Tube-Tech EQ 1AM Full Range Mastering Equalizer  

Item #: 
12747416287368224
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The Tube-Tech EQ 1AM is a full range one channel unit, featuring low & high cut, low & high shelving and three overlapping bands. The cut filters are designed around unity gain amplifiers and the shel... Read More

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Overview

The Tube-Tech EQ 1AM is a full range one channel unit, featuring low & high cut, low & high shelving and three overlapping bands. The cut filters are designed around unity gain amplifiers and the shelving and the bell filters are designed around two tube operational amplifiers.

The unit is all tube based except for the power supply. Input and output have fully floating transformers. All DC voltages are stabilized, except the anode voltage for the output stage.

The EQ 1AM Master Version Equalizer is fitted with rotary switches instead of pots for even more precise settings.

Features
  • Low cut at 6 frequencies: Slope 6 dB or 12 dB/octave
  • High cut at 6 frequencies: Slope 6 dB or 12 dB/octave
  • Band 1-3, bell type: 36 overlapping frequencies (12 per band), +/- 20 dB with variable bandwidth
  • Low shelving at 6 frequencies: +/- 15 dB
  • High shelving at 6 frequencies: +/- 15 dB
  • All switches gold plated
  • Conductive plastic potentiometers
  • Frequency response: 5 Hz to 60 kHz
  • Very low noise: Master bypass with clickless relay
  • All 7 sections fitted with separate in/out switch
Specifications
  • Impedance Input: 600 ohm
    Impedance Output: < 60 ohm
    Frequency response @ -3 dB: 5 Hz to 80 kHz
    Distortion THD+N @ 40 Hz: 0 dBu < 0.10 %; +10 dBu: < 0.10 %
    Noise Rg=200 ohm: Unweighted < -85 dBu; CCIR-468-4 < -75 dBu
    CMRR @ 10 kHz: < -60 dB
    Max. output @ 1 % THD+N: > +26 dBu
    Gain: 0 dB
    Tubes: ECC 81 3 pc, ECC 82 2 pc, ECC 83 3 pc
    Dimensions (H x W x D): 3.5" x 19.0" x 8.1" (88 mm x 483 mm x 205 mm)
    Weight: 12.1 lbs (5.5 kg)
    Power requirements @ 115 V/230 V, 50-60 Hz: 30-45 W
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