector
Channel Outputs
1
2
3
4
1 and 2
3 and 4
5 and 6
7 and 8
3.
Refer to Terminating/Unterminating Inputs on page 40 to check/
set your termination settings.
4.
Continue on to Channel Selection and Mixing on page 25.
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C h a p t e r 2 S y s te m O v e rv i e w
M o n it o r in g I n p u ts
Monitoring an SDI Input
1.
2.
3.
To monitor an SDI signal, do one or both of the following:
•
Connect an SDI signal to the rear panel SDI In 1 (BNC), or
•
Connect an SDI signal to the rear panel SDI In 2 (BNC).
On the front panel, press the Input button until the LCD displays
the corresponding input you want to monitor:
•
SDI1 for a signal to the SDI In 1 (BNC), or
•
SDI2 for a signal to the SDI In 2 (BNC).
Continue on to Channel Selection and Mixing on page 25.
Monitoring a Dolby Input
To monitor a Dolby signal, connect the Dolby input to the rear panel
Dolby E/AC-3 In 1 or In 2 (BNC) connector.
On the front panel, press the Input until the LCD screen displays the
Dolby input signal you want to monitor.
•
BSt1 for a signal to the Dolby E/AC-3 In 1 (BNC), or
•
BSt2 for a signal to the Dolby E/AC-3 In 2 (BNC).
4.
Refer to Terminating/Unterminating Inputs on page 40 to check/
set your termination settings.
5.
Continue on to Channel Selection and Mixing immediately below.
Monitoring Dolby in SDI
To Monitor a Dolby signal embedded in SDI, follow the instructions
below.
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821016:
1.
Connect the SDI signal with embedded Dolby to either SDI In 1 or
SDI In 2.
2.
Press the Dolby key (Double D symbol) to activate the bistream
mode.
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C h a p t e r 2 System Overview
C h a n n e l S e l e c ti o n a n d M i x i n g
3.
Press the Input key until the selected input (SDI1 or SDI2) is
shown in the LCD.
4.
Then press the Group button until the pair containing the Dolby
signal is shown in the display (i.e., G1 3/4).
Channel Selection and Mixing
Note:
The level meters will operate automatically, displaying
volume levels for each channel carrying an input signal.
To produce audio through the internal speakers, press each of the
Speaker Assign buttons ( on page 23) until each channel is output
through the speaker of your choice. See Table 2–10.
Table 2–10
AES
Example:
Speaker Assign Button Functionality
Button Press
LED Color
Speaker
1st
2nd
3rd
4th
Steady Green
Flashing Green/Amber
Steady Amber
Off
Left
Both
Right
Neither
Suppose you are monitoring an AES pair connected to the unbalanced
AES/PCM In 1. When AES1 is selected for input, the left channel of
the AES pair will appear on the meter for Channel 1, and the right on
Channel 2. Press the Speaker Assign button for Channel 1 until the
Channel LED turns green. Press the Speaker Assign button for
Channel 2 until the Channel LED turns amber. The left channel of the
AES pair now sounds in the left speaker, and the right channel in the
right speaker.
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CHAPTER 3
Audio Configuration
Introduction
Overview
This chapter is the “how to” chapter. All topics listed below are sorted
alphabetically for easy reference. For information about presets refer to
Chapter 4: Presets on page 43. For information about using the Dolby
features, refer to Chapter 5: Dolby on page 49.
Topics
Topics
Introduction
Page
27
Analog Output Preference
28
Monitoring and Mixing Modes
29
Muting the Speakers
33
Phase Correlation
34
SDI Inputs
35
Selecting the Input Signal
38
Setting the Monitor’s Startup Configuration
39
Terminating/Unterminating Inputs
40
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
A n a l o g O u t p u t P re f e re n c e
Analog Output Preference
The Analog Output Preference determines how the Selected/
Downmix Analog Output connectors and the Metered Analog
Output connector output the metered signals when either the DM1,
DM2, or DM3 downmix options are selected. Refer to Rear Panel
Connectors on page 14 for details.
The default setting is Downmix, which outputs the speaker assign with
individual channel scaling (gain settings) intact as determined by the
selected downmix. However, if you select Discrete, then all channels
with the downmix are output from these connectors at full gain without
scaling of the channels as determined by the selected downmix.
To change the analog output settings:
1.
Hold the Fn button while pressing the Setup button.
2.
Press the Down button until the LCD screens AOutPref as shown
in Figure 3–1 below.
Figure 3–1
Analog Output Preference LCD screen
848131
3.03
Setup: AOut Pref
3.
Pressing the Enter button displays either Figure 3–2 or Figure 3–3
depending on the current setting.
Figure 3–2
Analog Output Preference Setting Discrete
-- Setup -Aout Pref: Discr
Figure 3–3
Analog Output Preference Setting Downmix
-- Setup -Aout Pref: D-mix
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C h a p t e r 3 Audio Configuration
Monitoring and Mixing Modes
4.
Press either the Up or Down arrow followed by the Enter button
to change the setting, or press the Escape button to leave it as is.
5.
Press the Escape button again to return to normal operation.
Monitoring and Mixing Modes
Arbitrary Mixing
1.
Press any of the eight speaker assign buttons to activate the mixing
(summing) feature. This mode is indicated by the LCD screen
showing MIX in the upper right and left of the display. See Figure
3–4 below for an example.
Figure 3–4
LCD screen: Speaker Assign
MIX
AES1
MIX
1 3
2 4 - -
2.
Each subsequent press of a speaker assign button assigns the
selected channel to the left, both, right or neither speaker channel.
All eight channels may be mixed/summed in this way. With each
successive button press, the color of the associated speaker assign
LED, and the mixing/routing of that channel, cycles through the
following sequence
Table 3–1
Button Press
1st
2nd
3rd
4th
Speaker Assign Selection
Results
Green (routed to left speaker only)
Alternating Green and Amber
(routed to both left and right speakers)
Amber (routed to right speaker only)
Off (not mixed or routed into either speaker)
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
M o n it o r in g a n d M ix in g M o d e s
Single
This mode allows you to select one and only one signal for each speaker
independently of the other speaker and is most useful when you are
monitoring mono sources.
To select channels individually for each speaker:
1.
Press the Fn + Single buttons to enable single channel selection.
Figure 3–5
Single Channel Selection
CH1
2.
AES1
----
CH2
Press the Left button to cycle through the channel selections for
the left speaker. Likewise, press the Right button to cycle through
the channel selections for the right speaker.
Pairs
This mode allows you to quickly assign one pair of channels to the
speakers. The selections are limited to Channels 1-2, 3-4, 5-6, and 7-8.
In all cases, the odd channel is sent to the left speaker, and the even
channel to the right. This mode is most useful when you are monitoring
stereo sources.
To select channel pairs for each speaker:
1.
Press the Fn + Pair buttons to enable channel pair selection.
Figure 3–6
Channel Pair Selection
CH7
2.
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CH8
Use the Left Up or Right Up buttons to cycle through the channel
pair selections.
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C h a p t e r 3 Audio Configuration
Monitoring and Mixing Modes
Downmix
This mode is most useful when multiple signals need to be mixed
together and monitored at the same time. DM1-3 are designed for 5.1
surround sound signals, and assume a channel arrangement of
(Channels 1-6 respectively):
• Left Front, Right Front,
• Center, LFE (Subwoofer),
• Left Surround, Right Surround.
4+4 Mode, Mix A, and Mix B are provided for other types of multichannel monitoring needs.
1.
Press the Fn + Downmix buttons to enable Downmix mode.
2.
Press the Left or Right button to cycle through the seven
available Downmix types to monitor through the speakers:
Note:
•
None of the available DM downmix modes include
Channel 4 because it normally carries the LFE channel
which is below 200 Hz.
DM1: This downmix is most suitable for a loudspeaker or
headphone downmix of a multi-channel program. Left and
left surround input channels mix into the left speaker, right
and right surround input channels mix into the right speaker.
