The WA76 Discrete Compressor is a modern reproduction of the Classic 1176 Revision D. The WA76 has a fully discrete signal path and uses the original Reichenbach Engineering's (now CineMag) transformer design. The classic 1176 was a major breakthrough in limiter technology, and used on hundreds of hit records since its inception. Engineers have craved the ultra-fast attack time and trademark sound of the 1176 for decades, and now it is finally affordable! True to the Classic 1176 compressor in design and performance Completely discrete signal path Modeled after the D revision Utilizes USA made CINEMAG input and output transformers Supports the famous "all buttons in" ratio setting Ultra fast attack time Class A line level output amplifier Input impedance - 600 ohms, bridges-T control (floating) Frequency Response ± 1 dB 20 Hz to 20kHz XLR and TRS inputs. XLR and TRS outputs 50db of gain Less than 0.4% total harmonic distortion from 50 Hz to 20 kHz with limiting Signal to noise ratio is greater than 74 dB at +25 dBm EIN -104.1 dbm Attack time, 20 microseconds to 800 microseconds Release time, 50 milliseconds to 1 second Meter provides dB gain reduction and dB output Internal power supply, external 24v AC power transformer 19″ Rackmount chassis, 2U 1-year warranty