Amp/Preamps vs. High end AV Receivers

to geek101I listen at moderate levels because of neighbors and the room is about 12 by 13 ft so I don't require a lot of power but the B&W's are pretty efficient around 90 dbs. and the Denon does have a four ohm rating but the B&W's are 8 ohm speakers anyway.

Hi All,

Thank you all for you continued inputs and contributions. Much appreciated. 

@atmasphere

I have no doubt that even modest speakers would benefit from high end electronics and cablings but some of the posters here earlier suggested the Gryphon Diablo integrated and some suggested Vitus Audio these are $20k+ worth of integrated amps and wouldn’t make any sense to pair them with the B&W CM8 unless if the OP is willing to upgrade his speakers. Besides the OP already stated that he wasn’t willing to pay a lot of money upgrading his electronics. He just needs something better than his Onkyo AV receiver.
And the Rotel RAP-1580 av receiver will be a big step up performance wise from what he has now.

Good qualittle AV separates will of course be better than AV receivers but will cost way more than AV receivers and if the OP doesn’t have budget constraint and yes indeed good quality AV separates will be perfect choice.
However, the Rotel RAP-1580 av receiver will most likely outperform entry level AV sepaeates. While the Rotel RAP-1580 isn’t exactly cheap at $3800 but its audio performance is very good and will sound really good on his B&W CM8 speaker system. I’ve heard this RAP-1580 paired with the new B&W 702 S2 speaker surround system as well as the B&W 804 D3 speaker surround system and I must say that this RAP-1580 beast drove the speakers with ease and sounded quite good especially coming from an AV receiver.

In regards to your comment that there’s always compromise in sound quality with integrated amps, I partially agree with you but really good design high end integrated amps are excellent sounding and there’s no compromise made.
But then of course when you compare them to their own stereo separate counterparts the separates will be better.

In my master bedroom setup I have the Dan D’Agostino Momentum stereo analog linestage integrated amp paired with the Wilson Audio Duette series 2 standmount speakers and they sounded excellent and outperforms many lower end stereo separates. And in my regular smaller sized bedroom I have the Naim Uniti Nova paired with the B&W 805 D3 standmount speakers and they sounded very good. Naim Uniti Nova is an all-in-one box solution streamer/DAC/integrated amp all in a single chassis. Very musical sounding unit for what it is.

However I do have very high end stereo separates (linestage preamp + monoblock amps) in my main reference two channel setup listening room.
I also have very high end AV separates in my dedicated home theater room.

@caphill I personally will not invest in a $4k receiver (i.e both AV processor and amp). And specially when there are no measurements for the amp section of the receiver. Why even bother. No one really know what they are getting. 

You are right it is pointless to consider $20k worth of electronics for B&W CM8. And I would venture and say considering one unit at $4k is also pointless.

One can get great amps for far less than $4k. And once you have a good amp one is free to upgrade AVR/Processor every few years. 

My Marantz SR7005 is not at all close to dedicated AMPs I have, even with really modest speakers i.e Paradigm Studio 40v3.

Unless there is space constraint or usability constraint an expensive AVR is just a giant waste of $$, buy an used last gen AVR for 30% of its cost if one must, IMHO. Good amps are keepers!. Pick a flavor tube class A / SS class A / AB / D/ G/ H and sticking with it, they are better value for the $$ over long term and quite a satisfying musical option.