I bought two new Soundstream amps way back in 91-92. They are the D series. I now run 3 D100II's and a MC300 (very old stuff). These amps were/are great.
I did own a Reference200 and it was crap. I know a lot of people who have experienced these amps burning up due to excessive heat.
If your amps a very hot to the touch during normal use, get a fan to cool them. You will GREATLY extend their life! I housed my 4 amps in a amp rack. It's a sealed enclosure with fans at both ends, one pushing, one pulling.


I also know from experience that Phoenix Gold amps sound great! My friend used to have a M44. If I weren't using Soundstream, I'd be using PG.