Center input speaker assigns equally into both left and right
speakers. Contribution of the surround channel mix is set by
the Surround Gain entry in the Setup Menu. DM1 is
equivalent to the Japanese ARIB Set 1 downmix formula. See
DM1 Mix Diagram on page 32.
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
M o n it o r in g a n d M ix in g M o d e s
Figure 3–7
•
DM2: You can use this downmix to create a two speaker
assign that can be further decoded to multi-channel program
by the use of an external surround decoder. Contribution of
the surround speaker Assign is set by the surround level
entry in the Setup Menu. DM2 is equivalent to the Japanese
ARIB Set 2 downmix formula. See Figure 3–8 below.
Figure 3–8
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DM1 Mix Diagram
DM2 Mix Diagram
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C h a p t e r 3 Audio Configuration
M u t in g t h e S p e a k e r s
•
DM3: This downmix is the same as DM1 except that the
surround level is fixed at –3 dB. DM3 is equivalent to the
Japanese ARIB Set 3 downmix formula. See Figure 3–9 below.
Figure 3–9
DM3 Mix Diagram
•
4+4: In this downmix Channels 1 through 4 are summed to
the left speaker and Channels 5 through 8 are summed to the
right speaker.
•
MXA and MXB: Select one of these two downmixes to
custom mix by adding Channels 1 through 8 into the left or
the right speakers using the Speaker Assign buttons.
•
MIX: This mode appears whenever the Speaker Assign
buttons are pressed. The selection made in this mode is lost
whenever another mode is selected, or a preset is recalled.
Presets saved in MXA or MXB mode are recalled in this mode.
Muting the Speakers
The AMPx-E8 Series monitor provides two methods for muting the
internal speakers:
1.
Plug in a pair of headphones, or
2.
Press the Mute button.
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
Phase Correlation
Pressing the Mute button allows you to step through three mute
states and an unmuted state. When the system is in one of the
mute states, all other information normally shown in the LCD such
as the Input Status Display is disabled. In addition, all other
buttons are displayed until you unmute the system. See Table 3–2
below.
Table 3–2
Mute Mode Functionality
Button Press
1st
2nd
3rd
4th
Muted State
Mutes both left and right speakers
Mutes the left speaker
Mutes the right speaker
Returns the system to normal operation
Muting functions affect the signals to the speakers/headphones and
the rear panel Selected/Downmix Analog Output connectors.
Muting does not affect the Metered Analog Outputs except to defeat
scaling. These outputs remain active even when the mute state is
enabled.
Note:
When the speakers are muted, the gain scaling of the
Metered Analog Outputs is defeated so that no scaling is
applied during unit muting. Refer to SDI Inputs on page 35
for more information.
Phase Correlation
1.
Pressing the  button displays the phase correlation indicator in
the LCD screen.
The average correlation (phase) for the signal going through the left
speaker compared to the signal going through the right speaker is
indicated by a stationary block appearing in one of three positions on
the second line of the screen. A moving block indicates an
instantaneous (short term sample) phase correlation. Each of the three
positions has a different meaning.
• Center: Only one channel active, or zero (0) correlation between the
two channels
• Left (-): Selected channels are out-of-phase (-1 correlation
maximum)
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C h a p t e r 3 Audio Configuration
SDI Inputs
• Right (+): Selected channels are in-phase (+1 correlation
maximum).
With typical stereo program material, the moving block display is
normal.
If the signals to the speakers are completely independent, they will
have a correlation result of 0, and the block will be stationary in the
center of the screen. See Figure 3–10 below for an example.
Figure 3–10
Phase Correlation Display
-
Phase
ٛ
ٛ
+
A mono in-phase signal fed to both right and left speakers would
result in the block being in the right-most position indicating the left
and right speaker signals are phase-identical.
2.
Press any button to return to normal operation.
SDI Inputs
Selecting SDI Groups and Subgroups
Dolby Decode Mode Disabled
When you select either of the SDI inputs for monitoring while Dolby
Decode mode is disabled, the Group button allows you to select which
two, four-channel SDI audio groups to display in the level meters.
When you press the buttons quickly, the selection order follows that
shown in Table 3–3 on page 36.
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
SDI Inputs
Table 3–3
SDI Group Select
Button
Press
Left Bar Graph Bank
(1 through 4)
Right Bar Graph Bank
(5 through 8)
1st
2nd
3rd
4th
5th
6th
7th
8th
Group 1
Group 3
Group 1
Group 1
Group 1
Group 2
Group 2
Group 3
Group 2
Group 4
Group 2
Group 3
Group 4
Group 3
Group 4
Group 4
1.
Press the Group button quickly to select the group and then wait
until the display flashes once.
2.
Now press the Group button more slowly to toggle between
Group 1/2 and Group 3/4 selections.
After this, rapid presses will again initiate the cycling as shown in
Table 3–3. Since the first two selections are more common choices,
this features allows easy toggling between them.
Dolby Decode Mode Enabled
When you select either of the SDI inputs for monitoring when Dolby
Decode mode is enabled, the Group button allows you to select the SDI
sub-group (two channels) to send to the Dolby decoder. You can select
either of the two available sub-groups within any of the SDI audio
Groups 1, 2, 3, or 4.
The embedded channels within an SDI signal are defined in Table 3–4
below.
Table 3–4
SDI Group
Group 1
Group 2
Group 3
Group 4
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SDI Group Definitions
SDI Sub-Group
Sub-Group 1
Sub-Group 2
Sub-Group 1
Sub-Group 2
Sub-Group 1
Sub-Group 2
Sub-Group 1
Sub-Group 2
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Channels
1 and 2
3 and 4
1 and 2
3 and 4
1 and 2
3 and 4
1 and 2
3 and 4
Designation
G11/2
G13/4
G21/2
G23/4
G31/2
G33/4
G41/2
G43/4
C h a p t e r 3 Audio Configuration
SDI Inputs
Example:
G11/2 will appear on the bottom left hand side of the LCD screen when
the user wants to monitor a bitstream in the first sub-group of Group 1.
This corresponds to Channels 1 and 2 of an ordinary PCM embedded
audio signal. Similarly, G33/4 will appear when the user wants to
monitor a bitstream in the second sub-group of Group 3.
Press of the Group button to cycle through each of the eight choices in
the following order:
• G11/2
• G13/4
• G21/2
• G23/4
• G31/2
• G33/4
• G41/2
• G43/4
Configuring for SDI Delay
Important:
This function only works for SDI signal types.
Modifying the SDI delay value allows you to precisely synchronize the
audio signal to a video signal.
To change the SDI Delay setting:
1.
Hold the Fn button while pressing the Setup button.
2.
Press the Down button until the LCD screens SDI Delay as
shown in Figure 3–11 below.
Figure 3–11
SDI Delay in the Setup Menu
848131
3.03
Setup: SDI Delay
3.
Press the Enter button to select the option. The LCD display to an
image similar to that shown in Figure 3–12 below.
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
Selecting the Input Signal
Figure 3–12
SDI Delay Setting
-SetupSDI Delay: 140 ms
4.
Press either the Up or Down buttons to select the delay in
milliseconds from 10 to 170.
5.
Press the Enter button to make your selection and return to the
Setup Menu.
6.
Press the Escape button to return to normal operation.
Selecting the Input Signal
While the system is in normal operation, press the Input button to
cycle through each of the five selections. The selection is enabled when
it appears in the LCD screen. (Pressing the Enter button is not
necessary.)
• Analog
• AES
•
AES1 (Unbalanced)
•
AES2 (Balanced)
• SDI (not available in the DA model)
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•
Auto.SDI or Auto.SDI2 if no signal is present
•
SD.SDI (signal is present and auto-detected)
•
HD.SDI (signal is present and auto-detected)
•
3G.SDI (signal is present and auto-detected)
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C h a p t e r 3 Audio Configuration
S e t t in g t h e M o n i to r ’ s S ta r tu p C o n f i g u r at i o n
Setting the Monitor’s Startup
Configuration
You can configure the AMPx-E8 Series monitor to start up from a
powered-off state, and automatically begin monitoring a particular
input.
