I am considering the following : Yamaha RXV420 £215ish, RXV520RDS £250ish or Kenwood KRF-X9050D £280ishAV Receivers. the yamaha was recently reviewed in what hifi and was not given much praise but that was against £400/500 amps such as the yamaha RXV620 and the onkyo ds595 i was wondering how it would compare to the 620s little brothers 420/520 which i presume are up to yamahas usual quality. <br />the kenwood has lots of nice features dolby pro logic2 and thx but is it as good or better than the lesser specced yamahas? someone please give some good advice/help as it would be my first av amp and i want to make a good one! it would also be used for music - any other recomendations would be most welcome.