Which amplifier to drive B&W Nautilus 802?

I too own a set of N802's and would second many of the comments. I currently use a 7 channel 300wpc Sherbourn. Initially, I used 2 of the amps channels to drive the 802's; then switched to 4 channels to "biamp." Wow! what a difference in dynamics when I aded the other 2 channels with the additional power. Like yourself, I want to take the next step and upgrade the amp and have been considering a Pass X350. However, I question what is to be gained by changing to a two channel amp of higher quality. The speakers sound as if they now have the necessary power and the dynamics sound great.

In lieu of a couple responses, I agree with the more good power you can give them the better, this line likes power. Jayctoy suggested the Plinius SA100, I disagree with this. I have talked with dealers that agree the SA250 is a nice match but the SA100 isn't enough, furthermore I heard a SA100 on my N803's and it was 'ok', same as the other 100 watt amps I had on them; 100 watts just doesn't seem enough.

Thank you for the feedbacks.
Think I will go for bi-amping, and amp with 300watt in 8 ohm and 600 watt in 4 ohm.

I have the N801 and having tried the following amps: Bryston 4BST, CJ Premier 11a, Pass X250, and now Pass X350, I am convinced that high-powered solid state is the way to go. 200 watts/ch is the minimum. These speakers will handle as much power as your amp can output.

Looks like a lot of people are suggesting bi-amping them as well. I will have to go try that...some day.

Tubes give a very nice sound to B&W's. However, you cannot drive them well without high wattage amps. You can use as little as 100 w. per channel, i.e. Audio Research VT100, etc. You will, however, not obtain the ultimate in sheer muscle unless you go to more like 200 w. of tube power. The Pass X350 is certainly a good choice as well, and I have heard it on these.