Owner`s Manual TSD-ML22VCA 2x2 Mic/Line Preamp

Owner`s Manual TSD-ML22VCA 2x2 Mic/Line Preamp
Owner’s Manual
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
–1–
Specifications are subject to change without notice.
AtlasSound.com
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Description
The Atlas Sound TSD-ML22VCA is a 2 input, 2 output true VCA with enhanced features including
a high quality microphone pre amplifier. VCA’s inserted prior to amplification provides a far more
efficient solution than transformer-based attenuators for volume adjustment in high power music
applications. The dual channel design can provide level control for two separate discrete zones or
stereo sources and is perfect for use in sports bars, restaurants, hotels or other installations.
The TSD-ML22VCA also provides two high quality, low noise mic pre-amps, which allows
simplification of designs that require remote microphone level adjustment. Switchable phantom
power is provided for powering condenser microphones and a 12dB/octave @ 125Hz high pass filter
is available on each mic input to minimize bass rumble and low frequency feedback in the system
ensuring focus and clarity for the voice spectrum.
The TSD-ML22VCA is part of a full line of Atlas Sound Time Saving Devices. These compact (1.5" x 4" 2.75")
units are designed to solve some of the common audio system problems in the easiest and in the
most efficient and cost-effective way. All models are made from high quality components and include
removable individual I/O connectors for quick and precise wiring, separate ground terminals for all
I/Os assuring secured connections, and removable level controls that can be replaced with
tamper-proof security covers. The TSDs are highly efficient and meet Energy Star™ standards as one
24V DC power supply (available separately) can power multiple Atlas Time Saving Devices.
Features
Audio Applications
• Two (2) Selectable Balanced Mic or Line
Inputs
• High Gain Mic Input 50dB
• 12dB/Oct @ 125Hz Low Cut Filter Per Input
• Phantom Power Per Input
• Two (2) Balanced Mic/Line Outputs
• Separate Channel VCAs for Remote Level
Control via Wall Plate or Programmable
External DC
• Input Peak Indicator Per Channel
• Input Signal Indicator Per Channel
• High Gain Output for Long Distance
Applications
• Cable Management System
• Multiple Mounting Configurations
• Separate Ground Connections
• Removable Phoenix Style I/O Connectors
• Security Covers Included for All Front
Panel Controls
• Meets Energy Star™ Standards
• Compact Chassis Design
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Mic Preamp
Line Preamp
Line Drive
Choirs
Remote System Controller
Installation
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Churches
Restaurants
Sports Bars
Schools
Industrial Facilities
House of Worship
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com
–2–
Specifications are subject to change without notice.
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Front Panel Description
6
6
4
5
3
6
6
1
2
1. Input 1-2 Level Controls - Adjusts the gain of the independent input signals. Turn clockwise to increase the signal level and counter-clockwise to decrease it. Note: The Input Level Control knobs can be removed and replaced with a supplied security cover to prevent unauthorized adjustment.
2. Output 1-2 Level Conrols - Adjusts the gain of the independent output signals. Turn clockwise to increase the signal level and counter-clockwise to decrease it. Note: The Output Level Control knobs can be removed and replaced with a supplied security cover to prevent unauthorized adjustment.
3. Power LED - Illuminates Blue when 24VDC is present.
4. Input Peak LEDs - Illuminates Red when the input signal reaches 3dBV below when signal clipping will occur. Occasional flashing is normal but if this indicator is continuously On, then reduce the
input level using the output level controls on the front panel. There is an LED for each input channel.
5. Signal LEDs - Illuminates Green when the input signal strength reaches 25mV to verify a signal path. There is an LED for each input channel. Note: The LED will not illuminate if the output Level is turned Off.
6. Bracket Retainer Points - Each TSD includes two mounting brackets for securing the TSD to a
cabinet or wall. Remove screws and align the bracket with the panel hole before firmly tightening the screws.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
–3–
Specifications are subject to change without notice.
AtlasSound.com
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Rear Panel Description
5
5
5
5
1
2
3
TSD Input/Output connections are removable for easy system wiring. The connector has a 3.5mm
pitch between pins.
1. DC Power Input - Each TSD that requires DC power comes with a 2 position connector for an external 24VDC power supply (sold separately). Because of the TSD’s low power consumption, a single external power supply may power more than one TSD. Please refer to the specifications on current requirements in milliamps to match with the appropriate power supply. Note: It is
acceptable to exceed the current requirements of the TSDs but NOT safe to use a power supply that is below the current requirement of the device.
2. Balanced Mic/Line Input 1-2 - Connects to balanced line or mic level sources. Your connection
must be mated properly to the input connector or signal loss and/or noise may occur. For gain or source input type selection, refer to the “Dip Switch Function Identification” chart for proper input setting. Note: Unbalanced line level inputs can be inserted with proper wire configuration by connecting the (G) and (-) terminals together.
