Professional Power Amplifier. 300W x 2 Into 8 OHM (2 x 95W RMS). 600W x 2 Into 4 OHM. THD better than 0.05%. 4 Speaker connection via banana plugs. A & B Channel Selector. Dual RCA & 1/4" Phone inputs. Separate volume control for each channel. 110/220 Voltage selector. Dimensions 19"W x 5-1/8"H x 13"D.