NT-CA874 NT-CA874 Power Amplifier The Mosfet Bridgeable Power Amplifier. Specifications 4Ω 80W x 4 Channels 2Ω 120W x 4 Channels 4Ω Bridged 200W x 2 Channels MAX POWER OUTPUT 1600W P.M.P.O DIMENSIONS 230 * 54 * 412 mm (WDH)