3. Balanced Mic/Line Output 1-2 - Provides output when an input signal is present for connection to balanced mic or line level devices. Your output connections must be connected properly to
the connectors or loss and/or noise may be introduced into the signal. For gain or source input type selection, refer to the “Dip Switch Function Identification” chart for proper output setting.
Note: Unbalanced line level devices can be used with proper wire configuration by connecting the (G) and (-) terminals together.
4. VCA - Remotely control the audio levels via VCA technology. Connect one side of a 10K linear taper pot to the terminal marked DC10V, the other side of the pot to the (G) terminal, and the wiper to the Control 1 terminal. Set the switch to the correct channel terminal. Control 1 will adjust input channel 1 and Control 2 will adjust input channel 2.
5. Cable Management Retainer Points - Each TSD includes two cable retainer straps for securing
the included cable management retainers. Remove one of the rear panel screws, align the panel hole with a retainer and firmly tighten the screws.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com
–4–
Specifications are subject to change without notice.
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Dip Switch Function Identification
SWITCH FUNCTIONS
Switch Position
• DIP SW # 1 - 24VDC Phantom Power applies power for condenser mic operation. Down
position is On.
• DIP SW # 2 - Input Mic or Line Select for input gain selection. Up position is Line, down position is Microphone.
• DIP SW # 3 - Low Cut Filter engages at 125Hz with a roll off rate of 12dB per octave. This filter
operates either in the Line or Mic mode and is available on each input. Ideal for vocal microphones to reduce low frequency energy and to increase intelligibility. Down position is On.
• DIP SW # 4 - Output Mic or Line Select for ouput gain selection. Up position is Line, down position is Microphone.
Knob and Security Cover
All front panel level controls feature a removable knob that can be replaced with an included security
cover. Follow these steps to prevent potentiometer damage or unwanted changes.
1. Knob Installation - Turn the potentiometer shaft fully counter-clockwise. Align the knob indicator to the lowest setting on the panel and the potentiometer shaft slot. Carefully press the knob onto
the potentiometer shaft. Do not force or damage may occur to the potentiometer.
2. Security Cover Installation – Remove the knob from the panel and insert the cover. Do not force or
damage may occur to the potentiometer. Small pliers may be required to remove the knobs.
Mounting
There are three ways to securely mount this TSD:
1.Velcro™ - Each unit includes industrial grade Velcro™ with adhesive backing to adhere to any
flat surface.
2. Brackets - Each unit includes two mounting brackets to secure to a cabinet or wall.
3. Rack Mount Panel - The optional TSD-RMK rack mount panel supports up to four TSDs in a
1RU space.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
–5–
Specifications are subject to change without notice.
AtlasSound.com
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Block Diagram
INPUT 1 FUNCTION SET
1
2
3
4
PHANTOM
INPUT
MIC
LOW CUT
OUTPUT
OFF
LINE
OFF
LINE
ON
MIC
ON
MIC
1 2 3 4
MIC/LINE
MIC/LINE
LOW CUT
125Hz -12dB
+
INPUT 1 –
G
+ CHANNEL 1
–
OUTPUT
G
VCA
PEAK
SIGNAL
INPUT 1
LEVEL
OUTPUT 1
LEVEL
INPUT 2 FUNCTION SET
1
2
3
4
PHANTOM
INPUT
MIC
LOW CUT
OUTPUT
OFF
LINE
OFF
LINE
ON
MIC
ON
MIC
FROM VCA CTRL 10V DC
1 2 3 4
DC 10V OUT (20mA MAX)
CHANNEL 1 VCA CTRL
CHANNEL 2 VCA CTRL
GND
MIC/LINE
MIC/LINE
LOW CUT
125Hz -12dB
+
INPUT 2 –
G
MINI
PHOENIX
+ CHANNEL 2
–
OUTPUT
G
VCA
INPUT 2
LEVEL
PEAK
OUTPUT 2
LEVEL
SIGNAL
20 V TO PREAMP
POSITIVE REGULATORS
FILTER, ANTI-JAMMING
DC 24V
10 V TO VCA CTRL
Specifications
Description
2 x 2 Mic/Line Preamp with VCA Control
Chassis Color
Chassis Material
Black
Aluminum
Inputs
Type
Qty 2, Balanced Mic or Line Selectable
Connection
Removable 3 Position Captive Screw 3.5mm Spacing
Impedance1.2KΩ Balanced, 600Ω Unbalanced
Phantom
24VDC Defeatable
Low Cut Filter
125Hz/12dB Defeatable
Line Input Level
1V (0dBV) Balanced = 2V (+6dBV) Balanced Output,
Maximum Input 6V (+15dBV)
Mic Input Level
46dB Gain, 10mV (-40dB) Balanced = 2V (+6dBV) Balanced Output,
Maximum Input 40mV (-27dBV)
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com
–6–
Specifications are subject to change without notice.
