THIS IS the DIY Gain clone built by Tim Rawson with a Lm3886 chip. It drives the rear surround woofers single Focal 7w's in my Home theater. The amp is on its side it is about 8 by 5 by 4. It is next to a Audio Refinement multi 3 amp for the front mtm woofers focal 7w's for the lf and rf and focal 7k's for the center. About 35watts for 8ohm per channel.