1.
Press the Fn + Setup buttons.
2.
Press the Down button until the LCD screens Startup as shown
in Figure 3–13 below.
Figure 3–13
Startup Menu Option
848131
3.03
Setup: Startup
3.
Press the Enter button to display the Startup list.
4.
Press the Up or Down buttons to scroll through the startup
options. Note that only those options that are available in your
system will show up in the list.
•
Last Used
•
Analog
•
AES 1
•
AES 2
•
SDI 1
•
SDI 2
•
BSt1
•
BSt2
•
SDI 1 + DBY
•
SDI 2 + DBY
5.
Press the Enter button to make your selection and return to the
Setup Menu.
6.
Press the Escape button to return to normal operation.
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C h a p t e r 3 A u d i o C o n f i g u r a ti o n
T e r m in a ti n g / U n te r m i n a t in g I n p u ts
Terminating/Unterminating Inputs
Each of the AES and bitstream inputs on the AMPx-E8 may be
terminated or unterminated independently of each other. A given input
should be terminated when the AMPx-E8 is the last receiving device in
the signal path or is the only receiving device in the signal path. If the
signal loops through the AMPx-E8 to another receiving device, the
input should be unterminated in the AMPx-E8 (and terminated at the
last device in the signal path). Terminating the signals properly
improves signal integrity, and ensures the signal will be received
correctly by all the devices in the signal chain.
In the AMPx-E8 monitors, the terminations are set to “Enabled” by
default for all inputs.
To change the termination settings:
1.
Hold the Fn button while pressing the Setup button.
2.
Press the Down button once. The LCD should look similar to the
image in Figure 3–14 below.
Figure 3–14
AES Termination Settings
848131 2.00
Setup: Aes Term
3.
Press the Enter key. The LCD should now look like the image
Figure 3–15 or in Figure 3–16.
Figure 3–15
Termination Setting Currently Enabled
AES Termination
Unbal. 1: Ena
Figure 3–16
Termination Setting Currently Disabled
AES Termination
Unbal. 1: Disa
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C h a p t e r 3 Audio Configuration
Terminating/Unterminating Inputs
Important:
4.
Press the Up or the Down buttons until the desired input is shown
on the screen.
5.
Press the Enter key to change the termination setting for that
input.
Repeat Steps 4 and 5 until all the inputs have been set according to
your needs.
6.
To exit the menu, press the Up or Down arrow buttons until Save
and Exit appears in the LCD, as shown in Figure 3–17 below.
Figure 3–17
Saving and Exiting the Termination
Settings
AES Termination
Save and Exit
7.
To exit the Setup menu without saving your changes, press
Escape.
In a system with a Dolby card, the termination selection order is:
• Unbalanced 1
• Unbalanced 2
• Unbalanced 3
• Unbalanced 4
• Balanced 1
• Balanced 2
• Balanced 3
• Balanced 4
• Bitstrm. 1
• Bitstrm. 2
• Save and Exit
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41
CHAPTER 4
Presets
Introduction
Overview
This chapter describes how to create, recall, modify, and erase presets. It
also discusses using Preset mode for fast system configuration.
Topics
Topics
Introduction
Page
43
What are Presets?
44
Methods of Accessing the Presets
44
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C h a p t e r 4 P re s e t s
What are Presets?
What are Presets?
The AMP1-E8 is an incredibly flexible tool for monitoring multiple
audio streams. You can configure the entire system to function exactly
the way you want it to for your specific application. You can store a
complete system configuration into a preset. After saving one or more
presets, you can quickly scroll through them with the press of a single
button. The AMPx-E8 allows you to store up to 10 presets (numbered 0
through 9).
Methods of Accessing the Presets
Setup Menu
All presets can be stored, recalled, or erased through the Setup menu.
1.
Press Fn+Setup to enter the Setup menu.
2.
Use the Up and Down arrow buttons to select Save Preset,
Erase Preset, or Recall Preset.
3.
Then press the Enter button.
Each of these menu items is described more fully in Chapter 6: Setup
Menu on page 55.
Preset Mode
This mode of operation is intended for situations where a number of
pre-defined unit configurations is all you need. This allows even the
most non-technical person to quickly scan through a list of sources to
monitor, without having to understand the operation of the rest of the
unit, or which source is plugged into which input of this unit.
In Preset mode, the Input button cycles through the defined presets.
With Preset mode enabled, you can recall a preset by pressing only the
Input button to access each stored preset by name, rather than by
signal type.
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C h a p t e r 4 Presets
Methods of Accessing the Presets
Note:
When this mode is enabled, you can no longer directly select
the inputs by the input type (e.g., AES 1, SDI 2, analog, and
so on). The inputs are accessed only indirectly through the
presets in this mode. To access the inputs by input type, you
must first disable Preset mode.
Enabling/Disabling Preset Mode
To enable or disable Preset mode:
1.
Press Fn+Setup.
2.
Use the Up and Down arrow buttons until PSet Mode appears in
the LCD window and press Enter.
Note:
This selection will not appear if all the presets are
empty. In this case, you will need to store at least one
preset to enable this menu item.
3.
Press the Up and Down arrow buttons to toggle between Disa
(disabled) and Ena (enabled). Press Enter to accept the new
setting, or press Escape to cancel the change. Either way, you will
be returned to the Setup menu.
4.
Press Escape again to return to normal operation.
Recalling a Preset
If Preset mode is enabled, press Input to recall the first available
preset. Subsequent presses will cycle through all the available presets.
Speaker Assign/Preset Buttons (Presets 1 through
4 Only)
Presets 1 through 4 get special attention. You can recall, save, or
overwrite them simply by pressing Fn+Preset x (where x represents
the corresponding Speaker Assign button immediately above or
below the meters on the left side of the unit). In the following examples,
we’ll be using Preset 1.
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C h a p t e r 4 P re s e t s
M e th o d s o f Ac c e s s i n g th e P r e s e ts
Saving a Preset
1.
Press Fn+Preset 1.
If Preset 1 is currently empty, the system will prompt you to save
the current unit configuration to Preset 1.
2.
Name the preset by using the Up and Down arrow buttons to
scroll through the available list of characters. Press Enter to accept
each character.
3.
When you’re done entering all the characters, scroll until _DONE_
appears in the window, and press Enter.
Note:
_DONE_ is located between the lowercase letters and
before the numbers.
Recalling a Preset
If, after pressing Fn+Preset 1, the preset is not empty, the system will
prompt you to recall Preset 1, and Preset 1's name will appear in the
LCD. If you press Enter, the system will recall the preset.
Overwriting a Preset
If, after pressing Fn+Preset 1, the preset is not empty, the system will
prompt you to recall Preset 1, and Preset 1's name will appear in the
LCD.
1.
If you press Escape while the preset recall prompt is showing, the
system will ask you if you want to overwrite the preset. If you
want to overwrite the preset with the unit's current settings, press
Enter.
2.
Press Enter to continue.
3.
Save Old Name? will appear, with the selected preset number
and current name below it. If you wish to use the name displayed,
press Enter, and skip the rest of the following instructions. Your
current settings are now stored in the selected preset.
Otherwise, if you wish to enter a new name, continue on with
Step 4 below.
4.
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Press Escape.
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C h a p t e r 4 Presets
Methods of Accessing the Presets
5.
Name the preset by using the Up and Down arrow buttons to
scroll through the available list of characters. Press Enter to
accept the character; repeat the process until all the characters have
been entered.
6.
When all the characters have been entered, scroll until _DONE_
appears in the window, and press Enter.
Note:
_DONE_ is located between the lowercase letters and
before the numbers.
If you do not want to overwrite the preset, press Escape again, and the
unit will be returned to normal operation without recalling Preset 1 or
modifying it in any way.
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CHAPTER 5
Dolby
Introduction
Overview
This chapter describes how to enter Dolby decode mode to get the most
out of your Dolby signal.
