Smooth musical detail and sonic excellence, Minimum audio signal path, Pure Class A, 100% discrete design, Dual mono or Stereo operation, Transparent, non-invasive compression, Very low noise -94dB, High headroom +30dB, Fully balanced inputs and outputs, Long lasting, stainless steel hardware, External 150W toroidal power supply, 100% discrete power supplies for audio path, All signal routing w/sealed silver relays, External side-chain access XLR, Low distortion less than 0.5% THD and IMD, Wide bandwidth -3dB 1Hz to 450kHz, Large accurate professional VU meters, Variable threshold, ratio, attack & release, DC coupled, no transformers in audio path, Fully balanced inputs and outputs.