The Yamaha GQ1031 is a 1/3-octave graphic equalizer designed to provide precise response control over audio signals. It features 31 bands of equalization at standard ISO frequencies, allowing users to boost or cut each band by up to 12 dB. The unit includes input and output connectors (1/4" phone and RCA), an EQ bypass switch, and a peak indicator for overload protection.
| Total Harmonic Distortion | Less than 0.005% @ 1kHz, 0dB (all Equalization Controls at flat) |
|---|---|
| Noise Level | Less than -100dB @ IHF-A, 0dB (all Equalization Controls at flat) |
| Input Impedance | 22k ohms |
| Output Impedance | 600 ohms |
| Dimensions | 480mm x 44mm x 222mm (Wx Hx D) |
| Weight | 2.9 kg (6.4 lbs.) |
The unit provides a full 31 bands of equalization at standard ISO 1/3-octave frequencies.
Each band can be boosted or cut by up to 12 dB.
The PEAK indicator LED lights when the equalizer's output level reaches or exceeds +17 dB, warning of overload distortion.
U.S. & Canadian models require 120V, 60Hz.