Warm AudioWA-2A Tube Opto Compressor / Limiter


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Warm Audio WA-2A

The goal behind the Warm Audio WA-2A was to bring the sound of the classic ‘2A style compressors to a more affordable price range. The unit features scouted tubes, meaning users can change them with other tubes for their own custom sound. 

Additionally, all the classic controls are there: limit/compress, meter, peak reduction, and output gain all have dedicated front panel controls for effortless tweakability. 

WA-2A Features

  • Transformer Balanced, High Voltage, Optotube Compressor
  • Socketed tubes to allow for retrofitting with other opto cells.
  • Variable pre-emphasis allows for compression hipass filtering
  • Stereo link capability
  • Premium input / output CineMag USA Transformers
  • USA made Kenetek opto attenuator
  • Tung-Sol and Electro Harmonix tubes - x2 12ax7, x1 12bh7, 1x 6aq5
  • Fully discrete signal path

  • XLR and TRS balanced line level inputs - 600 ohms impedance
  • XLR and TRS balanced line level outputs - 600 ohms impedance
  • Frequency Response +/- 1 dB, 15 Hz to 20kHz
  • Gain 40 dB ±1dB
  • Input Level +16 dB maximum
  • Output Level +10 dB nominal, +16 dB maximum
  • Distortion Less than 0.1% THD at ±10 dBm
  • Noise  = -74dB
  • Attack Time - 10 milliseconds
  • Release Time - 0.06 seconds for 50% release; 0.5 to 5 seconds for complete release
  • Meter shows both dB gain reduction and dB output
  • Power - 115/230 volts (switchable), 50/60 Hz
  • Dimensions - 19"" Rackmount chassis, 2U. 19"" x 7"" x 3.5""
  • Weight - 12 lbs
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Warm Audio WA-2A Tube Opto Compressor / Limiter Reviews