What is the output of the CXA81 MK II at 4 ohms? May 29, 2025 14:56 The CXA81 MKII is rated at 120W per channel into 4 Ohms. With 8 Ohm speakers the output will be 80w per channel. Related articles Can I use the CXA61/81 as a power amp? Will the CXA81 Mk II be released in black? What's the difference between the CXA81 and CXA81 Mk II? Is my product supported by the StreamMagic app? What's the difference between the CXN100 and CXN (V2)?