Quested AP-700 power amp manufactured by MC2 Audio in England. 8ohm stereo 350w per channel, 4ohm stereo 650w per channel, 2ohm stereo 950w per channel. Bridged Mono option. Great sounding amp with a more transparent sound then the Bryston 4B it replaced. Awesome driver for any large main monitor. Available as a package with Quested H208 monitors for which this amp is a perfect match.