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Tube-Tech CM 1A (Demo Deal)

Modular, optical tube based compressor for use in RM8 or RM2 rack - based on CL1B

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  • Free Tech Support
  • Free Extended Warranty

What is a Demo Deal Item?
In just about every case, a Demo Deal item is in nearly mint-condition but has be taken out of the box so a customer could take a look at it or try it for a few days. Because it is no longer factory-sealed, we offer it to you at a special price with full manufacturer’s warranty.

Regular Price: $1,399.00
Save 7.4%: -$104.00
Sale Price: $1,295.00

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Product Description
Additional Information
  • Product Description

    The Tube Tech CM 1A Compressor is an optical, all tube based compressor targeted at single-track recordings: It is equally suited for delicate vocal recordings, as well as critical instrument recordings such as lead guitar, drums, bass etc.

    The CM 1A 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.

    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.


    • 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

    Note: This module requires the Tube-Tech RM8 or RM2 Rack

  • Additional Information

    Condition Demo Deal
    Channels Single-Channel
    Chassis Other Module
    Digital I/O No
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