Dreadnaught Owner`s Manual
THETA DIGITAL
C
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Dreadnaught
Owner’s Manual
Rev 102c
I
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N
PREFACE
CONGRATULATIONS
You have just acquired the most advanced and versatile component for the amplification of audio ever to have
been developed.
IMPORTANT
Save all packaging in a dry place away from fire hazards. Your Dreadnaught is a precision electronic
instrument and should be properly packaged any time shipment is made. In the unlikely event that you have
to return your Dreadnaught to the factory for service, or if you send it to us for updating, the original packaging
will best protect the unit from shipping damage.
In order to achieve the fullest flexibility and enjoyment from your Dreadnaught, we at Theta recommend that
you read this manual in full before connecting the unit to your audio/video system.
Note: It is imperative that the Dreadnaught be operated in a well ventilated environment and the immediate
external temperature be maintained as specified. External cooling fans may be required in some cases. Do
not stack any equipment directly above or below the Dreadnaught to protect it from overheating, as well as the
continued functionality of any equipment near and around it.
Warning: Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground,
and cannot be connected to a system ground or a loudspeaker system with a common ground. Consult your
speaker manufacturer to ensure that any speaker in your system that will be connected to the Dreadnaught
does NOT have internal circuitry with a common ground.
WARNING
United States law prohibits disposition of these commodities to Libya, Laos, North Korea, Cambodia or Cuba
unless otherwise authorized by the United States.
© 1999 - 2000 Theta Digital Corporation. All rights reserved.
Written and Illustrated by Glenn Buckley.
This manual is also available for download as a PDF file at Theta Digital’s website. http://www.thetadigital.com
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, for any purpose, without the express written permission of Theta Digital Corporation.
ii
The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure that may be of
significant magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE
CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THE AC (POLARIZED) PLUG WITH AN
EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY
INSERTED TO PREVENT BLADE EXPOSURE.
Extension cords are not recommended for use with this product.
iii
Dreadnaught Identification Record
This information is for your records and for future identification of the Dreadnaught. Please take a moment to
fill out all pertinent data now, and as upgrades and/or options are installed. Whenever upgrades, inquiries
and/or changes are requested, the serial number will be required.
SERIAL NUMBER
DATE PURCHASED
DEALER’S NAME
DEALER’S ADDRESS/PHONE
INSTALLED CARDS/OPTIONS
(Date of installation)
(Date of installation)
(Date of installation)
(Date of installation)
(Date of installation)
(Date of installation)
(Date of installation)
iv
SAFETY PRECAUTIONS
Please carefully read each item of the operating instructions and safety precautions before installing and
using this product. Use extra care to follow the warnings written on the product itself and/or in the operating
instructions. Keep the operating instructions and safety precautions for future reference.
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE ANY OF THE COVER
PANELS.
NO USER-SERVICEABLE PARTS INSIDE.
PERSONNEL ONLY.
REFER ALL SERVICING TO QUALIFIED SERVICE
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT ALLOW LIQUIDS TO SPILL OR OBJECTS TO FALL
INTO ANY OPENINGS OF THE PRODUCT.
THIS UNIT IS SUPPLIED WITH A 3 PIN GROUNDED AC PLUG. ALWAYS INSERT THE AC PLUG INTO
A GROUNDED OUTLET. DO NOT REMOVE THE GROUND PIN OR DISABLE THE GROUND FOR ANY
PURPOSE.
BEFORE MAKING ANY CONNECTIONS TO THE DREADNAUGHT, FIRST TURN OFF THE POWER AND
THEN DISCONNECT THE AC POWER CORD.
WHEN INSTALLING THE DREADNAUGHT IN YOUR SYSTEM, MAKE CERTAIN TO ALLOW A MINIMUM
OF ½ INCH OF VENTILATION ON EACH SIDE OF THE UNIT. ALSO ALLOW AT LEAST 3 INCHES OF
VENTILATION SPACE ABOVE THE UNIT. IMPROPER VENTILATION OF THE UNIT MAY CAUSE
OVERHEATING, WHICH MAY DAMAGE THE UNIT AND CAUSE A FIRE. PLACE THE UNIT ON A
SOLID SURFACE ONLY. I.E. NOT ON CARPET, ETC.
