I originally bought a cambridge audio 340A SE but thats fallen through and ive been refunded, im looking at getting either the same again or maybe the 540A V2 which i can get for cheaper. Honestly though i dont know, is it worth it? Are these cambridge audio amps actually better than the £99 pioneer ones from amazon? Theres no real specs to compare and i have no idea whats inside them, i dont really like paying for a name with no actual benefit. Any advice or suggestions? The amp would recieve audio from a xonar STX then send it out to a pair of wharfdale diamond 10.2's.