The Warm Audio WA-2A is a transformer-balanced, high-voltage, opto (light-controlled) all-tube compressor with a completely discrete signal path and through-hole component topology. It features custom, large-core Cinemag USA input and output transformers, four premium vacuum tubes, and Kenetek opto-cells.

• USA-made CineMag input and output transformers
• USA-made Kenetek T4B opto attenuator. Socketed to allow for retro-fitting with vintage (or other) opto-cells
• Premium Tung-Sol and Electro-Harmonix tubes. 2 x 12AX7, 1 x 12BH7, 1 x 6AQ5 (or 6P1 - interchangeable)
• Variable Pre-emphasis knob (via the back-panel) allows for compression hi-pass filtering
• Stereo-link capability via TRS connector and knob on back panel

• XLR and TRS balanced line level inputs - 600 Ω impedance
• XLR and TRS balanced line level outputs - 600 Ω impedance
• Frequency Response +/- 1 dB, 15 Hz to 20 kHz
• Gain 40 dB +/- 1 dB
• Input Level + 16 dB maximum
• Output Level +10 dB nominal, + 16 dB maximum
• Distortion Less than 0.5 % THD at +/- 10 dBm
• Noise = - 74 dB
• 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" rack-mount chassis, 2U
  • 19" x 7" x 3.5"
• Weight: 12 lbs.
• Note: further information can be found within the "WA-2A User Manual" under the "Documentation" tab above.