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Outputs
Type
Qty 2, Balanced Mic or Line Selectable
Connection
Removable 3 Position Captive Screw 3.5mm Spacing
Impedance300Ω Balanced, 150Ω Unbalanced
Line Output Level
1V (0dBV) In = 2V (+6dBV), Maximum Output 6V (15dBV)
Mic Output Level
10mV (-40dBV) In = 80mV (-21dBV),
Maximum Output 300mV (-10dBV)
Controls
Input Level Control
Output Level Control
VCA Control Port
Dip Switch Function
Qty 2, Removable Knobs with Security Covers
Qty 2, Removable Knobs with Security Covers
Channel 1 & 2, +10VDC Return Design,
Removable 4 Position Captive Screw 3.5mm Spacing
• Qty 2, Phantom Power 24VDC
• Qty 2, Input Mic/Line Select
• Qty 2, Input 125Hz/12dB High Pass Filter
• Qty 2, Output Mic/Line Select
Indicators
Input Signal
Green, 25mV On Threshold, Qty 2
Input Peak
Red, -3dB Before Clip, Qty 2
PowerBlue
Electrical
Frequency Response
THD
Signal to Noise
20Hz - 20kHz (±1dB)
.06% & 1kHz
Line to Line: 85dBV
Mic to Line: 70dBV
Line to Mic: 55dBV
Mic to Mic: 55dBV
Mounting
Velcro™
Brackets
TSD-RMK
Cable Retainer
Industrial Grade, Included
Qty 2, Included
Optional 1 RU Rack Mount Panel (Supports 4 TSD Units)
Qty 2, Included
Power Requirements
Voltage24VDC
Power Consumption 70mA
Power Consumption 1.68W
Dimensions
H 1.5" (39mm) x W 4" (101mm) x D 2.75" (70mm)
Weight
6oz, .165kg
Accessories
TSD 24VDC Power Supplies
TSD-RMK 1 RU Rack Panel
Safety and Certifications
External Power Supply
cUL, CE, RoHS, TUV
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
–7–
Specifications are subject to change without notice.
AtlasSound.com
TSD-ML22VCA
2x2 Mic/Line Preamp & VCA
Owner’s Manual
Limited Warranty
All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or
commercial purchaser to be free from defects in material and workmanship and to be in compliance
with our published specifications, if any. This warranty shall extend from the date of purchase for
a period of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS
SOUND brand products except as follows: one year on electronics and control systems; one year on
replacement parts; and one year on Musician Series stands and related accessories. Additionally,
fuses and lamps carry no warranty. Atlas Sound will solely at its discretion, replace at no charge or
repair free of charge defective parts or products when the product has been applied and used in
accordance with our published operation and installation instructions. We will not be responsible
for defects caused by improper storage, misuse (including failure to provide reasonable and
necessary maintenance), accident, abnormal atmospheres, water immersion, lightning discharge,
or malfunctions when products have been modified or operated in excess of rated power, altered,
serviced or installed in other than a workman like manner. The original sales invoice should be
retained as evidence of purchase under the terms of this warranty. All warranty returns must comply
with our returns policy set forth below. When products returned to Atlas Sound do not qualify for
repair or replacement under our warranty, repairs may be performed at prevailing costs for material
and labor unless there is included with the returned product(s) a written request for an estimate
of repair costs before any nonwarranty work is performed. In the event of replacement or upon
completion of repairs, return shipment will be made with the transportation charges collect.
EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL
DAMAGES FOR PERSONAL INJURY, ATLAS SOUND SHALL NOT BE LIABLE IN TORT OR CONTRACT
FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTAL LOSS OR DAMAGE ARISING OUT OF THE
INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE WARRANTY IS IN LIEU OF
ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.
Atlas Sound does not assume, or does it authorize any other person to assume or extend on its
behalf, any other warranty, obligation, or liability. This warranty gives you specific legal rights and
you may have other rights which vary from state to state.
Service
Should your Atlas TSD require service, please contact the Atlas Sound
warranty department at 1-877-689-8055, ext. 1274 to obtain an RA number.
Atlas Sound Tech Support can be reached at 1-800-876-3333.
Visit our website at www.AtlasSound.com to see other Atlas products
©2010 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P.
All other trademarks are the property of their respective owners. ATS003944 RevA 9/10
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com
–8–
Specifications are subject to change without notice.
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