Having just had my brother home, he brought his 2 pairs of proacs.
I have now decided the proac sound is not for me. It is enjoyable, but it does err on the splashy treble, mid is slightly recessed, and bass is a little odd, too. This is very logical, as I have seen the crossover on all of them, and they are almost identical, save a few minor variations. It is quite obvious mr proac has found his way to integrate drive units and implements this blanket one, then tweaks very little.
I don't think you would like proacs given the sonic signature, I have heard the tablette 8s, 50s, studio 100, 150, studio 3, response 1sc, response 3, and all have the same general balance, mid back, top slighlty emphasized. Not my cup of tea, enjoyable, but by all means try yourself.
The naim power amp itself isnt' too bad, I found it very musical and heaven forbid, valve llike in its dynamics, IMO its the pres which push naim in the toppy direction.
Not satisfying having not all naim, but perhaps try a different pre?
or speakers, personally, I found sbl's horrid, vile, really anxious sounding. They use the same tweeter as proac incidentally.
hmmm maybe we should rename...seeking smooth speakers for
naim?
judging by your speakers you are seeking something largish, with bass, a little technological maybe with good detail and not too anxious sounding?
perhaps dynaudios or b and w's?
or finally, maybe naim isn't for you.