Bryston 4B-ST. Good condition. I have used this power amp in a home system for approximately 15 years. Home was non smoking non pets.
Recently upgraded to new Bryston. These are work horse amps and can power any speakers. Crystal clear with great extension in the base range. Rated 7 due to age. It does not have cosmetic issues. Although designed for rack mount it has never been place in a rack unit but for a studio configuration this is quite helpful.
It accepts both RCA and XLR inputs. I have used both. The noise level with either cable type is unnoticeable.
Comes with owner manual, thick power cord and will ship in the original box.
Buyer pays shipping.