YAMAHA power amplifier XM4080. I purchased this for use at events, but I haven't had the opportunity to use it, so I'm putting it up for sale. I have confirmed that the power turns on and the cooling fan rotates. Stereo Output (4Ω): 115W x4 Stereo Output (8Ω): 80W x4 Bridge Output (8Ω): 230W x2 Rear: Cooling vent The only included accessory is the power cable. Thank you.