IGS Audio Zen Stereo Compressor

That's all you need to compress your mix.
If you want your music sounds like yin n' yang, you need a ZEN.
The ZEN is unique. The construction is based on the legendary compressors used in Abbey Road Studios. It's the musical canon of art used by The Beatles. The ZEN Compressor audio circuit is based on 14 bi-polar transistors in each channel. The compression is achieved by 8 hand-matched Zener diodes biased by a perfect feedback circuit.


BASIC FEATURES
Compression type    Zener diodes
Stereo Link    Yes
HPF    Yes, 60, 90, 120, 240Hz
Hard wire bypass    Yes
All stepped manipulators    Yes
INPUT & OUTPUT
Input Impedance (balanced)    10k Ohm
Output Impedance (balanced)    75 Ohm
Audio transformers    Yes, IGS Custom, on inputs and outputs
LEVELS
Operating Level    +4 dBu
Dynamic Range    >100dB
Noise Level    -99dBu
Max. gain    36dB
Max Gain Reduction    -35dB
TIME CONSTANTS
Attack:    8 - 100 ms, x4 switchable
Ratio    Variable, depends on the input settings, plus Limiter
Release:    10 - 2000 ms, x4 switchable
BANDWIDTH
Frequency response    20 Hz - 20 kHz, +/- 0.1dB
DISTORTION (@ 20 HZ - 20 KHZ)
Signal to Noise Ratio    >90dB
THD+N    >86dB
IMD (SMPTE)    >90dB
Crosstalk    80dB @ 1kHz
FRONT PANEL
VU Meters    Yes, GR in dB's, left & right,
POWER
Voltage    Selectable 115/230 VAC
Power consumption    <30 VAC
Power supply    Linear, internal
PACKING BOX
Dimensions    19" unit
Shipping weight    9 kg / 5 lbs
OTHERS
Used for    Mastering, tracking