[richidoo]

I was reading the (German) Hifi and Records review of B100-SST and was intrigued by this statement:

"This entity now appears in the form of the '100B-SST' integrated amplifier, which is its designation here in Germany. But in order to immediately preclude any misunderstanding, the new '100' has not inherited the ingenious circuitry with the crossed NPN/PNP transistor pairs from the large power amplifiers, but only their 'SST' transistors. For each channel the '100' makes do with just a pair of these, whereas for the clever circuitry of the SST power amplifiers at least four transistors are required for each channel. But on the other hand, the 'Emitter Switching' of the B100-SST in the best Bryston manner is complementary-symmetrical, entirely discrete, and built up in dual mono architecture."

All of the Bryston power amps have SST designation. What's this reviewer talking about? Is there a different circuit design among the line and if so where is it delineated?  I am new to Bryston, trying to learn about the line before auditioning them.
Thanks!
Rich

[niels]

Yes, I saw that statement, but B100 should be exactly the same as the 2B SST, so I dont know...James will come by shortly I think.

[James Tanner]

Yes there is a difference in the way the output stage works with a simple 2- transistor output (2B SST, B-60, B-100, 2B-LP, PP-60) vs a more complicated 4 or more transitor output.  I will have engineering supply a more technical answer for you.

james

[James Tanner]

Here's a very technical explanation of the unique Bryston output stage design.

http://bryston.ca/BrystonSite05/pdfs/MiscDocuments/OUTPUT-STAGES.pdf

james

[richidoo]

Thanks Neils and James. It may take me a couple days to digest the answer  , but I must express my appreciation of your quick and detailed response.  Wow! 
Thanks
Rich