Smooth Recording Solution In-A-Box
Following the path of success shown by our much-acclaimed TUBE-TECH SMC 2B Stereo Multiband Compressor, we are proud to introduce our latest technological achievement: A full-blown microphone preamplifier & multiband compressor with outstanding sonic properties – the MMC 1A.
Product Description
The MMC 1A is our latest recording channel – encompassing a complete front-end it includes an additional Direct Instrument input as well as a separate line input. The microphone input has switchable loading impedance, phantom power, phase reversal and a –20 dB Pad. All inputs are equipped with a low-cut filter.

The 3-band optical compressor is designed to maintain optimum summing of all three bands with a remarkably flat frequency response. A bypass switch shorts out the whole compressor.

Mic. Input/Output are balanced and have fully floating transformers with a static screen. The Line Input is unbalanced, but an optional transformer is available.

The power supply and the sidechain circuits are based on a solid state circuit. With the exception of the output stage all DC voltages are stabilised.
Key Features
  • Mic. Gain in 2 dB and 10 dB steps
  • Selectable mic. impedance 600/1200/2400
  • Phantom Power (+48V)
  • Phase reversal
  • 20 dB pad
  • High impedance Direct Input
  • Separate line input (gain +/- 10 dB)
  • Lowcut filter (20 Hz / 40 Hz/off)
  • Optical gain reduction elements
  • Cont. variable Threshold, Attack, Release
  • Ratio 2:1 to 10:1
  • LED display showing gain reduction
  • Low, Mid, High Output Gain: off to +10 dB
  • Variable X-over frequencies
  • Low noise < -80 dBu @ 0 dB gain
  • Master Output Gain: off to +10 dB

  • Impedance
    Mic. Input: 600/1200/2400 ohm
    Input, DI: < 1 Mohm
    Line input: 20 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 %
    Max. output: : +26 dBu < 1 %
    Max input: +21 dBu < 1 %

  • Noise Mic. Rg=200 ohm
    Gain: +20 dB, +60 dB
    22Hz-22kHz: < -80 dBu, < -60 dBu
    CCIR-468-4: < -70 dBu, < -50 dBu

  • Noise Line Rg=200 ohm
    Gain: 0 dB, +10 dB
    22Hz-22kHz: < -80 dBu , < -75 dBu

    CCIR-468-4: < -70 dBu, < -65 dBu

  • Noise DI Rg=1 Mohm
    Gain: 0 dB, +50 dB
    22Hz-22kHz: < -80 dBu, < -50 dBu
    CCIR-468-4: < -70 dBu, < -40 dBu

  • CMRR @ 10 kHz: < -60 dB
  • Gain:
    Mic: +10 dB to +70 dB
    Line: -10 dB to +10 dB
    DI: 0 dB to +60 dB
    Low, Mid & High band: off to +10 dB
    Output: off to +10 dB

  • X-over frequencies x1 x4
    Low & Mid band: 60 to 300 Hz 0,24 to 1,2 kHz
    Mid & High band: 1,2 to 6 kHz

  • Compressor
    Ratio: 2:1 or 10:1
    Threshold: off to 20 dBu
    Attack: 3 ms to 200 ms
    Release: 60 ms to 2 s

  • Tubes
    ECC 81 4 pcs.
    ECC 82 1 pcs.
    ECC 83 1 pcs.
  • Dimensions
    Height: 2 units 88 mm 3,5"
    Width: 483 mm 19,0"
    Depth: 205 mm 8,1"

  • Weight
    Net: 5,3 kg 9,5 lbs.
    Shipping: 6,1 kg 13,4 lbs.

  • Power requirements
    @ 115 V/230 V, 50-60 Hz: 30-45 W


Copyright © 2005 AudioPro International Inc. All rights reserved.