Nuforce STA200

Thanks JL35 and Mr.D.  I think I’ll see if RV knows about the NF amp.  I might even ask, in a diplomatic way, whether his retraction was an overreaction to a minute number of incidents.  Thanks again!

I wanted to report back that I have now tried a pair of the STA200s vertically bi-amping my Vandersteen’s.  No oscillating!  Phew!  The amps sound great, but they’re still breaking in.

Thank you for the feedback. What changed your mind about trying them this way, except time ? 

RV said to listen for extra brightness when bi-amped.  I had time, so I compared and found no additional brightness.  I didn’t want to go through the hassle of returning one of them.  I really like the sound staging and imaging from the amps.  Bass seems a little lean, but it’s fast and articulate.  Hopefully the amps will bloom a little more after breaking in.  I’m using a brand new Parasound P7 all analog preamp with it, so maybe that needs some break in time too.  New power cords too.  I’m incredibly impressed with how dead quiet the amps are, however.

I encourage you to leave everything on, 24 / 7, with music playing through the system. It will take, ime, a few hundred hours, for them ( the preamp, too ), for things to gel ( lean bass, as an example ). They should be better, in sq, over the Rotels, in every area, but with a new preamp, you might not attribute all of these changes to the amps themselves.......And yes, they are very quiet....Anyone who experienced them to be noisy, was experiencing the high gain of them, amplifying noise earlier on, in the signal chain. Thank you for the feedback.....Enjoy ! MrD.