SNDC6 DUAL LIMITER COMPRESSOR  SPECIFICATIONS Input: 10 k ohms Bridging & Transformer balanced Gain nominally 0 dB with +/- 2 dB Gain Variation with rear panel control. Output: Transformer balanced 600 ohms Max output + 26 dB Frequency Response: +/- 0.5 dB 20 Hz to 20 kHz. Noise: > 75 dB (no Gain Make up) 20 Hz to 20 kHz Distortion: 0.05% at 1 kHz and +9 dB (comp & Limiter switched out)   This is basically a pair of the Shep SNC6 single Limiter Compressors, packaged into a 2 U high package and complete with a Mains power supply. It can be used as two single channel compressors or linked using the Stereo linking Toggle switch to control a Stereo signal. The power supply is switch selectable for use on 220/240 or 120 volts ac. It is suitable for Sound Broadcasting and Recording Studios. FRONT PANEL CONTROLS Limit Threshold, switched attenuator +4 dB to +15 dB in 1 dB steps. Limit Recovery, switchable 50 mS, 100 mS, 200 mS, 800 mS, Auto 1 = 100 mS / 2 sec., Auto 2 = 50 mS / 5 secs. Compression Threshold, switched in 2 dB steps, -20 dB to + 10 dB Compressor Recovery Time, switchable 100 mS, 400 mS, 800 mS, 1.5 secs. Auto 1 = 100 mS / 2 secs., Auto 2 = 50 mS / 5 secs. Compression Ratio, switchable 1.5, 1.0, 2.1, 3.1, 4.1, 6.1 Gain Makeup, 0 dB to 20 dB of extra gain when Compress is selected. Limit in / out Toggle Compress 1n /out Toggle By-pass Toggle Stereo / Quad Linking Toggle Meter Reads, Input, Output or Gain Reduction selected by Toggle switch