Can someone draw out or point me in the direction of an audio amplifier circuit? I wanna build my own portable speaker system with an amplifier built in, but I wanna build the amplifier from scratch with no bells and whistles. I want it to be high wattage (40 or 50 or more.) and able to drive typical 8 ohm speakers. My understanding of the rules of building circuits is limited, but I can read a schematic and understand how they work. Any Help?