You could, but it won’t sound great if they’re both audible at the same time.
There’s a slight delay through your Sonos home theatre setup (30-40ms) so unless you can match that with your NAD/KEF kit you’ll get an unpleasant echo.
Thanks Ratty, would it be better to connect the KEF’s to a Sonos Amp? would that solve the delay issue?
It depends. You could replace the Playbar with the Amp. Or you could use the Amp to drive rear speakers, in place of the Ones.
If you were thinking of an Amp+KEFs as another ‘room’, grouped with the Playbar’s, then I’m afraid you’d run into the fact that for TV the Amp would be slightly delayed. (For music it would be in perfect sync.)
I appreciate it, seems like it will be a bit difficult to accomplish what I’m after. Hope with new updates Sonos makes these types of pairings less complicated.