No Limits On Compression Warmth
The TUBE-TECH CL 2A Two-Channel Optical Compressor is an all tube based compressor / limiter targeted at two-channel studio recordings.
Product Description
The TUBE-TECH CL 2A Dual Compressor features two independent optical compressors. The optical gain reduction element is placed after the input transformer and then followed by an all tube-based output amplifier with a +10 dB gain. A switch with three positions (Link 1, Off, Link 2) is used whenever you want to use the two separate compressors in stereo mode or link several compressors together. The two link busses are identical.

Both Input and Output are balanced and have fully floating transformers with a static screen. The power supply and the sidechain circuit is based on a solid state circuit. With the exception of the anode voltage for the output stage all DC voltages are stabilized.
Product Features
  • Optical gain reduction element
  • Linkable for stereo applications
  • Dual VU-meters showing output or compression
  • Variable attack and release with a 1,5:1 to 10:1
  • Output Gain (off to +10 dB)
  • Frequency response @ -3 dB: 5 Hz to 60 kHz
  • Low noise: < -80 dBu @10 dB gain
  • Conductive plastic potentiometers
  • Gold plated switches
  • Clickless bypass relay
  • Impedance
    Input: 5 kohm
    Output: < 60 ohm
  • Frequency response @ -3 dB: 5 Hz to 60 kHz
  • Distortion THD+N @ 40 Hz
    0 dBu: < 0,15 %
    +10 dBu: < 0,15 %
  • Noise Rg=200 ohm
    Output Gain @ 0dB +10 dB
    22 Hz-22 kHz: < -80 dBu < -80 dBu
    CCIR-468-4: < -70 dBu < -70 dBu
  • Cross talk @ 10 kHz: < -60 dB
  • CMRR @ 10 kHz: < -60 dB
  • Max. output @ 1 % THD+N: > +26 dBu
  • Gain: off to +10 dB
  • Compressor
    Ratio: 1,5:1 to 10:1
    Threshold: off to -20 dBu
    Attack: 3 ms to 60 ms
    Release: 60 ms to 2 s
  • Tubes
    ECC 82 2 pc
    ECC 83 2 pc
  • Dimensions
    Height:2 units 88 mm 3,5"
    Width: 480 mm 19,0"
    Depth: 205 mm 8,1"
  • Weight
    Net: 5,8 kg 12,8 lbs.
    Shipping: 7,1 kg 15,6 lbs.
  • Power requirements
    @ 115 V/230 V, 50-60 Hz: 35 W


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