234S Stereo 2/3-Way & Mono 4-Way Crossover [Open Box]

The dbx 234S is a dual-channel crossover that splits your audio signal and routes only the right frequency bands to each speaker driver, so your amplifiers spend their power on usable signal instead of frequencies the driver can't reproduce cleanly. It switches between stereo 2-way or 3-way operation and mono 4-way operation, giving you one box that adapts to a straightforward two-way PA or a more complex biamped or triamped rig. Linkwitz-Riley 24dB per octave filters, the industry standard for phase-coherent crossover points, keep the transition between drivers even and free of comb-filtering artifacts. Independent output level controls let you match gain across drivers, phase reverse switches on every output correct polarity issues between horns and woofers, and a 40Hz low-cut filter on both channels removes subsonic energy that would otherwise waste amplifier headroom. An optional mono-summed subwoofer output pulls the low end from both channels into a single feed for a dedicated sub amp. Balanced 1/4-inch TRS inputs and outputs and solid, tactile controls reflect four decades of dbx's experience building processors for touring and installed sound. Status LEDs make it easy to confirm you're in stereo or mono mode at a glance, even across a dim stage or a rack room with limited visibility.