GML Model 2032
Product Overview:

Single Channel Microphone Preamplifier / Parametric Equalizer

The Model 2032 Microphone Preamplifier / Parametric Equalizer is a single-channel, multi-input device for high-resolution studio and remote applications. Based on the reference-standard Model 8300 Transformerless Microphone Preamplifier and Model 8200 Parametric Equalizer, this flexible 1U processor continues the GML engineering tradition while bringing the utmost in transparency, detail, and musicality to an affordable, compact form factor. The GML 2032 includes its own internal power supply.


MODEL 2032


One channel, multi-input, gain, filter, parametric equalizer with insert capability and internal power supply Inputs: Mic (balanced, XLR), MI (Musical Instrument; unbalanced, 1/4” TS)

  • Gain control: +15dB to +70dB, 5dB steps
  • Fine control: -5dB to +5dB, continuously variable
  • Phase switch, Phantom power (P48) switch
  • Filter -- Second-order Butterworth active high-pass filter; 100Hz, flat, 40Hz Insert control: split parametric equalizer from preamplifier
  • EQ section: four bands, fully parametric, continuously variable controls
  • EQ IN switch
  • Overload (OL) indicator: peak indication, preamplifier and equalizer


  • Microphone: 1 kOhm balanced >80dB CMRR, +17dBu max input before clipping
  • Insert in: 20 kOhm balanced bridging, >40dB CMRR, +21 dBu max input before clipping
  • MI: 1 MOhm unbalanced, +8.5dBu max input before clipping 


  • Bandwidth:
  • -0.1dB / +0.002dB, <10Hz to >30kHz, worst-case
    -3dB, >300kHz and <<10Hz, typical
  • <0.003% Harmonic distortion, 20Hz to 20kHz, typical
  • <0.006% SMPTE Intermodulation distortion, typical
  • 30V/usec discrete low-noise precision operational amplifiers, GML 9202 :
  • Noise:
    -80dBu broadband, EQ engaged, typical
    -112dBu EIN, MI input
    -120dBu EIN, Microphone input (Rs = 150Ω, 30kHz BW), worst-case
    -80dB crosstalk, 20Hz to 20kHz, worst case


  • +27.0 dBu clipping
  • < 3 mV output offset, stabilized by DC servo correction, direct coupled
  • Wired pin 2 "hot”, 3-wire unbalanced


  • Internal linear power supply, 110V/220V switch, 50/60hz: +/-28 VDC, +/-18VDC, +48VDC
  • Approx. power consumption: 28W; 500mA/250V slo-blo fuse installed (110V operation)
  • Separate Ground & Chassis connections at rear
  • 19" W x 1.75" H x 10" D rack mount chassis, black anodized aluminium, silver legend
  • Weight: 11 lbs.

A*GML reserves the right to make changes to these specifications as it deems necessary. Individual unit performance may vary due to environmental influences, manufacturing variations, and component tolerances. Please refer to full Specifications sheet (included in the Model 2032 Owner’s Manual) for details. 

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