The JBL's CSMA280 is a commercial series mixer amplifier that having eight mixer-channel inputs and two output channel, designed for commercial and industrial use. It has a peak output of 80 watts and a channel power of 10 watts. Each channel has its own volume control, as well as two master volume adjustment knobs, bass and treble controls, and a power switch on the front panel. The volume controls are lighted so that they can be viewed and used in low-light situations.
The amplifier, which can drive both eight and four Ohm loads, can be utilised with 70V and 100V distributed audio systems without a separate transformer. Mic/line inputs, unbalanced RCA inputs, speaker connections, Hi-Z and phantom power switches, and more are all included on the back panel. A RJ45 connector is also included for use with JBL CSR-V in-wall volume controls (available separately).