Topics
Topics
Introduction
Page
49
Dolby Input Source Selection
50
Dolby Decoding
50
Dolby Metadata
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Chapter 5 Dolby
Dolby Input Source Selection
Dolby Input Source Selection
1.
Enter Dolby Decode mode by pressing the Dolby button.
2.
Press the Input button to select the source. (The selection is
enabled when it appears in the LCD screen.) Each press of the
Input button cycles through each of the four selections:
•
BSt1 (Bitstream 1)
•
BSt2 (Bitstream 2)
• SDI (not available in the DA model)
3.
•
Auto.SDI or Auto.SDI2 if no signal is present
•
SD.SDI (signal is present and auto-detected)
•
HD.SDI (signal is present and auto-detected)
•
3G.SDI (signal is present and auto-detected)
If one of the SDI inputs is selected, pressing the Group button
selects the de-embedded SDI pair to be decoded.
Figure 5–1
Dolby Input Source Selection
PG1
BSt1
PG1
E
Dolby Decoding
When you connect a valid bitstream containing at least one multichannel program (such as a 5.1 or 7.1 channel surround type) to the
AMPx-E8 Series unit, it enters a default multi-purpose monitoring
mode, the Auto-Monitor Multi-Channel Mode. While this mode initially
sends a downmix to the unit's speakers, this mode also allows you to
select pairs of channels from the multi-channel program in a Dolby
bitstream.
Note:
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You can only enter this mode as described below; it cannot
be selected.
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C h a p te r 5 Dolby
PC M
Use the Left or Right button to scan through the list of programs
available in the selected bitstream. Multi-channel programs will allow
you to scroll through the pairs of the program to isolate individual
channels with the Balance knob or mute features. Channels that are
not enabled per Dolby specifications are not selectable. The appropriate
speaker Assign LEDs above the bar graph meters will light to indicate
which channels are selected to the left and right sides of the unit's
stereo speaker array. While a channel pair is selected in this monitoring
mode, the LCD screen will indicate the selected channel pairs by
showing the first channel (of the selected pair) in the upper left of the
LCD screen and the second channel in the upper right. When the
downmix is selected, the LCD screen will show PgN on both upper left
and right corners of the LCD screen (where N is the Dolby-assigned
program number).
Figure 5–2
Dolby E, Bitstream 1, Program 1
PG1
BSt1
PG1
E
When Dolby Decode mode is enabled (and a valid signal is detected),
Dolby E or Dolby D will show up on the bottom right hand corner of
the LCD screen for Dolby E or Dolby Digital signals, respectively.
Dolby bitstreams can be fed into Dolby BSt1 or BSt2 (a.k.a. bitstream
inputs, labeled as Dolby E/AC3 In), or can be embedded into any
audio pair of an SDI signal present on SDI In 1 or In 2.
Up to eight program selections are available if the signal being
monitored is a Dolby E signal: PG1 through PG8; Dolby Digital allows
only one program. The number available depends on the type of signal
being monitored. See the Table 7–5: Dolby Main Output Channel
Assignments on page 73 for a full list of possible program channel
assignments for both Dolby Digital and Dolby E bitstreams. The three
types of bitstreams accepted at the Dolby inputs are Dolby E, Dolby
Digital, and PCM.
PCM
If the signal being monitored is a PCM (AES/EBU) signal, then only
one monitoring mode is available: PG1. In this mode Channel 1 is sent
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Chapter 5 Dolby
D o lb y M e t a d a ta
into the left speaker and Channel 2 is sent into the right speaker. See
Table 7–5 on page 73 for a table of Dolby main output channel
assignments.
Dolby Metadata
Pressing the MData button when Dolby Decode mode is enabled
displays the metadata of the selected Dolby E or Dolby Digital channels
being monitored. Each press of the MData button cycles through the
properties of the selected Dolby channels in (approximately) the
following order:
• Audio encoding format and bit depth (e.g., Dolby AC-3, Dolby E 20
bit)
• Data rate (e.g., 32, 384, 640)
• Program configuration (e.g., 5.1 + 2, 4x2, 3x2)
• Video frame rate (e.g., 29.97, 30)
• Audio coding (e.g., 3/2, 2/0)
• Dialog normalization (0 to –31 dB)
• Bitstream mode (e.g., complete/main, music/effects)
• Surround mode (e.g., srnd not indicated, not Dolby srnd)
• Surround and center mix level (e.g., -3.0 dB, -6.0 dB)
Note:
The data rate is only available for Dolby D. The video frame
rate is only available for Dolby E.
Some examples of how Dolby metadata information is displayed in the
LCD screen are shown in Figure 5–3 on page 53 and Figure 5–4 on page
53.
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C h a p te r 5 Dolby
Dolby Metadata
Figure 5–3
PG1
Normal Operation - Dolby E
BSt1
Dolby E
PG1
E
20
4x2
Bit
29.97
Audio Coding 2/0
DialNorm
-27dB
Normal Operation
Dolby E, Program 1, Bitstream 1
Encoding Format and Bit Depth
Program Configuration/Video Frame Rate
Audio Coding
Dialog Normalization
Complete/Main
Bitstream Mode
Not Dolby Srnd
Surround Mode
Smix
-3.0dB
Surround Mix Level
Cmix
-3.0dB
Center Mix Level
Figure 5–4
PG1
PG1
Normal Operation - Dolby D
BSt2
PG1
D
BSt1
Dolby
PG1
+
AC-3
448kbps
Audio Coding 3/2
DialNorm
-27dB
Normal Operation
Dolby D, Program 1, Bitstream 2
Normal Operation
Dolby D+, Program 1, Bitstream 2
Encoding Format
Data Rate
Audio Coding
Dialog Normalization
Complete/Main
Bitstream Mode
Srnd NotIndicated
Surround Mode
Smix
-3.0dB
Surround Mix Level
Cmix
-3.0dB
Center Mix Level
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CHAPTER 6
Setup Menu
Introduction
Overview
This chapter explains the options in the Setup menu. Figure 6–1 on page
56 provides a structural overview.
Topics
Topics
Introduction
Page
55
Accessing Setup Mode
56
Analog Output Preference Mode
58
Recalling a Preset
58
Saving a Preset
59
Preset Mode
63
Erasing a Preset
63
SDI Delay
64
Startup
65
Surround Gain
65
Bitstream Detection
66
Phase Bits
67
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Chapter 6 Setup Menu
Accessing Setup Mode
Accessing Setup Mode
Figure 6–1
Setup Menu Tree
Normal
Enter/Esc
Setup: Startup ++
Choose Preset Num
Preset1: On Site
Normal Operation
Last Used
Analog
Esc
Enter
0 through 9
Fn + Setup
AES 1
AES 2
SDI 1
Enter
/Esc
SDI 2
Enter/Esc
RCallPSet +
Ena/Disa
A Vld Det
BSt 1
Enter/Esc
AES Term
BSt 2
Unbal. 1: Ena/Disa
Startup
Enter
/Esc
Unbal. 2: Ena/Disa
Srnd Gain
Unbal. 3: Ena/Disa
Erase Preset
Unbal. 4: Ena/Disa
Pset Mode +
Setup: Srnd Gain
Enter
/Esc
Phase Bts
Mute
-9 dB
-6 dB
Setup: AES Term
AOutPref
SDI 1 + DBY
SDI 2 + DBY
A Vld Det
Setup Menu
SDI Delay
Enter
/Esc
Balanced 1: Ena/Disa
Balanced 2: Ena/Disa
Balanced 3: Ena/Disa
Save Preset
Balanced 4: Ena/Disa
Bitstrm. 1: Ena/Disa
-3 dB
Bitstrm. 2: Ena/Disa
Save and Exit
Enter
/Esc
Setup: Erase PSet
Setup: AOutputPref
Enter
/Esc
0 through 9
Enter/Esc
Choose Preset Num
Preset0: AES MIX
Enter
/Esc
Choose Preset Num
Preset0: DOLBY1
Discrete
Downmix
Enter
/Esc
Enter
Phase Bts
Ena/Disa
Enter/Esc
Unused?
