CSMA280 Mixer Amplifier + CSR-V Wall Volume Control

The JBL CSMA280 is a commercial mixer amplifier built for restaurants, retail stores, offices, and other spaces that need background music and paging from one compact unit. It puts out 2 x 80W and runs 4 Ohm or 8 Ohm speakers, or connects straight to 70V and 100V distributed lines through its built-in Hi-Z transformer, so long speaker runs across a dining room or sales floor wire directly to the amp. Eight inputs cover a typical setup: euroblock mic/line inputs with 27V phantom power for paging mics, plus RCA inputs for a music player or streaming source. Each output has its own bass and treble controls, and the illuminated volume knobs stay easy to read in a dim bar or back office.

Paging is handled on the amp itself. Voice-activated ducking on channels 1 and 5 lowers the music when someone speaks, and priority muting silences the other inputs for announcements. A sleep mode powers the unit down after about 30 minutes without signal and wakes it when audio returns, and two aux outputs let you feed an additional amplifier as the system grows.

This kit also includes a black JBL CSR-V wall volume controller at no extra cost. It connects to one of the CSMA280's rear RJ45 ports over standard Cat 5 cable, with runs up to 1,000 ft (305 m), so staff can adjust volume from the dining floor or front counter instead of walking back to the equipment rack.