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A veritable tool box of dynamics processing, SQ1D provides 8 channels of either compression or gating in a compact 3U high rack unit. This tightly integrated form factor allows the channels to be used together with ease, and includes highly flexible options for channel linking and side chain filtering and monitoring. SQ1D features multiple compression modes with combinations of RMS and Peak sensing and Hard and Soft Knee characteristics, ideal for both corrective and creative dynamics processing. In conjunction with the fully-featured noise gate and side chain options, one SQ1D can replace multiple other dynamics processors with considerable savings in space, weight and cost, with the confidence of knowing that whatever the application, SQ1D is more than capable of providing the required dynamic control of signal levels.

More Information

  • High-performance frequency-selective compression and gating with comprehensive control options
  • Intelligent Threshold Shift (iTS) gate hysteresis to avoid re-triggering by low frequency signals
  • Flexible channel linking allows multiple combinations of side chain summing to preserve stereo images
  • Solo bus allows monitoring of the side chain control signals without affecting channel outputs
  • RMS and "Vintage" peak-sensing compressor modes
  • Soft or hard knee compressor response
  • Side chain band-pass filter allows frequency-selective compression or gating for creative and corrective control
  • External side chain input on balanced 1/4" TRS connector for each channel
  • Electronically balanced inputs and outputs on Neutrik* XLR connectors
  • Rugged 3U rackmount chassis for durability in portable applications
  • Auto-ranging universal switch-mode power supply
  • Designed and engineered in the U.K.

Technical Specification


Function Compressor/Gate
Number of Channels 8
Inputs 8 x XLR
8 x 1/4"TRS phone, External Sidechain
Outputs 8 x XLR
Maximum Input Level Not specified by manufacturer
Compression Threshold -50dB to +25dB
Compression Ratio 1:1 to infinity
Attack Time 100µs to 20ms
Release Time 50ms to2.5s
Gate Threshold -50dB to +25dB
Gate Rate Attack:
10µs to 10ms


2ms to 2s
Maximum Output Level +22dBu into >2kΩ
Make-up Gain 0dB to +30dB
Frequency Response 20Hz to 20kHz, +/-0.5dBu
Dynamic Range >117dB, unweighted (20Hz to 20kHz)
Noise Noise Floor: <-95dBu @ unity gain
Dimensions 19 x 8 x 5.25" (483 x 205 x 133mm)
Weight 9.7lbs (4.4 kg)
Specialties Universal internal power supply
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