EFFICIENT POWER OUTPUT: The Sound Town UPDM-Q3 is a 4-channel amplifier, capable of powering 4 x 1150W RMS at 4 and 4 x 600W RMS at 8 , delivering massive but efficient power output CUTTING-EDGE CLASS-D AMPLIFIER: Utilizing class-D amplifier technology, allows for a lightweight design with outstanding power efficiency, offering unparalleled performance XLR/SPEAKON CONNECTIVITY: Connect with your speakers and subwoofers with ease using 4 XLR inputs and 4 Speakon outputs. The STEREO/PARALLEL switch effectively directs signal flow, providing diverse audio effects RELIABLE PROTECTION: The UPDM-Q3 amplifier is protected with overload, overheating and short-circuit safeguard features which include a fuse holder, and power/signal/overload/meter/protect LEDs. A 3-second start delay and a built-in limiter ensures smooth activation and prevent distortions