First, DON’T buy an Onkyo. Their reliability is atrocious, and worse, they’re now owned by a hedge fund or private equity firm that will only make it worse going forward. Next, and this will be a bit of a surprise because it sure was to me, I worked for Magnolia and demoed 804 D3s with a Yamaha RX-A2080 AVR and I gotta tellya, the sound was STELLAR. I’ve got a $30k stereo at home, and this pairing gave up very little to my home system when listening to my best reference music. I’m not a B&W fan nor an AVR fan, but I can tell you I could’ve easily lived with that pairing. My recommendation — buy a used 2080 or 3080 or, even better, one of their newer versions and see if you even need a separate amp. You might be very happy and will save you $$$. Plus, Yamaha’s reliability is top notch, and there was a synergy between the 2080 and the 804 D3s that was pretty special and utterly unexpected. FWIW, and best of luck.