TUBE-TECH CM1A

TUBE-TECH CM1A Description

The TUBE-TECH CM 1A Compressor features an optical 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.

A tube-based push-pull amplifier follows the gain-reduction element with variable gain up to 30 dB. A dedicated Bus selector with three positions (Off, Link 1, Link 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. Input and Output is transformer balanced as well as fully floating.

TUBE-TECH CM1A Features

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

TUBE-TECH CM1A Specifications

• 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 
  22 Hz-22 kHz: < -85 dBu
  CCIR-468-4: < -75 dBu
• CMRR @ 10 kHz: < -60 dB
• Max. output @ 1 % THD+N: > +26 dBu
• Gain: off to +30 dB
• Compressor
  Input: 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
• Dimensions
  Height:3 units 176 mm 6.93"
  Width: 500 mm 1.97"
  Depth: 220 mm 8.66"
• Weight
  Net: 1.2 kg 2.6 lbs.
  Shipping: 1.8 kg 4.0 lbs.
• Power requirements
  12 W