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Great River Electronics

Great River Electronics 32EQ

Single-channel 500-series EQ and filter module (Harrison 32-Series design)

Equalizer

$1,010Manufacturer list price

Specifications

Type
Equalizer
Description
Single-channel 500-series EQ and filter module (Harrison 32-Series design)
Signal path
Analog
Channels
1
Channel format
mono
Form factor
500-series module
Connection
500-series (edge connector)
Powered
false
Country of manufacture
USA

Details

Controls: 4-band EQ (Low, Low-Mid, Hi-Mid, High) with gain and frequency rotary controls; Low and High band peaking switches; EQ in/out switch; sweepable high-pass and low-pass filters with filter in/out switch; internal jumper selects 'vintage' feedback EQ design or non-feedback option

I/O: 500-series edge-connector I/O via host rack

Notes: MSRP per manufacturer site, verified July 2026. FLAG: this is a licensed collaboration between Harrison Consoles and Great River Electronics recreating the EQ/filter section of Harrison's 32-Series console — a different, Harrison-designed circuit from GRE's own NV-series discrete/transformer topology used in EQ-1NV/EQ-2NV/MAQ-2NV. topology left blank because manufacturer does not state Class-A/transformer specifics for this module. Single 500-series slot, powered by host rack; manufacturer states 'designed and built in the USA.'

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