ERASE PRESET?
Preset0: AES MIX
Yes
Setup: SDI Delay
Off through 170 ms
Esc
AES2
?@<A>BC
Name: A_
Setup: Pset Mode
No
OVERWRITE PRESET?
Enter/Esc
Preset1: DOLBY1
Enable
Disable
Enter
Normal
Esc
Save Old Name?
Preset1: DOLBY1
Enter
Normal
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C h a p t e r 6 Setup Menu
Accessing Setup Mode
1.
Enable Setup mode by pressing and holding the Fn button and
then pressing the Setup button. This mode is used to change unit
features.
2.
You can step through the menu selections and parameters using
the Up and Down buttons.
3.
Press the Enter button to save your selections. To cancel the
option and exit the menu, press the Escape button.
The current options in Setup Mode (as shown in Setup Menu Tree on
page 56) are:
• Preset Recall (RCallPSet)
• Preset Save (SavePSet)
• Preset Mode (PsetMode)
• Preset Erase (ErasePSet)
• SDI Delay (only available for the 3G model)
• Surround Gain (Srnd Gain)
• Startup
• Analog Output Preference (AOutPref)
After entering the Setup Menu, the display will indicate the software,
version number, and the menu selection: RCallPSet (if presets are
saved).
Table 6–1
Up Button List
Pressing the Up
Button the...
1st time
2nd time
3rd time
4th time
5th time
6th time
7th time
8th time
Changes the Display to...
SavePSet
PSetMode (if presets are saved)
ErasePset (if presets are saved)
SDI Delay (3G model only)
Srnd Gain
Startup
A-OutPref
RCallPSet
To select the current option, press the Enter button.
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Chapter 6 Setup Menu
A n a l o g O u t p u t P re f e re n c e M o d e
To exit Setup Mode, press the Esc button.
Note:
The RCallSet, PSetMode, and ErasePSet options will
not be available if a preset has not been previously saved to
the unit. See Saving a Preset on page 59 for how to save a
preset of the current unit configuration.
Analog Output Preference Mode
To change the Analog Output Preference, select AOutputPref and
then press the Enter button.
This entry within the Setup menu is used to determine how the
Selected/Downmix Analog Out and Metered Analog Out
connectors on the rear panel output the metered signal when any of the
DM1, DM2, or DM3 downmix selections is enabled.
The default setting is Downmix, which outputs the speaker assign with
individual channel scaling (gain settings) intact as determined by the
selected downmix (DM1, DM2, or DM3). In addition, the channels are
summed at unity gain into the speakers and headphones. However, if
Discrete is selected, then all channels within the downmix are output
from these connectors at unity gain without scaling of the channels as
determined by the selected downmix. For example, the center channel
scaling is -3dB, and the surround channel scaling is set in the Setup
menu.
Recalling a Preset
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1.
Press the Fn + Setup button to display the Setup menu.
2.
Press the Up button to display RCallPSet.
3.
Press the Enter button to select this option.
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C h a p t e r 6 Setup Menu
Saving a Preset
Figure 6–2
Recalling an Existing Preset
Choose PresetNum
Preset1: Off Air
4.
Press the Up and Down buttons to scroll through the presets.
In the example above (Figure 6–2), Preset 1 is called Off Air. If a
particular preset is not assigned, it will be indicated as Unused, as
shown in Figure 6–3 below.
Figure 6–3
Creating a New Preset
Choose PresetNum
Preset7: Unused
5.
Press the Enter button with the desired preset displayed to recall
that preset. The unit returns to normal operation, reconfigured
according to the settings in that preset.
Saving a Preset
1.
Press the Fn+Setup buttons to display the Setup menu.
2.
Press either the Up or Down buttons to display Save Preset.
3.
Press the Enter button.
Decision Point:
If you want to create a brand new preset, continue on to Creating a
New Preset on page 60.
Otherwise, if you want to overwrite an existing preset, continue on to
Overwriting an Existing Preset on page 61.
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Chapter 6 Setup Menu
S a v in g a P r e s e t
Creating a New Preset
Note:
1.
To cancel the procedure at any time during this process,
press the Escape button and the preset will not be saved
and the unit will return to normal operation.
Press either the Up or Down buttons to choose any preset labeled
Unused.
Figure 6–4
Choose an Unused Preset
Choose PresetNum
Preset7: Unused
2.
Press the Enter button to display a prompt for a new preset name
as shown in Figure 6–5.
Figure 6–5
Assigning the Name of a Preset
AES 1
?@<A>BC
Name: A_
3.
Scroll through letters (and symbols) using the Left and Right
buttons. Press the Enter button to accept the current letter shown
in the display and move to the next letter. Repeat this procedure
until the display shows the name you want to use for this preset.
Note:
Pressing the Enter button may display multiple letters,
but the only one that changes will be the one
immediately to the left of the underscore. As a result, it
may be necessary to start the procedure over again if
too many characters appear in the display.
Figure 6–6
Completed Preset Name Selection
HD.SDI1
_DONE_
Name: HDSDI1_
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C h a p t e r 6 Setup Menu
Saving a Preset
Naming will automatically end after you select eight characters, or
when you press the Enter button when _DONE_ appears on the
display. See Figure 6–6 above.
Note:
The _DONE_ selection comes before the numerals, and
follows the lower case alphabet. The character order is
the order of ASCII characters.
After naming the preset, the current state of the system is saved
under that name and preset number, and the system returns to
normal operation.
Important:
This concludes the procedure for creating a new preset.
Overwriting an Existing Preset
1.
Press either the Up or Down buttons to choose any preset that is
not labeled Unused.
Choosing an already used preset will display a warning to the user
that they are about to overwrite the preset, as shown in Figure 6–4
below.
Figure 6–7
Overwriting a Preset
OVERWRITE PRESET
Preset1: Off Air
2.
Press the Enter button to display Save Old Name? (Figure 6–8
on page 61) with the selected preset number and current name
below it. If you wish to use the name displayed, press Enter, and
skip the rest of the following instructions. Your current settings are
now stored in the selected preset.
Figure 6–8
Save Old Name?
Save Old Name?
Preset3: Studio
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Chapter 6 Setup Menu
S a v in g a P r e s e t
3.
Important:
Pressing the Enter button keeps the old name for the new preset
and returns the unit to normal operation.
This concludes the procedure for overwriting an existing preset with
the same name.
Pressing the Escape button displays a prompt for a new preset
name as shown in Figure 6–9 below.
Figure 6–9
Save New Name?
Studio
?@<A>BC
Name: A_
4.
Scroll through letters (and symbols) using the Left and Right
buttons. Press the Enter button to accept the current letter shown
in the display and move to the next letter. Repeat this procedure
until the display shows the name you want to use for this preset.
Note:
Pressing the Enter button may display multiple letters,
but the only one that changes will be the one
immediately to the left of the underscore. As a result, it
may be necessary to start the procedure over again if
too many characters appear in the display.
Naming will automatically end after you select eight characters, or
when you press the Enter button when _DONE_ appears on the
display.
Note:
The _DONE_ selection comes before the numerals, and
follows the lower case alphabet. The character order is
the order of ASCII characters.
After naming the preset, the current state of the system is saved
under that name and preset number, and the system returns to
normal operation.
Important:
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This concludes the procedure for overwriting an existing preset with a
new name.
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C h a p t e r 6 Setup Menu
Preset Mode
Preset Mode
This mode of operation is intended for situations where a number of
pre-defined unit configurations is all you need. This allows even the
most non-technical person to quickly scan through a list of sources to
monitor, without having to understand the operation of the rest of the
unit, or which source is plugged into which input of this unit.
In Preset mode, the Input button cycles through the defined presets.
With Preset mode enabled, you can recall a preset by pressing only the
Input button to access each stored preset by name, rather than by
signal type.
Note:
When this mode is enabled, you can no longer directly select
the inputs by the input type (e.g., AES 1, SDI 2, analog, and
so on). The inputs are accessed only indirectly through the
presets in this mode. To access the inputs by input type, you
must disable Preset mode first
To enable or disable Preset mode:
1.
