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2x2 Mic/Line Preamp and VCA

Part #: TSD-ML22VCA
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MSRP: $320.99
Our Price: $257.99
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Top TSD-ML22VCA Specifications
  • Description: 2 x 2 Mic/Line Preamp with VCA Control
  • Chassis Color: Black
  • Chassis Material: Aluminum
  • Inputs
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Atlas Sound's TSD-ML22VCA is a 2 input, 2 output voltage-controlled amplifier (VCA) featuring a microphone pre-amplifier. Thinking ahead during your AV environment design? Consider using a VCA rather than a transformer-based attenuator for volume adjustment. The TSD-ML22VCA creates 2 discrete zones and provides level controls for each. This makes this VCA a great addition to places like restaurants and sports bars that have many displays. 

Fitted with high-quality, low-noise microphone pre-amplifiers, the TSD-ML22VCA simplifies your system. Switchable phantom power is provided for both mic inputs to facilitate condenser microphones. The high quality, low noise internal mic preamps ensure clarity and quiet operation without unwanted coloration. A 12dB / octave high pass filter @ 125Hz also is available on each input to minimize bass rumble and low frequency feedback.

This mixer requires a separately purchased power supply, however, multiple TSD units can be powered via a single power supply and requires 60mA of power. Other key features of the TSD-ML22VCA include the following:

  • True VCA for remote volume control of mic or line sources
  • 2 Mic/Line Inputs
  • All I/O via Phoenix-style connectors
  • Switchable 24V Phantom power
  • 12dB/octave low-cut gilter @ 125Hz
  • Input signal and peak LEDs
  • High gain output for driving long balanced lines
  • Separate ground connections
  • Security covers included for front panel controls


  • Type: Qty 2, Balanced Mic or Line Selectable
  • Connection: Removable 3 Position Captive Screw 3.5mm Spacing
  • Impedance: 1.2K Balanced, 600 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)
  • Outputs
  • Type: Qty 2, Balanced Mic or Line Selectable
  • Connection: Removable 3 Position Captive Screw 3.5mm Spacing
  • Impedance: 300 Balanced, 150 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: Qty 2, Removable Knobs with Security Covers
  • Output Level Control: Qty 2, Removable Knobs with Security Covers
  • VCA Control Port: Channel 1 and 2, +10VDC Return Design, Removable 4 Position Captive Screw 3.5mm
  • Spacing
  • Dip Switch Function: 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
  • Output Peak: Red, -3dB Before Clip, Qty 2
  • Power: Blue
  • Electrical
  • THD: .06% & 1kHz
  • Signal to Noise: Line to Line: 85dBV / Mic to Line: 70dBV / Line to Mic: 55dBV / Mic to Mic: 55dBV
  • Mounting
  • Velcro: Industrial-Grade, Included
  • Brackets: Qty 2, Included
  • TSD-RMK: Optional 1 RU Rack Mount Panel (Supports 4 TSD Units)
  • Cable Retainer: Qty 2, Included
  • Power Requirements
  • Voltage: 24VDC
  • Power Consumption: 70mA
  • Power Consumption: 1.68W
  • Dimensions: 1.5" (39mm) x 4" (101mm) x 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
  • Warranty: 3 years

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