Bridgable Tri-Mode Operation Input sensitivity selector 18dB variable bass boost Continuous variable high pass and low pass crossover Low and high input Power and Protection LED. Durable screw terminals Chrome plated connections Illumination logo Frequency response: 20Hz-20kHz 4 channels 800 Watts Max 75W RMS x 4 Ohm 14.4" per year 12.2" long 4.9 inches wide H (7 lbs.). )