i currently own the 525. it's in my bedroom 11x14 and is powering 3 axiom M2v3 speakers and 2 axiom QS4v3 surrounds with an emotiva ultra sub 12 and it sounds great. i'm very happy with it thus far. i only have one issue with it and i believe it can be dealt with in a firmware update. i currently stream a lot of hi-rez audio via a cat6 gigabit network. everything plays great with the exception of some selections on certain albums at 192/24. it does play most of the 192/24 music but just a small handfull it says it can't play and we are talking tracks on albums, not complete albums. i get the message "cannot play" and it goes to the next track.
i've notified onkyo and they replied saying they are looking into it. the digital albums are all from HDTracks. as i mentioned, i really like this receiver. it does everything i want it to, has plenty of power for my 90db front 3 speakers and the 94db surrounds in the room that they are in. it easily fills the room with no problem. also the 525's DAC sounds great on all my music from the rolling stones to fleetwood mac to john coltrane; all resolutions sound amazing. i'm so happy that they finally are rolling out receivers that stream hi-rez via ethernet. Oh Yeah, this receiver and the others mentioned in this thread all stream DSD and Dolby TrueHD via ethernet. so for someone wanting to get into hi-rez audio and not spend a fortune on an external DAC out of the gate, i highly recommend this for starters and intermediate leveled listeners. truth is, this sounds fine and notice i didn't use the term audiophile! it sounds good to me and it's surely good enough for me in the bedroom.
for me, this is a great receiver, worth every penny and i'm very, very glad i got it. i've downloaded some DSD sources and they sound amazing! i have a blu-ray player and hddvr cable box connected to it. so far, no problems with either of them with the receiver.
this receiver replaces my 509 which i gave to my daughter who just graduated college. this is her first "big girl" receiver. she loves being my child getting all the gently, lovingly used gear i have!
i'll keep you guys posted and let you know if a firmware for the 525 comes out and resolves the issue of not playing some 192/24 sources while playing others.
55" Sony SXRD 1080P, PS3 & XBOX 360,
AppleTV, iPhone5,iPad4 both 64gb
Oppo BDP-105D, 105, 93, Onkyo PR-SC5507P & TX-NR525.
Emotiva XPA5,UPA2, UPA200 & Mini X Amps
Speakers, Polk SDA-2, Monitor 10 & 5Jr, Axiom M80,
VP180, QS8, M2, QS4, NYGiants!