Press Fn+Setup.
2.
Use the Up and Down arrow buttons until PSet Mode appears in
the LCD window and press Enter.
Note:
This selection will not appear if all the presets are
empty. In this case, you will need to store at least one
preset to enable this menu item.
3.
Press the Up and Down arrow buttons to toggle between Disa
(disabled) and Ena (enabled). Press Enter to accept the new
setting, or press Escape to cancel the change. Either way, you will
be returned to the Setup menu.
4.
Press Escape again to return to normal operation.
Erasing a Preset
This menu command allows you to erase a stored preset. Pressing the
Enter button will allow the user to choose a preset to erase.
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Figure 6–10
Erasing a Preset - Choose the Preset
Number
Choose PresetNum
Preset1: Off Air
The Left and Right buttons select from among the available presets.
Once you press the Enter button to select a preset, the system will
warn you that the preset will be erased.
Figure 6–11
Erasing a Preset - Confirmation
Erase Preset?
Preset1: Off Air
Pressing the Enter button will erase that preset. Pressing the Esc
button will not erase that preset. In either case, control returns to the
menu to choose another preset to erase.
Figure 6–12
Erasing a Preset - Select the Preset to
Erase
Choose PresetNum
Preset2: VTR #2
Press the Esc button to exit Setup Mode and return to Normal
Monitoring Mode.
SDI Delay
Important:
This menu item is not available if this unit has no de-embedder card.
This feature allows you to change the amount of delay added to the deembedded audio signals from the SDI inputs. This allows you to
compensate for video processing delays in external video signal chains
and monitors. This selection delays the monitored SDI audio and the
C h a p t e r 6 Setup Menu
Startup
de-embedded SDI AES signals, but does not affect the reclocked SDI
output in any way.
Figure 6–13
SDI Delay
-SetupSDI Delay: 140 ms
Step through settings using the Up or Down button, select 140 ms (for
example). To accept, press the Enter button. Press the Esc button to
exit Setup Mode and return to Normal Monitoring Mode.
Startup
The Startup entry within the Setup Menu determines the input used
by the unit at power up. When set to Last Used, the unit will power
up the same way that the unit was before power was interrupted. If
instead you want to have the unit start up every time with the same
input selected, repeatedly press the Up/Down buttons until the
desired input is shown in the LCD. Save the selection by pressing the
Enter button. Press the Esc button to exit Setup mode and return to
normal operation.
Surround Gain
To change surround gain, select Srnd Gain and then press the Enter
button.
Figure 6–14
Erasing a Preset
-SetupSrnd Gain -3dB
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Chapter 6 Setup Menu
B i t st re a m D e t e c ti o n
Step through settings using the Up or Down buttons, select -9dB (for
example). To accept, press the Enter button. To exit without saving,
press the Esc button.
Important:
Surround gain adjustments are only effective for downmixes DM1 and
DM2. In downmix DM3 the surround gain is fixed.
Bitstream Detection
The unit will now mute an input pair if it detects the presence of a nonPCM stream (such as a Dolby or DTS bitstream) on that pair. The unit
detects bitstreams with two methods:
A.
Preamble detection
B.
Not-Audio AES Channel status flag is asserted
In terms of Method A, encoded bitstreams contain key data sequences
that identify the type of encoding used. These sequences are known as
preambles (see the SMPTE 337 and 338 standards). This unit can only
detect 16-bit preambles. For example, a 20-bit Dolby E stream would be
passed as PCM audio, instead of being flagged as an encoded stream.
This method is always employed.
In terms of Method B, the upstream equipment must either assert or
de-assert this flag. Unfortunately, not all equipment does this correctly.
In those cases where the channel status flag is set incorrectly, you may
need to disable this method of bitstream detection. This can be done
using the setup menu item A Vld Det. When enabled (Ena), Method B
is used to detect bitstreams. When disabled (Disa), Method B is not
used to detect bitstreams. If your unit is muting PCM streams, set this
item to Disa. If encoded bitstreams are getting through to the speakers,
set this item to Ena.
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C h a p t e r 6 Setup Menu
P h as e B i t s
Phase Bits
For units with SDI de-embedder cards installed, there is a new menu
item available, entitled Phase Bts, which stands for phase bits. These are
bits that are embedded in SDI streams that allow the audio sample rate
to be independent of the video pixel clock, and they are required by the
latest SMPTE standards. However, not all equipment implements these
bits correctly. Normally, this menu item should be left in the Ena
(enabled) setting, which means the phase bits are being used to
properly time the audio samples that are being de-embedded.
If you experience interrupted or garbled audio from the SDI
deembedder, try setting this to Ignor (ignore), which means the
embedded phase words are ignored. If this fixes the garbled audio,
please contact the manufacturer of the upstream equipment to
determine if any firmware updates are available for it. In cases where
phase bits are not embedded at all, or if this menu item is set to Ignor,
the pixel clock will be used as the reference for the de-embedded audio
sample rate.
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CHAPTER 7
Features and
Specifications
Introduction
Overview
This chapter details the features of each of the monitors in the series and
provides the technical specifications. It also outlines the distinctions
between models.
Topics
Topics
Introduction
Page
69
Features
70
Specifications
71
Technical Functional Overview
74
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C h a p t e r 7 F e a t u r e s a n d S p e c i fi c a ti o n s
Features
Features
Common Features
The AMPx-E8 Series audio monitors provide a complete, exceptionally
high quality Dolby E, Dolby Digital (AC-3), 3G/HD/SD-SDI, PCM and
analog stereo audio monitoring solution. A significant feature is the
ability to process and monitor up to eight channels from a Dolby E or
Dolby Digital (AC-3) bitstream, a 3G-SDI, HD-SDI and/or SD-SDI
bitstream, two sets of four AES/EBU signal pairs (balanced and
unbalanced) or eight analog channels. Eight high-resolution,
53-segment, tri-color, LED bar graph audio level meters provide
accurate and instantaneous visual level monitoring at a glance.
• Space-saving 2 RU
• Dolby E, AC-3, AES/EBU, and analog signal monitoring
• Four de-embedded AES balanced or unbalanced outputs
• (Eight channels) from two selected SDI groups
• Four AES/EBU balanced inputs and loop-throughs on a DB-25
connector
• Eight analog inputs on a balanced DB-25 connector
• Eight analog outputs on a balanced DB-25 connector
• Comprehensive multi-channel to stereo downmix capability
• Unit configuration stored while unit is switched off
• Storage for ten preset monitoring settings for easy recall
• Phase (polarity) correlation display of selected channels
• LCD status display on front panel
• Volume and balance controls
• Eight high-resolution 53-segment tri-color LED bar graph level
meters with simultaneous PPM dot over VU bar
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C h a p t e r 7 Features and Specifications
S p e ci f i c a t i o n s
• Headphone output
• Software is field upgradable
Model Distinctions
Table 7–1
Model Functional Distinctions
Model
AMPx-E8DA
AMPx-E8MDA-3G
AES
Analog
SD-SDI
HD-SDI








3G
Dolby



Specifications
Table 7–2
Specifications for the AMPx-E8 Series
Monitors
Specification
Analog Input Impedance
AES Input Configuration
Analog Input Overload
Analog Reference
Digital Reference
Meter Dynamics (AES Scale)
Level Meter Scale (standard)
AES Input Sampling Rate
D to A Converter
Peak Acoustic Output (at 2 ft.)
