CSA 2120 Commercial Amplifier + (4) 3.5" Black Cube Speakers

The JBL CSA 2120 two-channel amplifier and four Rockville Cube black speakers combine into a compact home-theater-style sound system built for restaurant and bar seating areas. The amplifier delivers 120W per channel into 4 or 8 ohm loads, is plenum rated to UL2043 for installation in ceiling air-handling spaces, and cools entirely by convection so there is no fan noise competing with conversation. An auto-standby mode saves power when the room is empty, and summing RCA inputs on each channel simplify hookup to a source.

Each Cube speaker uses a true 2-way design with a 3.5" paper cone woofer and a 0.5" PEI tweeter, handling 30W RMS and 75W peak per speaker for clear, full sound from a cabinet small enough to disappear on a wall. A 360-degree swivel bracket aims each speaker exactly where you want coverage, and quick-disconnect euro-block terminals make wiring and rearranging fast. Four speakers running off one two-channel amplifier let you split coverage across a bar area and a dining room, or run all four in the same space for fuller sound. Mounting brackets, safety cables, and screws are included, so a single order covers the amplifier, four speakers, and everything needed to hang them.