"09-30-14: Milpai
Zd542,
I think you need to compare the A21 with Pass Aleph while driving the Aerial 7T. The Pass would probably do great with high sensitivity speakers, but might not sound good with the Aerials. Ricred1's room is also not a small one, so the Pass would not help there either."
Sorry. I was in a hurry when I typed that out and couldn't go into too much detail. I've heard the Pass Aleph's many time with Aerial speakers. Its true that the Aleph series didn't put out that much wattage. That said, they were extremely clean. I had several models myself. For example, I took my Aleph o's, rated at 40 watts/ch and drove a pair of B&W 802s3's with it. At the same time, I also had a Krell KAV250a. Power wise, you could hardly tell the difference. The Krell, of course, had better bass, but beyond that, there was very little difference as to the amps ability to drive the speakers. If you looked at those 2 amps on paper, they are vastly different. The Parasound is an excellent all around amp. Its a really hard amp to screw up with. I just brought up some alternatives given the qualities that the OP said he was looking for.
Since we're comparing amps, I think its worth noting that while most people would pick the Bryston over the Parasound, there's really no guarantee that the Bryston will out perform it. Its entirely possible that some may prefer the way it sounds for any number of reasons. Just because its a more expensive amp doesn't always mean its better in every way. Overall, I see both amps appealing to the same type of person. If you like one, you'll probably like the other.