Acoustic Distortion
Response, 6th Octave
Distortion, Electrical
Hum and Noise, Analog
Value
27K balanced, minimum
110 balanced, 75 unbalanced
+24 dBu balanced
+8, +6, +4, or 0 dBu
-20, -18, or -9 dBFS
VU and PPM
AESa
32 to 48 kHz, auto-selected
24-bit low jitter
104 dB SPL
6% or less at worst case frequencies
above 140 Hz including cabinet
resonance; typically < 1.5%
80Hz to 18 KHz ± 5 dB
(-10 dB at 55 Hz, 21 kHz)
<0.15% at any level below limit
threshold
Better than 68 dB below full output
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C h a p t e r 7 F e a t u r e s a n d S p e c i fi c a ti o n s
S p e c if i c a ti o n s
Table 7–2
Specifications for the AMPx-E8 Series
Monitors
Specification
Value
Power Output
High Frequency
6 W RMS (each channel)
Low Frequency
Converted Analog Out THD
Magnetic Shielding
14 W RMS
<0.008%
<1 Gauss any adjacent surface
• AES (D-Sub 25, 4 BNC)
Inputs
• 3G/HD/SD-SDI (2 BNC)
• Analog (D-Sub 25)
• Dolby (2 BNC)
• Metered Analog (DB-25)
• 3G/HD/SD-SDI Re-Clocked
(BNC)
Outputs
• AES Unbalanced Out from SDI
(HD-15)
• (Optional) Balanced AES Out
from SDI Input (DB-25)
• Selected Downmix/Analog Out
(Left and Right, XLR-M)
Power Consumption
AC Mains Input
2RU Model Chassis
Dimensions
1RU Model Chassis
Dimensions
Shipping Weight
a
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• AES Bal In/Loop Out (DB-25)
72  max
100 to 240 VAC, 50 to 60 Hz
3.5” H x 19” W x 12.5” D
(89 mm x 483 mm x 317.5 mm)
(Depth, including controls and
knobs, is 14” [355.6 mm])
1.75” x 19” x 11”
(4.5 mm x 483 mm x 30 mm)
(Depth, including controls and
knobs, is 13.5” [342.9 mm])
1 RU: 18 lbs. (8.20 kg)
2 RU:
22 lbs. (9.98 kg)
Other level meter scales are available at time of manufacture including BBC,
DIN, and others. Contact Wohler for more information concerning alternate
scales.
A M P x- E 8 S e r i e s U s er G u i d e
© 2 0 1 1 Wo h l e r Tec h n o l o g i e s , I n c. A l l r i g h t s r e s er ve d .
C h a p t e r 7 Features and Specifications
S p e ci f i c a t i o n s
Note:
Table 7–3
All features and specifications are subject to improvement
without notice.
Size-Specific Specifications for the AMPx-E8 Series
Monitors
Specification
AMP1s
Rack Height
Level Meter Segments
Table 7–4
1RU
25 segments
2RU
53 segments
Functionality-Specific Specifications for the AMPx-E8
Series Monitors
Specification
DAs
Audio Phase Data
(SMPTE 299-2009)
Table 7–5
AMP2s
3Gs
You can now select to ignore the phase data.
Dolby Main Output Channel Assignments
Dolby E Program
configuration
or
Dolby Digital
Coding Mode
5.1 + 2
5.1 + 1 + 1
4+4
4+2+2
4+2+1+1
4+1+1+1+1
2+2+2+2
2+2+2+1+1
2+2+1+1+1+1
2+1+1+1+1+1
1+1+1+1+1+1
5.1
4+2
4+1+1
2+2+2
2+2+1+1
2+1+1+1+1
1+1+1+1+1
Main Output Channel Assignment
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Ch 6
Ch 7
Ch 8
0L
0L
0L
0L
0L
0L
0L
0L
0L
0L
0C
0L
0L
0L
0L
0L
0L
0C
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
1C
0R
0R
0R
0R
0R
0R
1C
0C
0C
0C
0C
0C
0C
2L
2L
2C
3C
2C
0C
0C
0C
2L
2C
3C
2C
0LFE
0LFE
0S
0S
0S
0S
2R
2R
3C
4C
3C
0LFE
0S
0S
2R
3C
4C
3C
0Ls
0Ls
1C
2L
2C
3C
3L
3C
4C
5C
4C
0Ls
none
none
none
none
none
4C
0Rs
0Rs
1S
2R
3C
4C
3R
4C
5C
6C
5C
0Rs
none
none
none
none
none
5C
1L
1C
1L
1L
1L
1C
1L
1L
1L
1L
6C
none
1L
1C
1L
1L
1C
none
1R
2C
1R
1R
1R
2C
1R
1R
1R
1R
7C
none
1R
2C
1R
1R
2C
none
8 2 1 0 1 6 : A M P x- E 8 S e r i e s U s e r G u i d e
© 2 0 1 1 Woh l er Te c h n o l o g i es , I n c . A ll r i g h t s r e se r ve d .
73
C h a p t e r 7 F e a t u r e s a n d S p e c i fi c a ti o n s
Technical Functional Overview
Table 7–5
Dolby Main Output Channel Assignments
Dolby E Program
configuration
or
Dolby Digital
Coding Mode
4
2+2
2+1+1
1+1+1+1
3/2L (Dolby Digital)
3/2 (Dolby Digital)
2/2L (Dolby Digital)
2/2 (Dolby Digital)
3/1L (Dolby Digital)
3/1 (Dolby Digital)
2/1L (Dolby Digital)
2/1 (Dolby Digital)
3/0L (Dolby Digital)
3/0 (Dolby Digital)
2/0 (Dolby Digital)
1/0 (Dolby Digital)
1+1 (Dolby Digital)
PCM
Main Output Channel Assignment
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Ch 6
Ch 7
Ch 8
0L
0L
0L
0C
0L
0L
0L
0L
0L
0L
0L
0L
0L
0L
0L
none
0C
0L
0R
0R
0R
1C
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
none
1C
0R
0C
none
none
2C
0C
0C
none
none
0C
0C
none
none
0C
0C
none
0C
none
none
0S
none
none
3C
0LFE
none
0LFE
none
0LFE
none
0LFE
none
0LFE
none
none
none
none
none
none
none
none
none
0Ls
0Ls
0Ls
0Ls
0S
0S
0S
0S
none
none
none
none
none
none
none
none
none
none
0Rs
0Rs
0Rs
0Rs
none
none
none
none
none
none
none
none
none
none
none
1L
1C
none
none
none
none
none
none
none
none
none
none
none
none
none
none
none
none
1R
2C
none
none
none
none
none
none
none
none
none
none
none
none
none
none
none
Technical Functional Overview
Figure 7–1 on page 75 through Figure 7–3 on page 77 illustrate the
overall functionality of each of the AMPx-X8 models.
74
821016:
A M P x- E 8 S e r i e s U s er G u i d e
© 2 0 1 1 Wo h l e r Tec h n o l o g i e s , I n c. A l l r i g h t s r e s er ve d .
C h a p te r 7 Features and Specifications
T e c h n i c al F u n c ti o n al O v e r v ie w
Figure 7–1
AMP1-E8DA Block Diagram
1
2
3
4
5
6
7
8
LCD Display
Group & Channel Switching Status
uP Control / U.I.
Level Metering
Balanced
Analog Inputs
(DB-25)
Balanced
AES Inputs
and Loop-Through
Outputs
(DB-25)
1-2
Analog to
Digital
Balanced Digital In 1-2
Unbalanced Digital In 1-2
1-2
3-4
5-6
7-8
Dolby / SDI In 1-2
3-4
Analog to
Digital
Balanced Digital In 3-4
Unbalanced Digital In 3-4
Dolby / SDI In 3-4
Unbalanced
AES/EBU
Inputs (BNC)
5-6
Analog to
Digital
Balanced Digital In 5-6
Unbalanced Digital In 5-6
Dolby / SDI In 5-6
7-8
Analog to
Digital
Balanced Digital In 7-8
Unbalanced Digital In 7-8
Dolby / SDI In 7-8
RS-232 B (DB-9)
1
2
3
Digital Input Select
1
2
3
Digital Input Select
1
2
3
Digital Input Select
1
2
3
A
1-2 Digital to
Analog
1
2
3-4 Digital to
Analog
3
4
5-6 Digital to
Analog
5
6
7-8 Digital to
Analog
7
8
D
D/A Select
A
D
D/A Select
A
D
D/A Select
A
D
Headphone
L
Decoded (AES) Output
of Dolby E/AC-3 Source
AES MIX Output
of Dolby E/AC-3 Source
Digital Input Select
Volume Balance
Stereo Analog
Amplifier
DOLBY
Interface
Dolby Section
Dolby E / AC-3 Inputs
Level Metering
D/A Select
Analog Matrix & Channel Summing with Front Panel Control
RS 232
(DB-9)
Dolby In Select
R
Selected/Downmix
Metered Analog Out Analog Out from
Selected Source
From Selected
(Stereo)
Source
(Chan. 1-8)
8 2 1 0 1 6 : A M P x- E 8 S er ie s U s e r G u i d e
© 2 0 1 1 Woh l e r Te c h n o l o g i es , I n c . A l l r i g h t s r e se r ve d .
