I have heard that reciever, using the built in DAC's for audio playback (using the digital coax input). We (Avkonen, Bestboy, and myself) listened to the rx-v730 with the M60's (stereo only) and it sounded great. Very clean, clear sound, and seemed to have ample power. The only thing that kept me from buying that unit was the poor FM reception, which is pretty common for most newer receivers. The built-in phono preamp was not anything great, but neither is my record player
I should have qualified first, I am no expert, but I know what sounds good to me. Enjoy your new reciever.