bryston b100sst as pre-amp

Sorry, but I must ask why you think you need more power? The B100sst should be plenty for the Sonatina, which I think is a 93db, 8 ohm speaker.

@tls49 , +1. Does the OP have a very large room, or listen at very loud levels that would require more power? Remember, doubling power only adds 3 dB.

Personally, if I were looking to split this integrated amp up, which I am not saying is even necessary, I would look to add a tube preamp and use the B100sst amp section.

I have been looking for an opinion on Bryston integrated amps.
Anyone care to share their listening experiences?

I really like my set-up w/ the Bryston b100sst. It just makes me feel good to hear it, smooth and detailed at all listening levels. Dead quiet between songs. It's a beauty. I have decided to keep my set-up as is and save my pennies for the new Bryston b135 3.

Bryston has long been known for bullet proof, reliable operation in recording studios running 24/7 with a powerful, clean neutral sound, and a price to please the pencil pushers. Each Bryston amp goes through what could only be termed a torture test at the factory, consisting of on and off running in for 100 hours at maximum volume levels. Not only does this greatly improve your chances of getting a perfect unit, it also means the amp will sound as good as it gets right out of the box without having to wait for weeks ‘til it’s burned in. After all that, Bryston is confident enough to include a 20-year warranty. If you owned a recording studio, that would appeal to you greatly.