CSMA280 + (22) CSS8008 Ceiling Speaker System

This JBL commercial audio package covers a full restaurant, bar, café, or retail floor in one order: a CSMA280 mixer amplifier and twenty-two CSS8008 8" ceiling speakers. The CSMA280 delivers 2 x 80W and powers 70V or 100V distributed lines straight from its built-in transformer, so a long ceiling run connects without extra hardware. Each CSS8008 has selectable 5W, 2.5W, 1.3W, and 0.7W taps for setting fuller sound over the bar and softer levels in the dining room. With eleven speakers per channel at the 5W tap, each output carries 55W, safely under the 64W per-channel limit, giving you two independent zones from a single amplifier.

Eight inputs handle the sources a busy venue relies on: mic/line euroblock connections with 27V phantom power for paging microphones, plus RCA inputs for a streaming player or music source. Voice-activated ducking on channels 1 and 5 drops the background music when someone speaks, and priority muting silences every other channel for announcements. Each output gets its own bass and treble controls, and two RJ45 ports accept JBL CSR-V wall volume controls (sold separately) so staff can adjust each zone from the floor. Sleep mode powers the amp down after about 30 minutes without signal and wakes it as soon as audio returns.

The speakers pair a dual-cone 8" driver with 96 dB sensitivity and 120° coverage, spreading even sound across wide rooms at low tap settings. They fit an 8.5" cutout and sit 2.8" deep behind the grille, a good match for standard drop ceilings.