Follow the request of friends who likes High power Amplifier Circuit. I then beg for to advise this circuit. It has can to give the electric power about 300Watt RMS unless. Still be amp OCL Model Class AB give sound tall power and certainly should systematically protect that excellent a loudspeaker then torn difficult. Besides still use Transistor replace the integrated circuit then give waste matter feeling cancels bland three goes up and have MJ15003 and MJ15004 then have respond electric good enough power. When friends see the circuit has already , will have plentiful detail,then inappropriate for hobby Electronics man type. But if friends want to try build , have no a problem , be lucky.

Source: http://www.elecfree.com/electronic/300watt-audio-amplifier-hifi-by-mj15003-mj15004-transistor/