I received and hooked up my Yamaha A-S501 today. It replaced a Denon DRA697ci. The sound quality of the Yamaha is so much better than the Denon. I don't know if it is a fluke, but the Denon was like listening through a closed window. The sound difference blew me away. I really thought that you couldn't go wrong with Denon, but that DRA 697 sucks. It is lifeless on the high and lows; and congested in the mid range. I couldn't stand to listen to my new RP280's until today. I would like to thank Willland for recommending the Yamaha.