I'm selling preamp, a Bryston 0.5b.
This is a great preamp, with a phono stage, and would serve beautifully in your primary or secondary system.
Sound from this Bryston is unmistakably Bryston. I had it paired with a Lexicon 512 (rebadged Bryston 9BST, i believe?) and it sounded awesome.
The unit is in great condition, albeit old, but no physical scratches or dents, etc.
Here are some specs on the unit-
I have the original manual, but don't have the original box, so will be packed carefully and shipped with a tracking number.