Includes 1 RU with rack ears. 150 watts x 2 at 8 Ohms (275 watts at 4 Ohms, 600 watts bridged mono at 8 Ohms). Front panel level and balance trim controls. Rear mounted treble and bass controls. Independent rear mounted main level controls. Speaker A B switching. MAIN / INTERRUPT priority input switching. Signal sensing power on and trigger mode. High level inputs. Digital optical line input. Auxiliary line output. Made in China.