HD231 High Definition Dual 31-Band Equalizer

The HD231 High Definition dual 31-band equalizer features the quality components and innovative features required for precise and flexible professional-level audio performance. The HD filter sets utilize precision 1% resistors and all active gain elements are ultra-low noise and low distortion. A total dynamic range to 120dB makes the HD Series equalizer perfect for all applications where precision processing and silent operation are a priority. They have the rugged construction needed for touring live-sound use and detachable Euroblock interface connectors for easy integration into professionally installed systems.

They feature 20mm oil-damped precision sliders with a precision center frequency and constant Q response which is narrow enough to prevent unnecessary interaction between filters, yet wide enough to create the exact natural sounding audio response that you seek.

The HD Series equalizers incorporate independent variable Hi Pass (low cut) and Low Pass (high cut) filters. The Hi Pass filter is useful for the reduction of power robbing, sometimes destructive low-frequency rumble, as well as wind noise, and AC hum. Having separate variable control for each filter allow you to tailor audio signals to perfection.

Other features include automatic relay bypass of audio, a variable input level control, clip level indicator, selectable AC line voltage, RFI filtering, selectable Scale Switching - (higher slider resolution at +/-6dB - or normal slider resolution at +/-12dB), and active balanced input/output XLR, 1/4", and Euroblock connectors. A Bypass switch allows for direct comparison between the equalized and non-equalized signal for each channel.