The Model 2032 Microphone Preamplifier / Parametric Equalizer is a single-channel, multi-input device for high-resolution studio and remote applications.
Incorporating the renowned 8300 preamplifier and reference-standard 8200 equalizer, the Model 2032 inherits over thirty years of GML engineering excellence.
This transparent class-A discrete design with internal supply delivers reliability, musicality, and precision.
GML 2032 Features:
All-discrete, Class-A design; no integrated circuits to compromise theaudio pathDC-servo and premium-grade film coupling; no interstage capacitors toadd distortion or degrade over time; no tantalum electrolytic, ceramic, oraluminum electrolytic capacitors in the signal path*Transformerless; precision electronically balanced inputsDesigned with GML 9202 (single) and GML 8501 (dual-differential) lownoise,low-distortion, wide dynamic range, wide bandwidth precisiondiscrete opampsDC-servo stabilized direct-coupled outputMulti-input format: MIC or MI (front panel musical instrument)Wide gain range (10 dB to 75 dB) available on both inputsPrecision Gain switch: 65dB range in 5dB stepsContinuously variable preamplifier Fine gain control, +/-5dBFour-band fully parametric equalizerLow-frequency and High-frequency Shelf mode capabilityFlexible routing: Single-Channel, Independent, Inline Insert configurationsHigh-pass Filter; selectable 40 Hz, flat, 100HzFront panel Phantom and Phase illuminated switchesFront panel EQ IN and Insert illuminated switchesOverload (OL) indication LEDPower status LEDLow-noise, highly regulated internal linear power supplyModern surface-mount construction, yielding maximum precision,manufacturability, and reliabilityNo internal signal interconnects; high-quality signal relay switchingCarbon-film and conductive-plastic custom precision potentiometers,manufactured to GML exacting standardsMulti-colored knobs, GML standardStylish and durable black-anodized aluminum front panelRugged chassis; black powder-coat finish over aluminumReverse-anodized front panel legend, much more permanent than ink orpaint processesBaked-on epoxy paint silkscreen rear panel legendQuality PCB manufacturing, assembly, and chassis construction
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 stepsFine control: -5dB to +5dB, continuously variablePhase switch, Phantom power (P48) switchFilter -- Second-order Butterworth active high-pass filter; 100Hz, flat, 40HzInsert control: split parametric equalizer from preamplifierEQ section: four bands, fully parametric, continuously variable controlsEQ IN switchOverload (OL) indicator: peak indication, preamplifier and equalizer
Microphone: 1 kΩ balanced, >80dB CMRR, +17dBu max input before clippingInsert In: 20 kΩ balanced bridging, >40dB CMRR, +21dBu max input before clippingMI: 1 MΩ unbalanced, +8.5dBu maximum input before clipping
-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, typical30V/usec discrete low-noise precision operational amplifiers, GML 9202
-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 coupledWired pin 2 "hot", 3-wire unbalanced
Internal linear power supply, 110V/220V switch, 50/60Hz; +/-28 VDC, +/-18 VDC, +48VDCApprox. power consumption: 28W; 500mA/250V slo-blo fuse installed (110V operation)Separate Ground and Chassis connections at rear19" W x 1.75" H x 10" D rack mount chassis, black anodized aluminum, silver legendWeight: 11 lbs., approximate; shipping weight may vary