Four Channel Compressor/Limiter with Gating

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The S com4 provides four channels of dynamics processing with an expander/gate and compressor/limiter on each channel. The four channels operate independently or in stereo pairs.

The compressor/limiter section of the S com4 includes variable threshold, ratio and output levels. The expander/gate section features a continuously variable threshold control as well as a switch for fast or slow release times. An enhancer switch restores high frequencies that are sometimes diminished by heavy compression.

Multi-segment LED metering on theS com4 displays input/output level, as well as gain reduction. Balanced inputs and outputs, with +4dB or -10dBV operation allows the unit to interface into any professional environment.

  • Four channel compressor/limiter, expander/gate with enhancer
  • Individual compression threshold and ratio controls on each channel
  • Expander/Gate with variable trigger control and switchable fast/slow release

Smart Knee Detector

  • SKD circuit switches from soft to hard knee based on the level of input signal applied
  • 5 Segment LED meters for input/output levels and gain reduction on each channel
  • LED's on the gate show gate position open or closed


Function: Compressor/Limiter with Expander/Gate
Number of Channels: 4
Inputs: 4 x XLR, 4 x 1/4" TRS phone
Output: 4 x XLR, 4 x 1/4" TRS phone
Maximum Input Level: +21dBu
Compression Threshold: -40dBu to +20dBu
Compression Ratio: 1:1 to infinity:1, variable
Attack Time: Auto: Variable 0.3ms/20 dB to 300ms/20 dB
Release Time: Auto: Variable 0.05 to 5 Sec
Gate Threshold: Off to +10dB
Gate Rate: Release: Fast or Slow
Maximum Output Level: +21dBu
Make-up Gain: -20dB to +20dB
Frequency Response: 20Hz to 20kHz
Dynamic Range: 95dBu
Dimensions: 1U rack mount, 7 3/4" deep
Specialties: Unit will operate at either +4dB or -10 dB, switchable

Four channels linkable as two stereo pairs 
Samson S Com 4
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