COMPO Specifications

The enhanced compressor/limiter shall be a dual channel unit in a steel chassis six inches deep and one rack unit high. There shall be a front panel switch to link the channels to track as a stereo pair. 
Each channel shall have a pair of LEDS for indicating Above or Below Threshold, and a 5 segment LED Gain Reduction display, plus variable controls for Threshold, Ratio and Output Gain. Attack and Release times shall be program dependent. Each channel shall also have a hardwire Bypass switch on the front panel, and a switch to control the Enhance circuit. This circuit shall provide Low frequency enhancement at 50 Hz, and High frequency enhancement at 10 KHz.
The unit shall have electronically Balanced inputs and outputs, on both TRS jack and XLR type connectors, with passive RFI filters and an Input impedance of 20 Kohms (10 Kohms unbalanced). 
The Input headroom shall be +22dB, with a CMRR of better than 45dB, and the frequency response shall be 20 Hz to 20 KHz, ± 0.5dB. 
The Output impedance shall be 300 ohms (150 unbalanced), and the maximum Output level shall be +20dB, with a Signal to Noise ratio of -93dB ‘A’ weighted (–88dB unweighted). The Sidechain points shall be TRS jack connectors and have an impedance of 10 Kohms. T.H.D shall be 0.03% @ 0dB, 1 KHz, and the unit shall have a dynamic range of 108dB.
AC Power shall be supplied via a removable mains cable, connecting to an IEC connector with an integral fuse and voltage change switch on the unit’s rear panel.
The compressor/limiter shall be the ARX COMPO.