DO NOT PLACE THE DREADNAUGHT NEAR HEAT SOURCES SUCH AS DIRECT SUNLIGHT,
STOVES, HEAT REGISTERS, RADIATORS OR OTHER HEAT PRODUCING EQUIPMENT.
TO PREVENT DAMAGE TO THE ANALOG OUTPUT CIRCUITRY, BE CERTAIN NOT TO SHORT THE
OUTPUT SIGNAL TO GROUND. ENSURE THAT YOUR AUDIO OUTPUT CABLES DO NOT HAVE ANY
INTERNAL SHORTS BEFORE CONNECTING THEM TO THE DREADNAUGHT.
IF REPLACEMENT OF THE AC LINE FUSE AND/OR ANY INTERNAL FUSE BECOMES NECESSARY,
REPLACE ONLY WITH SAME VALUE AND TYPE OF FUSE. NEVER BYPASS THE FUSE.
IF THE AC CORD BECOMES DAMAGED, DO NOT USE IT. IMMEDIATELY REPLACE IT WITH A NEW
ONE OF THE SAME OR BETTER RATING.
IT IS IMPERATIVE THAT THE DREADNAUGHT BE OPERATED IN A WELL VENTILATED
ENVIRONMENT AND THE IMMEDIATE EXTERNAL TEMPERATURE BE MAINTAINED AS SPECIFIED.
EXTERNAL COOLING FANS MAY BE REQUIRED IN SOME CASES. DO NOT STACK ANY
EQUIPMENT DIRECTLY ABOVE OR BELOW THE DREADNAUGHT AS TO PROTECT IT FROM
OVERHEATING, AS WELL AS THE CONTINUED FUNCTIONALITY OF ANY EQUIPMENT NEAR AND
AROUND IT.
EACH CHANNEL IS A BALANCED BRIDGE AMPLIFIER, THUS THE NEGATIVE SPEAKER TERMINAL
IS NOT A GROUND, AND CANNOT BE CONNECTED TO A SYSTEM GROUND OR LOUDSPEAKER
SYSTEM WITH A COMMON GROUND. CONSULT YOUR SPEAKER MANUFACTURER TO ENSURE
THAT ANY SPEAKER IN YOUR SYSTEM THAT WILL BE CONNECTED TO THE DREADNAUGHT DOES
NOT HAVE INTERNAL CIRCUITRY WITH A COMMON GROUND.
AFTER MARKET and THIRD PARTY MODIFICATIONS
Please note that any after market and/or third party modifications will void the warranty. In the case of
changing the feet on a unit, in order to prevent any damage (which will also not be covered under warranty),
please verify that the screws being used to secure non-Theta feet do not screw any deeper into the chassis
than the original ones. The original screw is 1/4-20 by 1/2 and goes into the chassis 1/4 inch.
v
Table of Contents
PREFACE ........................................................................................................................................................... ii
WARNING......................................................................................................................................................iii
Dreadnaught Identification Record ................................................................................................................ iv
SAFETY PRECAUTIONS ...............................................................................................................................v
INTRODUCTION .............................................................................................................................................. vii
Getting to know your Dreadnaught .................................................................................................................1
Burn-In Time ...................................................................................................................................................1
Reference Manual Conventions......................................................................................................................1
IMPORTANT NOTICE ....................................................................................................................................2
Dreadnaught Block Diagram ...........................................................................................................................3
Front Panel Layout..........................................................................................................................................5
Rear Panel Layout ..........................................................................................................................................6
OPERATION.......................................................................................................................................................8
Single and Two channel Modules ...................................................................................................................8
Remote Triggers .............................................................................................................................................8
RS232 .............................................................................................................................................................8
Appendix A Troubleshooting Guide ..............................................................................................................9
Appendix B Wiring Diagram........................................................................................................................10
Appendix C RS232 Protocol .......................................................................................................................11
RS232 Jumper Settings.............................................................................................................................14
Appendix D Specifications ..........................................................................................................................15
vi
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vii
INTRODUCTION
Getting to know your Dreadnaught
This Dreadnaught has been put through a rigorous and unique testing procedure that ensures that it will last
for many years with minimal service requirements. This procedure includes the following:
•
All assembled circuit boards are given a thorough visual inspection and are then tested in a benchreference Dreadnaught.
•
The tested, assembled circuit boards are then installed in a new Dreadnaught and the whole unit is
tested for every function and parameter.
•
The unit is put on a burn-in torture rack to test for any possible component failures.
