Seven years ago I purchased a store demo pair of B&W 802Ds for a steal of a price and have been pairing them with Bryston electronics since then. IMO Bryston pairs very well with B&W speakers. The original setup was a used Bryston 4BSST (then shortly after a 4BSST2) amp and a BP26+MPS2 preamp.
I visit local audio stores once in a while, but I to date have not heard any system (speaker, preamp, amp, DAC, source) south of $40000 that would make me want to switch. Might upgrade to the latest version of the 802Ds, but given their retail price and that my current version sounds better than anything else I've heard there is no reason for me to do so.