TUBE TECH - CL 1B

TUBE TECH - CL1B

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.

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

Specifications:

• Input impedance: 600 ?
• Output impedance: < 60 ?
• Gain:  0-30 dB

Distortion (THD @ 40 Hz):

• OdBm: <0.15%
• +10 dBm: < 0.15 %
• Max. output (THD 1 %): > +26 dBm
• Max. input (THD 1 %):  > +21 dBm
• Noise (Rg= 200 . ?)
• Gain: 0 dB +30 dB
• Unweighted: < -85 dBm < -75 dBm
• CCIR 468-3: < -75 dBm < -65 dBm

Frequency response:

• Lower: < 5 Hz
• Upper: > 25 kHz
• CMRR (@ 10kHz): > 60 dB
• Tubes:  1 x ECC 82
• 1 x ECC 83

Dimensions:

• Width:   19 inch
• Height:  3 units
• Depth:  170 mm
• Weight:  4.1 kg