The CL22 is a professional 19" compressor/limiter/gate designed to control the dynamic range of the signal, allowing more overall sound volume before distortion. An enhancer on each channel helps restore high frequencies under heavy compression. Also useful for protecting loudspeakers by curtailing the output once it reaches a preset threshold level. The gate helps to reduce noise in silent passages.Dual or stereo linked compressor/limiterExpander/gate on each channelVariable or Auto attack/release timesEnhancer on each channelBalanced and unbalanced inputs and outputsBypass switch for processed/unprocessed comparisonLED attenuation metersPower supply 115/230Vac, 50/60Hz (IEC)Connectors : bal/unbal XLR or 6.3mm jack inputs and outputs L+RInput impedance : balanced 50k OhmsInput impedance : unbalanced 25k OhmsOutput impedance 60 OhmsOperating level +4dBu/-10dBV, switchableFrequency response 20Hz-20kHz (+0/-0.5dB)Signal to noise ratio >95dBuCrosstalk