75
C h a p t e r 7 Features and Specifications
Technical Functional Overview
Figure 7–2
AMP2-E8DA Block Diagram
1
2
3
4
5
6
7
8
LCD Display
Group & Channel Switching Status
uP Control / U.I.
Level Metering
Balanced
Analog Inputs
(DB-25)
Balanced
AES Inputs
and Loop-Through
Outputs
(DB-25)
1-2
Analog to
Digital
Balanced Digital In 1-2
Unbalanced Digital In 1-2
1-2
3-4
5-6
7-8
Dolby / SDI In 1-2
3-4
Analog to
Digital
Balanced Digital In 3-4
Unbalanced Digital In 3-4
Dolby / SDI In 3-4
Unbalanced
AES/EBU
Inputs (BNC)
5-6
Analog to
Digital
Balanced Digital In 5-6
Unbalanced Digital In 5-6
Dolby / SDI In 5-6
7-8
Analog to
Digital
Balanced Digital In 7-8
Unbalanced Digital In 7-8
Dolby / SDI In 7-8
RS-232 B (DB-9)
Level Metering
Digital Input Select
1
2
3
Digital Input Select
1
2
3
Digital Input Select
1
2
3
Digital Input Select
1
2
3
Dolby In Select
AES MIX Output
of Dolby E/AC-3 Source
821016:
1-2 Digital to
Analog
1
2
D
D/A Select
A
3-4 Digital to
Analog
3
4
5-6 Digital to
Analog
5
6
D
D/A Select
A
D
D/A Select
A
D
7-8 Digital to
Analog
7
8
L
Decoded (AES) Output
of Dolby E/AC-3 Source
76
A
Headphone
Volume Balance
Stereo Analog
Amplifier
A M P x-E 8 S er i es U s e r G u id e
© 2 0 1 1 Woh le r Te ch n o l o g i e s , I n c . A l l r ig ht s r es e r ve d .
Left
Speaker
Woofer
Speaker
Right
Speaker
DOLBY
Interface
Dolby Section
Dolby E / AC-3 Inputs
D/A Select
Analog Matrix & Channel Summing with Front Panel Control
RS 232
(DB-9)
R
Selected/Downmix
Analog Out from
Analog Out From Selected Source
Selected Source
(Stereo)
(Chan. 1-8)
C h a p te r 7 Features and Specifications
T e c h n i c al F u n c ti o n al O v e r v ie w
Figure 7–3
AMP1-E8MDA-3G Block Diagram
1
2
3
4
5
6
7
8
LCD Display
Group & Channel Switching Status
RS-232 A
uP Control / U.I.
Balanced
Analog Inputs
(DB-25)
Level Metering
Digital Input Select
Balanced Digital In 1-2
Unbalanced Digital In 1-2
1-2
3-4
5-6
7-8
Balanced
AES Inputs
and Loopthrough
Outputs
(DB-25)
Level Metering
Analog to
Digital
Dolby / SDI In 1-2
3-4
Analog to
Digital
Dolby / SDI In 3-4
Unbalanced
AES/EBU
Inputs (BNC)
5-6
Analog to
Digital
Analog to
Digital
1
2
3-4 Digital to
Analog
3
4
5-6 Digital to
Analog
5
6
7-8 Digital to
Analog
7
8
D/A Select
A
1
2
3
D
D/A Select
A
1
2
3
D
Digital Input Select
Balanced Digital In 7-8
Unbalanced Digital In 7-8
Dolby / SDI In 7-8
1-2 Digital to
Analog
D
Digital Input Select
Balanced Digital In 5-6
Unbalanced Digital In 5-6
Dolby / SDI In 5-6
7-8
A
1
2
3
Digital Input Select
Balanced Digital In 3-4
Unbalanced Digital In 3-4
D/A Select
D/A Select
A
1
2
3
Headphone
Analog Matrix & Channel Summing with Front Panel Control
1-2
Volume Balance
Stereo Analog
Amplifier
D
RS-232 C
Output
(Reclocked)
3G/HD/SD-SDI Section
3G/HD/SD
Interface
Unbalanced
AES Output
from SDI
SDI to AES
Input #1
Input #2
RS-232 B
DOLBY
Interface
Decoded (AES) Output
of Dolby E/AC-3 Source
Dolby E / AC-3 Inputs
AES MIX Output
of Dolby E/AC-3 Source
L
Metered Analog Out
From Selected
Source
(Chan. 1-8)
R
Selected/Downmix
Analog Out from
Selected Source
(Stereo)
Dolby In Select
Dolby Section
8 2 1 0 1 6 : A M P x- E 8 S er ie s U s e r G u i d e
© 2 0 1 1 Woh l e r Te c h n o l o g i es , I n c . A l l r i g h t s r e se r ve d .
77
C h a p t e r 7 Features and Specifications
Technical Functional Overview
Figure 7–4
AMP2-E8MDA-3G Block Diagram
1
2
3
4
5
6
7
8
LCD Display
Group & Channel Switching Status
RS-232 A
uP Control / U.I.
Level Metering
1-2
Digital Input Select
Balanced Digital In 1-2
Unbalanced Digital In 1-2
1-2
3-4
5-6
7-8
Balanced
AES Inputs
and Loopthrough
Outputs
(DB-25)
Level Metering
Analog to
Digital
Dolby / SDI In 1-2
3-4
Analog to
Digital
Dolby / SDI In 3-4
Unbalanced
AES/EBU
Inputs (BNC)
5-6
Analog to
Digital
Analog to
Digital
1
2
D/A Select
A
1
2
3
3-4 Digital to
Analog
3
4
5-6 Digital to
Analog
5
6
D
D/A Select
A
1
2
3
D
Digital Input Select
Balanced Digital In 7-8
Unbalanced Digital In 7-8
Dolby / SDI In 7-8
1-2 Digital to
Analog
D
Digital Input Select
Balanced Digital In 5-6
Unbalanced Digital In 5-6
Dolby / SDI In 5-6
7-8
A
1
2
3
Digital Input Select
Balanced Digital In 3-4
Unbalanced Digital In 3-4
D/A Select
D/A Select
A
1
2
3
7-8 Digital to
Analog
7
8
Analog Matrix & Channel Summing with Front Panel Control
Balanced
Analog Inputs
(DB-25)
Headphone
Volume Balance
Stereo Analog
Amplifier
D
3G/HD/SD-SDI Section
3G/HD/SD
Interface
SDI to AES
Output
(Reclocked)
Unbalanced
AES Output
from SDI
RS-232 B
DOLBY
Interface
Decoded (AES) Output
of Dolby E/AC-3 Source
Dolby E / AC-3 Inputs
AES MIX Output
of Dolby E/AC-3 Source
78
821016:
Dolby In Select
Dolby Section
A M P x-E 8 S er i es U s e r G u id e
© 2 0 1 1 Woh le r Te ch n o l o g i e s , I n c . A l l r ig ht s r es e r ve d .
L
Analog Out From
Selected Source
(Chan. 1-8)
Woofer
Speaker
Right
Speaker
RS-232 C
Input #1
Input #2
Left
Speaker
R
Selected/Downmix
Analog Out from
Selected Source
(Stereo)
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