•
It is then tested on an audio analyzer for all pertinent parameters.
•
The unit has all remaining chassis components installed and then undergoes a complete visual
inspection, which assures that all Dreadnaughts meet visual specifications.
•
The Dreadnaught then undergoes a critical listening and functional test.
Burn-In Time
This unit has a break in period of about 1 week during which continuous improvement in sound quality will be
observed. It is recommended that music be played continuously through the unit during this time to expedite
the break in period.
Reference Manual Conventions
For clarity purposes, references to buttons and LED’s will be shown in bold capital letters.
1
IMPORTANT NOTICE
I.
It is imperative that the Dreadnaught be connected to a ground via its three wire AC power cord. It is
important that the AC power outlet, which the Dreadnaught is plugged into, is actually grounded.
Failure to do so will severely compromise the performance, reliability and safety of use of the
Dreadnaught.
II.
Ventilation is an important issue when placing the Dreadnaught in a system. Make certain that the
Dreadnaught is placed in a well-ventilated area or rack unit.
III.
Please take note that some powerline conditioners defeat the AC power ground on their outlets. If
the intention is to plug the Dreadnaught into a line conditioner, check with your dealer to make
certain that the particular conditioner that is intended for use DOES NOT DEFEAT THE AC
GROUND on its AC outlets. Only the highest powered line conditioners should be considered for
use with the Dreadnaught. Otherwise, the amplifier’s power output may be compromised.
IV.
DO NOT remove any cover panels from the Dreadnaught, as there are no user serviceable
components inside. Refer servicing and updating to qualified service personnel only.
V.
Endcaps on all unused RCA inputs will improve the sound quality and may reduce the susceptibility
to RF induced anomalies.
VI.
It is imperative that the Dreadnaught be operated in a well ventilated environment and the immediate
external temperature be maintained as specified in Appendix D of this manual. External cooling fans
may be required in some cases. Do not stack any equipment directly above or below the
Dreadnaught as to protect it from overheating, as well as the continued functionality of any
equipment near and around it.
VII.
Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground,
and cannot be connected to a ground or a loudspeaker system with a common ground. Consult your
speaker manufacturer to ensure that any speaker in your system that will be connected to the
Dreadnaught does NOT have internal circuitry with a common ground.
2
Dreadnaught Block Diagram
Figure 1 - Block Diagram (Dreadnaught showing one channel module)
3
Dreadnaught Block Diagram con’t.
Figure 2 - Block Diagram (Dreadnaught showing two channel module)
4
Front Panel Layout
Figure 3 - Front Panel Layout
1.
STANDBY button. After the rear panel MAIN POWER switch is turned on press the front panel STANDBY button
to exit the standby mode. All channels on the stereo bus will come out of standby. If the surround bus is active,
with specific channels assigned to it, they will exit the standby mode as well.
2.
SURROUND button. Activates/deactivates the SURROUND bus.
3.
SURROUND LED. Illuminates when the surround bus is active.
4.
THERMAL LED. Illuminates when any channel’s temperature rises above the maximum operating temperature.
5.
STANDBY LED. Illuminates red when the power amplifier is in STANDBY, green when the amplifier is active.
5
Rear Panel Layout
Figure 4 – Rear Panel Layout showing both single and two channel modules installed
1.
BINDING POST. (Single Channel module). Connect plus and minus speaker wires for one speaker to
appropriately marked terminals of each post. The binding post on the single channel module accepts spade lugs
only.
2.
Channel THERMAL LED. Illuminates when the channel rises above the maximum operating temperature. The
Dreadnaught should be powered off and cooled when this LED is lit.
3.
Channel FUSE RAIL + LED. When this LED is illuminated, an internal fuse on the positive rail of the channel is
blown.
4.
Channel FUSE RAIL – LED. When this LED is illuminated, an internal fuse on the negative rail of the channel is
blown.
5.
SINGLE-ENDED input jack on single channel module.
6.
POSITIVE BINDING POST – Channel A. (Two channel module). Connects to the + (plus) speaker connector.
The binding posts on the two channel module can accept spade lugs, banana plugs or bare wire.
7.
NEGATIVE BINDING POST – Channel A. (Two channel module). Connects to the – (minus) speaker connector.
8.
BALANCED input jack – Channel A of two channel module.
9.
SINGLE-ENDED input jack – Channel A on two channel module.
