Description

Furman PQ-3 Parametric EQ, $499!

A vintage rackmount 3-band parametric EQ and preamp known for its high headroom and aggressive tone-shaping, widely used by guitarists for boosting and sculpting distortion.

Type: Parametric Equalizer / Preamp
Model: PQ-3
Manufacturer: Furman Sound
Country of Manufacture: USA
Year of Introduction: Late 1970s

Frequency Ranges:
Low Band: 25 Hz – 500 Hz
Mid Band: 150 Hz – 2 kHz
High Band: 600 Hz – 10 kHz

Gain:
±20 dB boost/cut per band
Maximum overall gain: +26 dB

Bandwidth (Q):
Variable Q: 0.2 to 3.8 per band

Controls:
Input Level
Low Frequency / Q / Gain
Mid Frequency / Q / Gain
High Frequency / Q / Gain
EQ In/Out toggle switch

Input:
¼” instrument input
XLR input (varies by version)

Output:
¼” line-level output
XLR output (varies by version)

Notable Features:

  • Fully parametric 3-band EQ with wide gain and Q range

  • High-output gain stage usable as a clean boost or preamp

  • Popular in guitar rigs for pushing tube amps into distortion

  • Rackmount form factor with rugged metal chassis

  • Used in the 1980s by players seeking surgical tone control

  • Known for contributing to tight, scooped metal tones when placed before high-gain amps