Compressor / Gate

The Tube Tech CL 1B is a single channel compressor, with tube amplifier. Released in the audio market in 1991, the CL1B has become a reference in professional studios around the world. This is the "go-to" compressor for LA and Nashville voices and basses. It offers velvety and musical compression while preserving the clarity of the source, even when pushed to the bottom.

ARTICLE N° 57579
  • Tube Tech CL 1B Single channel compressor, with tube amplifier.
  • Analog technology, with lamps.
  • Very low distortion gain reduction circuit.
  • Tube Push-Pull Amplifier.
  • Possibilities of interconnections of several units.
  • Vu-meter control for input and output levels as well as for compression.
  • Parameterizable attack and return.
  • Gain from - inf to +30 dB.
  • Threshold of +20 dBm at -40 dBm.
  • Switch in / out silencer.
  • Format 3U.
  • Technical characteristics:
  • Input impedance: 600 Ohms.
  • Output Impedance: <60 Ohms.
  • Frequency response at -3 dB: 5 Hz to 25 kHz.
  • Distortion (THD + N at 40 Hz) at 0 dBU: 0.15%.
  • Distortion (THD + N at 40 Hz) at +10 dBU: 0.15%.
  • Distortion (THD + N at 40 Hz) at +26 dBU (max output level) <1%.
  • Distortion (THD + N at 40 Hz) at +21 dBU (max input level) <1%.
  • Noise (Rg = 200 ohms), gain at 0 dB: +30 dB.
  • Noise (Rg = 200 ohms), 22 Hz to 22 kHz at <-85 dBU <-75 dBU.
  • Noise (Rg = 200 ohms), CCIR-468-4 at <-75 dBU <-65 dBU.
  • Crosstalk at 10 kHz <-60 dB.
  • CMMR at 10 kHz <-60 dB.
  • Gain: Off to +30 dB.
  • Compression> ratio: from 2: 1 to 10: 1.
  • Compression> Threshold: Off to -40 dBU.
  • Compression> Attack: 0.5 to 300 ms.
  • Compression> release: from 50 ms to 10s.
  • Lamps: 1 x ECC82 and 1 x ECC83.
  • Power Consumption at 115/230 V, 50/60 Hz: 22 watts.
  • Dimensions (HxWxD): 88 x 483 x 170 mm.
  • Weight 5.9 kg.
Peak limiter
 No
Gate
 No
Lamps
 Yes
Audio outputs
 1 x XLR
Vu-meter
 Yes
Power supply
 Mains powered
Adjustable Attack / Release
 Yes
19" rack
 3U