10. SURROUND REMOTE TRIGGER jack. When the rear panel SURROUND TRIGGER jack receives a 5-12 VDC
pulse the Dreadnaught’s surround mode will change from its current status, either on or off.
11. DB9 RS232 connector. Used for connecting an external controller to the Dreadnaught to control and monitor its
functions.
12. RJ45 RS232 connector. See DB9 RS232 connector.
13. STANDBY REMOTE TRIGGER jack. When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse
the Dreadnaught will change its mode from either standby to operate, or operate to standby, depending on its
current mode.
14. SINGLE-ENDED/BALANCED input selector switch. Selects either the single-ended or balanced input jack. This
switch is necessary only on a single channel module.
15. STEREO/SURROUND bus selector switch. Assigns the affected module to either the STEREO or SURROUND
buss.
6
16. BALANCED input jack on single channel module.
17. POSITIVE BINDING POST – Channel B. (Two channel module). Connects to the + (plus) speaker connector.
The binding posts on the two channel module can accept spade lugs, banana plugs or bare wire.
18. NEGATIVE BINDING POST – Channel B. (Two channel module). Connects to the – (minus) speaker connector.
19. STEREO/SURROUND bus selector switch. Assigns the affected module (both channels) to either the STEREO
or SURROUND buss.
20. BALANCED input jack – Channel B of two channel module.
21. SINGLE-ENDED input jack – Channel B on two channel module.
22. Main Power Switch. Master power switch. Disconnects AC to all circuits. It is recommended that this be left ON
at all times during regular use with the exception of whenever cables are connected/disconnected or when the
unit is not going to be used for an extended period of time.
23. Rear panel FUSE. If necessary, replace with same type and rating only.
24. AC POWER INPUT.
7
OPERATION
Before turning on the Dreadnaught, ensure that all precautions and warnings have been carefully reviewed
and adhered to. Damage to the Dreadnaught caused by improper operation, wiring and/or ventilation will not
be covered under warranty and Theta will not be liable for any consequential damage or loss.
When first turning on the rear panel power switch, the red STANDBY LED on the front panel will illuminate,
indicating that all channels are in standby mode. When in standby, the signal is muted and the output bias of
each channel is reduced to approximately 10 percent. The SURROUND LED on the front panel will
illuminate green, indicating that all channels, regardless of which buss they are assigned to, will come on
when the amplifier is taken out of standby.
The two front panel buttons operate independently. The STANDBY button toggles between standby and
operate. When in standby, the front panel STANDBY LED will be red and when out of standby, this same
LED will be green. The SURROUND button activates/deactivates the channel(s) that been assigned to the
surround buss via their rear panel switch. When the surround buss is active, the SURROUND LED on the
front panel will illuminate green. When the surround buss is inactive, the front panel SURROUND LED will
be off. The surround buss may be turned on or off regardless of whether the unit is in standby or operate.
The state of the surround buss is unaffected by the standby state.
Any number of channels can be selected to operate on either of the STEREO or SURROUND busses.
When the Dreadnaught has more than two channels installed in it, it is recommended that the front left and
right channels be set to STEREO and all remaining channels be set to SURROUND, via the rear panel
STEREO/SURROUND switch. In the STEREO mode (front panel SURROUND LED off), any channels set
to the STEREO buss will operate. In the SURROUND mode (front panel SURROUND LED illuminates
green), all channels will operate.
Single and Two channel Modules
The Dreadnaught can be loaded with any combination of channels. Those available are single (mono) and
two channel (stereo) modules. Each module can be set to operate individually on the stereo or surround
buss.
Note: The speaker output polarity on the single channel module is opposite of that on the two channel
module. The maximum spade lug thickness for the two channel module is 1/16”
Remote Triggers
When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse, the Dreadnaught will change its
state from either standby to operate, or operate to standby, depending on what the current state is.
When the rear panel SURROUND TRIGGER jack receives a 5-12 VDC pulse, the Dreadnaught’s surround
buss will change from its current status, either on or off.
Use a 1/8” (3.5mm) mono plug for these jacks.
RS232
RS232 is an option in the Dreadnaught. It can be installed at any time either at the factory or an authorized
Theta dealer. All functions of the Dreadnaught can be controlled and monitored via RS232, using either the
RJ45 or DB9 connector. As long as the rear panel power switch in turned on, the RS232 circuitry is always
active, thus allowing the Dreadnaught to be taken out of STANDBY via RS232.
