Nuforce STA200


I am curious about the Nuforce STA200 amplifier  If anyone has experience with the amp it would be appreciated if you would share your listening impressions, both good and bad.  Some of the descriptions I have read classify it as a class AB amp and others a class D amp.  I am not technical savvy about these things, can a single amplifier be both? 
Thanks
George
jetter
@aberyclark Thanks for the recommendation. I will try the attenuators when they arrive, and allow them break in time. Hopefully, they do not smear the sound much. If they do not work out, I will see what to do next. Thx. 
Has anyone tried a passive unit with the STA 200 ? ( @aberyclark , did you happen to listen to your Schiit sys direct, w/o preamp ? ). Thanks
I picked up the NuForce a couple weeks ago and was planning to have my CEntrance dacmini modded to variable outs.  When that was a no go, I ordered a Luminous Audio Axiom ii passive preamp.  Luminous Audio takes the specs on your amp and speakers (as well as the dac) and designs the preamp accordingly.  Put it all together today, and even tho it’s just a few hours out of the box I’m pretty blown away.  Excellent soundstage and imaging, bass is tight, excellent midrange and the background is dead quiet.  I highly recommend the Axiom—about $220.00 with the upgraded Caddock Resistor.
Looks like the Nuforce has finally been discontinued. Too bad....I really love mine
I purchased a Luminous Audio Walker Mod, single ended, 3 in, 2 out remote unit about a month ago, and all I can say is, I will never use a preamp again. And, the STA 200 is amazing, and such a joy to listen through. Enjoy ! MrD.