Belles original 150 amplifier. Any good?

I would try a Belles preamp for this. You should contact JohnnyR at the Audio Connection in Verona NJ. He has been a Belles dealer for more than 20 years. Good Luck!

MAYBE.

Agree with joey54, check with John Rutan, he knows his stuff.  They sold a lot of Belles amps.

+3 on contacting John Rutan.
I just bought my Aria monoblocks from him and sent an Aria preamp to be upgraded.
He knows Belles inside out, PM or call him.

Bob

First, how and where the heck you bought it for $50? That’s a steal.
I had that first Belles 150a HotRod version for over a year and loved it. I mated it with Jeff Rowland Capri preamp and I really liked the combo. It’s a very good budget stereo amp for someone new to the hobby or wanting to walk away from AV receivers. I used it to drive my Sonus Faber Concertino, Vienna Acoustic Haydn, and Focal Chorus 806. I then sold it when I ordered a new one Belles 150 v2, from Dave.... which is a big step up. Good luck