8
Appendix A
Troubleshooting Guide
If the Dreadnaught should function abnormally during operation, please review the items in the following
checklist. Please be sure to thoroughly check all other connected components such as speakers,
preamplifiers, as well as cables.
Symptom
Possible Cause(s)
Remedy
No power or front panel
lights and no sound.
Power cable is not inserted 100% into AC
input connector.
Ensure that the AC cord is inserted all the
way into the Dreadnaught and that the wall
outlet is active.
Replace with same type and rating ONLY.
Check the AC outlet circuit breaker and reset,
if necessary, or contact your dealer.
Verify all switch settings to ensure that a
given channel is assigned to the correct buss.
Press the front panel SURROUND button
once. The SURROUND LED should be
illuminated green.
If the front panel THERMAL LED is
illuminated, shut down the Dreadnaught until
it cools. An external fan may be necessary.
Check the rear panel fuse indicator LEDS. If
one is on, an internal fuse is open.
Rear panel fuse is open.
Circuit breaker is open (AC outlet).
No audio output.
STEREO/SURROUND switch not set
correctly.
SURROUND buss is off, or in standby
Overheating
Plus or minus fuse is open.
Hot/Warm
Normal operation
9
Appendix B
Wiring Diagram
This section provides an example illustration of an input and output wiring scheme. In this example, the Dreadnaught
has 3 single channels and two 2 channel modules installed. Before making any connections, please turn off ALL audio
and video devices. Unplug those that do not have a main power switch. It is recommended that all cables, including
speaker cables be kept as short as possible for best sound quality.
Figure 5 - Examples of Typical Input and Output Connections
------------ = optional connection.
WARNING: Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground, and
cannot be connected to a ground or a loudspeaker system with a common ground. Consult your speaker
manufacturer to ensure that any speaker in your system that will be connected to the Dreadnaught does NOT have
internal circuitry with a common ground. Damage will occur if the negative terminal is connected to ground, or to a
terminal of another channel or module.
10
Appendix C
RS232 Protocol
RS232 settings are internally definable via jumper blocks, to accommodate interfacing with a wide range of control
products.
Baud rate
Echo status
Baud rate:
Echo status:
9600 or 19200
AUTO or REQUEST
Maximum number of bits per second. The duration of a single bit is equal to 1 / baud rate.
Specifies whether the STATUS of each parameter shown in the protocol will automatically (AUTO) be
echoed back to the controller when there is any change, or whether the user must manually request
(REQ) the status information be sent to the controller. Please refer to page 14 or information on
changing these settings.
All commands will follow the format:
<Header><Command Identifier><Argument 1><Argument 2><Argument 3>
where:
<Header> = <FEh><EEh>
<Command identifier> = <byte>
<Argument x> = <byte>
Each command will be able to access the system configuration directly, eliminating the need to press any button on
the Dreadnaught’s front panel.
Examples:
1) To select put the Dreadnaught into standby: Send FE, EE, 01, 00, 00, 00 (all values in Hex).
Where FE and EE are the header, 01 = command, 00 = main standby, 00 = put unit in standby and 00 = filler
(4 characters required)
2) To activate the Surround buss: Send FE, EE, 01, 01, 01, 00
Where FE and EE are the header, 01 = command, 01 = surround buss, 01 = activate surround buss and 00 =
filler (4 characters required)
11
Command
01
02
Description
Standby
Status
Argument 1
0
0
1
1
0
Argument 1 Description
Main standby
Main standby
Surround bus
Surround bus
Return amplifier status.
Argument 2
0
1
0
1
Argument 2 Desc
Argument 3 Arg 3 Desc
Put unit in standby
Take unit out of standby.
Make surround bus inactive.
Activate surround bus.
The RS232 can be set using a hardware jumper to automatically send changes to the RS232 port.
