Hi baldassinia,
I highly recommend Bryston!
I have gone through a few preamps over the years, and now have two BR-20's in two systems I have. When I did comparison tests, I was blown away by the BR-20's sound and silent background.
The BR-20 has had some negative reviews because of the firmware related to the streamer functions and their first generation new remote control. When I used their old remote for changing volume, the issues went away. I believe new BR-20's ship with a revised remote control to address that problem.
If you don't need or want a built in streamer and DAC, then the BP-19 would be a great choice. It's the same circuitry as the BR-20 minus the DAC and streamer.
Happy Listening!

