The dbx 131s is a single-channel, 31-band graphic equalizer that gives you precise 1/3-octave control over your entire frequency spectrum. Whether you're tuning a PA system, dialing in monitor mixes, or shaping room acoustics in a permanent install, the 131s gives you the resolution to get it right.

Switchable boost/cut ranges of 6 dB or 12 dB accommodate everything from subtle corrections to more dramatic tonal changes. A 12 dB/octave low-cut filter at 50 Hz removes unwanted rumble while preserving the bass content you actually want. With over 108 dB of dynamic range and balanced XLR inputs and outputs, this is a quiet, transparent EQ that belongs in any serious signal chain. The single-rack-space design keeps your setup compact and tidy.