Status Byte # Byte Description
1
Bus
2
Temperature
3
Fuse Plus Rail
4
Fuse Minus Rail
5
Channel Sense
bit
0
1
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
Value Description
Main bus
Surround bus
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
12
RS232 Hardware Connections
RTS and CTS are not
implemented in Dreadnaught
DB9
RJ45
Pin
I/O
1 - DCD
0
2 - Dreadnaught sends on this pin
I/O
Pin
Jumped
1 - RTS
1
0
2 - DTR
1
3 - Dreadnaught receives on this pin
1
3 - Dreadnaught receives on this pin
1
4 - DTR
1
4 - GND
Jumped
5 - GND
5 - GND
6 - DSR
0
6 - Dreadnaught sends on this pin
0
7 - RTS
1
7 - DCD
0
8 - CTS
0
8 - CTS
0
9 - Ring
--CN2
CN3
5
9
8
7
6
4
Dreadnaught receives on this pin
3
GND
Dreadnaught sends on this pin
2
1
Rear panel view of DB9 connector
(From outside of unit).
Figure 6 – Dreadnaught RS232 Jack Pinout
13
REQ
9600
J4
C
STATUS
AUTO
BAUD
19200
SELECT
REQ
D
E
C
SELECT
SELECT
D
SELECT
STATUS
AUTO
BAUD
19200
E
SELECT
DREADNAUGHT
SELECT
9600
ABRACON
12.288MHz
Figure 7 – Dreadnaught RS232 Jumper Settings
RS232 Jumper Settings
There are 2 possible Baud rates: 9600 and 19200. The factory default is 19200. To change the baud rate to 9600,
move the jumper to the center and top pins (if the RS232 board is orientated as in figure 7).
The STATUS can be returned to the controller either: automatically every time a parameter has changed, or the user
can request it manually. The factory default is AUTO. To set the Echo STATUS to return Status information only
upon request, move the AUTO/REQ jumper to the top pins, or nearer to REQ on the RS232 board.
The three SELECT jumpers are not currently implemented.
14
Appendix D
Specifications
Inputs:
Analog audio:
1 Single-ended per channel (RCA) on each module type.
1 Balanced per channel (XLR) on each module type.
Input Impedance:
50 KΩ
Single-ended or Balanced, for each phase. (both modules)
Input sensitivity: Mono module: (Single-ended) 2.0V RMS input for 200W into 8 ohms.
(Balanced)
1.0V RMS input for 200W into 8 ohms.
Stereo module: (Single-ended) 1.5V RMS input for 100W into 8 ohms.
(Balanced)
0.75V RMS input for 100W into 8 ohms.
Gain:
Mono Module: (Single-Ended) 26dB (19x).
(Balanced)
32dB (38x).
Stereo Module: (Single-Ended) 25.5dB (17x).
(Balanced)
31.5dB (38x).
Polarity: (Single-ended) Non-Inverting.
(Balanced) Pin-2 = Positive, Pin-3 = Negative for Non-Inverting Output.
Outputs:
Analog Audio:
I/O
RS232: 1 DB9 and 1 RJ45 connector.
Modes/Processes:
1 balanced output per channel.
Standby, Stereo and Surround. Channels may be individually assigned to either buss.
Power Output: Mono Module:
Stereo module:
(8 ohms-one channel driven)
(8 ohms-five channels driven)
(4 ohms-one channel driven)
(8 ohms-one to ten channels driven)
(4 ohms-one channel driven)
200 W (rated)
200 W (rated)
400 W (rated)
100W (rated)
200W (rated)
250 W (typical)
210 W (typical)
440 W (typical)
115W (typical)
210W (typical)
Frequency Response:
(-3dB points @ full power) 0.3Hz - 250 kHz.
THD+Noise:
Mono module: <1%
Stereo Module: <1.25% (both channels driven into 100W @ 8 ohms).
Signal to Noise Ratio:
(unweighted) >100dB
Power Requirements:
117 VAC, 18 amp, 230 VAC, 9 amp; 50-60 Hz, 20 amp for full power in all channels.
Power Consumption:
No. of 1 ch. No. of 2 ch. Total no. of STANDBY
Modules
Modules
channels
2
3
4
5
1
1
1
1
2
2
2
3
3
4
2
3
4
5
1
2
3
4
1
2
3
1
2
1
2
3
4
5
4
6
8
10
3
5
7
9
4
6
8
5
7
6
75W
100W
125W
150W
90W
120W
150W
180W
85W
115W
145W
175W
105W
135W
165W
130W
160W
155W
IDLE
All chs. at rated
power into 8 ohms
125W
175W
225W
275W
145W
205W
265W
325W
135W
195W
255W
315W
185W
245W
305W
235W
295W
285W
750W
1020W
1230W
1440W
860W
1275W
1690W
2080W
805W
1210W
1615W
2020W
1155W
1560W
1965W
1425W
1830W
1635W
Trigger Inputs:
5-12 VDC Pulse between 1 and 500mS. (1/8” (3.5mm) mono jacks).
