150W per channel at 8ohm ; 225W per channel at 4ohm ; 450W bridged mono; Line 1 & line 2 priority input switching with line 2 aux ouput; Front panel balance, volume trim & speaker A/B switching controls; Rear panel master level, bass & treble controls; Front panel diagnostic LEDs; Auto-on signal sensing & 12V trigger; 120V-230V AC multivoltage; Speaker level input; Triple Darlington power amp stages; Dual-differential input for improved noise reduction; Includes rack mount ears;