Ive just been looking at the Rapid website and ive found something interesting. Aparently its a 20W audio amplifier inside what looks like a 5 pin triac. There are a few circuits in the datasheet. Could it really be as simple as the diagrams on pages 2 and 3? I hope the one on page 6 (labeled page 5) is whats inside this thing and not the circuit i would have to build.