Naim Nait 5Si and Focal 807W Speakers

Sure they are.
The Focals are very efficient being an 8 Ohm speaker with a sensitivity of 92 db. Just about any amp will drive them.
The better question may be if the Focals are a good sonic match for your ears?
If you heard them and like them, then go for it. The Naim will handle them with ease and never break a sweat.

I had the Naim. It won't have any problem driving the Focals, but its not a good sounding amp. It was probably the most over rated piece I ever bought. If you have a pair of very dull and forgiving speakers, the Naim sounds OK. On my B&W LM1's I use for my PC, it sounded pretty good. But those speakers have a soft tweeter and are very forgiving. When I put it on a better, more revealing speaker, it just fell apart sonically. The best way I can describe it is that its not a clean sounding component. It won't even come close to doing the Focals justice. I would pick a different amp.

Zd542
Yap, you was right. On Tuesday I packed the Focals and
went to the Store. The Focals sounded terribly with the Naim. The dealer suggested Arcam A19 but he don't carry the
Arcam's gear. Any opinion on the Arcam.

Didn't need golden ears to here that one. lol. Nothing wrong with Arcam. I haven't heard the 19 so I can't say for sure what it will sound like. Overall, I find the Arcam product line to have a nice, polite sound. If you're looking for a lot of power and big dynamic swings, you would probably need to look elsewhere. I actually have an Arcam 33 CD player that I like very much, but there's things it clearly does do and things that it does not do. If you like the sound of Levinson, newer Bryston and even Parasound, You'll probably like the Arcam.

I've had a bunch of integrated's in this overall class, and my favorite was the Creek 5350SE. If you could find a good used one, that would be my first choice. If you are willing to go a little more, an Ayre AX-7 would also be a good choice. But I would suggest that if you've never heard Ayre equipment before, you would definitely need to listen to it first. The sound is nothing like we are talking about here. I love it. For me, Ayre makes the best SS gear, but not everyone feels that way, and nothing else sounds like it for comparison.

All I do know for sure, is that you'll definately be able to find something that sounds better than the Naim (and probably at Walmart).

Zd542,
That was good one. I think that anything at Walmart would sound better then Naim.

I don't need lots of power, 2x50/55w would be enough. I do
like the Parasound power Amplifiers but not the Preamps.

I will try with the Arcam A19. Would be Arcam more open then
NAD.