Tube-Tech CL-1B Optro-Cell Compressor, from Tube-Tech

Impedance

*Input: 600 ohm

*Output: < 60 ohm

*Frequency response @ -3 dB: 5 Hz to 25 kHz

*Distortion THD+N @ 40 Hz 0 dBu: < 0,15 % ,+10 dBu: < 0,15 %

*Noise:Rg=200 ohm

*Output Gain: @ 0dB +30 dB

*22 Hz-22 kHz: < -85 dBu < -75 dBu

*Max. output @ 1 % THD+N: > +26 dBu

*Gain: off to +30 dB

Compressor

*Ratio: 2:1 to 10:1

*Threshold: off to -40 dBu

*Attack: 0,5 ms to 300 ms

*Release: 0,05 s to 10 s

*Tubes: ECC 82 1 pc, ECC 83 1 pc

Product Description

The TUBE-TECH CL 1B Compressor features a gain-reduction element, positioned immediately after the input transformer. It is controlled by the sidechain amplifier, which also contain the two time control circuits - one for fixed and one for variable Attack/Release. The two time-controllers can either be used separately or combined. This circuit contains semiconductor OP-amps for the entire control.

The gain-reduction element is followed by a tube-based push-pull amplifier with variable gain up to 30 dB. A dedicated Bus selector with three positions (Off, Bus 1, Bus 2) is used whenever you want to link several compressors together. Input and output transformers have a static-screen between the primary and secondary wirings. Both Input and Output are balanced as well as fully floating.

Product Features

- Unique low distortion gain-reduction element
- All tube-based push-pull amplifier
- Multiple interconnection of several compressors via two busses
- VU-meter for monitoring input, compression and output
- Continuously variable attack and release time
- Gain Range (off to +30 dB)
- Variable Threshold (off to -40 dBu)
- Frequency response @ -3 dB: 5 Hz to 25 kHz
- Low noise: < -75 dBu @30 dB gain
- Clickless bypass relay