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Great River Electronics

Great River Electronics MP-500NV

Single-channel 500-series mic preamp module

Preamp

$1,034Manufacturer list price

Specifications

Type
Preamp
Description
Single-channel 500-series mic preamp module
Topology
discrete Class-A, transformer-coupled
Signal path
Analog
Channels
1
Channel format
mono
Form factor
500-series module
Connection
500-series (VPR Alliance-compliant edge connector)
Powered
false
Impedance (Ω)
1200 / 300 (switchable)
Country of manufacture
USA
Phantom power
48V

Details

Controls: Input gain (5dB steps to 60dB), output trim (-25 to +10dB, max overall gain 70dB), polarity switch, phantom power switch, input impedance switch (1200/300 ohm), output loading switch (600 ohm), dual-stage input/output metering

I/O: 500-series edge-connector I/O via host rack; front-panel Hi-Z instrument (DI) jack with its own input amplifier. Per manufacturer, identical specs/performance to NV-series rack preamps except for size, weight, and it lacks the rack version's insert patch jack and -10dBV DAW output.

Notes: MSRP per manufacturer site, verified July 2026. FLAG: same NV-series circuit as MP-2NV/ME-1NV, packaged as a 500-series module occupying 2 horizontal slots and powered by the host rack (no internal PSU) — separate row per instructions for form-factor variant. Manufacturer states VPR Alliance-tested.

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