ATI AT2002 vs Bryston 4B ST

Has anybody had the opportunity to compare the sound of the 4BST and the ATI AT2002 amplifiers?

I have read in some posts that Bryston sounds similar to ATI but none of the posts was an AB comparision with the same pre, speakers cables room etc.

Has anybody done an AB comparision?

Many thanks
I have not done a direct comparison, but I've owned Bryston 7B SST monoblocks and still own the ATI AT602. I have no hesitation in recommending ATI to those folks that want to save the dollars over Bryston's 20 year warranty.

If you're one that believes that speakers and the room have a much larger impact on a system's sound, then ATI is a great option -- apply the savings to speakers.
Thank you for your reply. I have a pair of Usher BE-718 that I will be driving. Use a Benchmark Pre as my pre-amp. No intention to chane the speakers or pre at this stage.