I'm using an Onkyo 708 no problems and a lot of possibilities, I have my 8000 as front, 1 4000 center and some non coms as surround work like a charm, BLs connected to line out, and all adjusted with the microphone system that comes with the amp. I run to the amp. computer, tv, Blueray, set top box, BG 5000 and zone 2 out (dining room) I run S45s. I've had the amp for 1.5 years now and never had a problem.
Beosound 3000, BL 4000, BL 8000, BG 2404,BG 5000, BG CD50, Beocord 5000, BM 901, BM 2400, BM 4000, BV S45, BV 3702. There is nothing we cannot do, but a lot of things we don't want to do!!