Bryston 14B-SST or Pass Labs X 350.5

You should also consider Ayre amps...I think its the best of them..

I had owned a Pass Labs X350.5 previously and definitely a good amp. But do yourself a favor and just buy a McIntosh MC402 power amp. Once you hear the big McIntosh MC402 you will forget about the Bryston 14B-SST & Pass Labs X350.5. The McIntosh MC402 is a great power amp and I have absolutely no regrets trading in the Pass Labs X350.5 for it.

Thanks for the comments guys. Tvad what you are saying about the bass control is very interesting to me because my concern is that the Pass would not have the woofer control that the Bryston does. In the past I have heard that the Pass' have incredible midrange but they do not have good woofer and thus bass control.

Let me echo Tvad. I have not been able to hear either in my own system but from other sources it is clear that their design philosophy is quite different and their sound is quite unalike. Pass has their own sound, class A has a midrange that you can't get from AB. In the past I used Krell, Musical Fidelity and Stax class A amps. I now use AB, Musical Fidelity and Meridian. The main thing is to decide what your sonic priorities are, no amp is the best at everything. If you can't audition them at home read the reviews and see which of them matches what you are looking for. And Buy Used, a high quality amp has a long life. I have a Tandberg 3026 that I bought used as a sub amp 15 years ago and it still works fine.