Used Art HQ231 Dual 31-Band Graphic Equalizer

ART's HQ231 is a two-channel 31-band graphic EQ that works great as a live sound tool, particularly any applications with the potential for feedback. The 31 bands feature 45mm sliders with center detent and 6dB or 12dB of boost or cut. It comes equipped with ART's FDC (Feedback Detection Circuitry), which visually indicates potential feedback on the EQ band's LED, letting users quickly bring down that band. The Constant-Q filtering ensures changes on one band do not affect the adjacent frequency bands. Each channel features both high and low pass filters and a master level control in addition to the individual bands. Use the EQ with unbalanced RCA or balanced XLR or TRS with both inputs and outputs of each type. You'll find the HQ231 an indispensable part of your live sound or in-studio setup.

HQ231 Features

• Two-channel 31-band graphic EQ
• FDC illuminates slider LEDs to indicate potential feedback immediately
• Constant-Q filter helps isolates individual bands
• 45mm center-detent sliders
• 6 or 12dB of boost or cut
• Balanced XLR/TRS or unbalanced RCA inputs and outputs
• High and low pass filters for each channel
• Variable input level controls
• VU metering on each channel
• Bypass on each channel
• Ground lift switch
• Selectable input voltage