Dimensions:
17 5/8” W x 8 7/16” H x 23 1/2" D (448 x 214 x 597 mm)
Weight:
100 Lbs. Stand alone (45.4 Kg), 115 Lbs. Boxed with accessories (52.2 Kg)
Maximum Operating Temperature:
Internal: 176° F (80° C)
Room: 122° F (50° C)
15
90 DAY LIMITED WARRANTY TERMS AND CONDITIONS
(3 Year optional extended service contract)
1.
Theta Digital Corporation, henceforth referred to as Theta, warrants the product designated herein to be free of
manufacturing defects in material and workmanship, subject to the conditions set forth herein, for a period of 90 days
from the date of purchase by the original purchaser, henceforth referred to as purchaser. If the purchaser registers the
unit with Theta by mailing in the warranty card, together with a copy of the bill of sale, within 14 days of the date of
purchase, said purchaser will be registered for an extended service contract. The extended service contract extends
the 90 days to a period of 3 years from the date of purchase by the original purchaser or no later than 7 years from the
date of shipment to the authorized Theta dealer, whichever comes first.
2.
CONDITIONS
This warranty is subject to the following conditions and limitations. The warranty is void and inapplicable if the product
has been used or handled other than in accordance with the instructions in the owner's manual, abused or misused,
damaged by accident or neglect or in being transported, or if the defect is due to the product being repaired or
tampered with or modified by anyone other than Theta or an authorized Theta repair center. In the unlikely event that
the unit requires service, contact Theta for an RA (Return Authorization) number. The product must be packed and
returned to Theta or an authorized Theta repair center by the customer at his or her sole expense. Theta will pay
return freight of its choice. A returned product must be accompanied by a written description of the defect, a photocopy
of the original purchase receipt, and a daytime phone number where the owner can be reached. The unaltered receipt
must clearly list model and serial number, the date of purchase, the name and address of the purchaser and authorized
dealer and the purchase price. Theta reserves the right to modify the design of any product without obligation to
purchasers of previously manufactured products and to change the prices or specifications of any product without
notice or obligation to any person.
3.
REMEDY
In the event the above product fails to meet the warranty, and the above conditions have been met, the purchaser's
sole remedy under the limited warranty shall be to obtain an RA number and return the product to Theta or an
authorized Theta repair center where the defect will be rectified without charge for parts or labor.
4.
LIMITED TO ORIGINAL PURCHASER
This warranty is for the sole benefit of the original purchaser of the covered product and shall not be transferred to a
subsequent purchaser of the product.
5.
DURATION OF WARRANTY
This warranty expires 90 days after the date of original purchase. If Theta receives the completed warranty registration
card within 14 days of original purchase, this period is extended to the third anniversary of the original date of purchase
or no later that the seventh anniversary of the shipment to the authorized Theta dealer, whichever comes first.
6.
MISCELLANEOUS
ANY IMPLIED WARRANTIES RELATING TO THE ABOVE PRODUCT SHALL BE LIMITED TO THE DURATION OF
THIS WARRANTY. THE WARRANTY DOES NOT EXTEND TO ANY INCIDENTAL OR CONSEQUENTIAL COSTS
OR DAMAGES TO THE PURCHASER. Some states do not allow limitations on how long an implied warranty lasts or
an exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply
to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
7.
WARRANTOR
Inquiries regarding the above limited warranty may be sent to the following address:
THETA DIGITAL CORPORATION
5330 DERRY AVENUE, SUITE "R"
AGOURA HILLS, CA 91301
WARRANTY OUTSIDE THE USA
Theta has formal distribution in many of the countries of the free world, in each country the Theta Importer has
contractually accepted the responsibility for product warranty. Warranty service should normally be obtained from the
importing dealer or distributor from whom you obtained your product.
WARNINGS
1. To prevent fire or shock hazard, do not expose your Theta product to rain or moisture.
2. This unit contains voltages which can cause serious injury or death. Do not operate with covers removed. Refer all
servicing to your authorized Theta dealer.
3. For continued protection against fire hazard, replace fuses only with the same type and rating of fuses as specified.
16
GB102c
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