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
Base on this thread,  I just purchased this amp from Audio Advisor. A Demo unit. I also have a Schiit SYS which I will try with it. Will likely pair it with a DAC/PRE in a second system later. Will get back after gaining some experience with this. Probably not work well this my Jolida Fusion preamp as it has 26dB gain. 
If anyone thinks, or feels ( jeenam ) that the circuit boards are identical, I would like to see proof from you, or anything in writing indicating they are identical. They might be similar, but are not the same. If you look closely at photos of each ( there are many photos available on the net ), you will notice differences in the board " traces " of each. You can easily see these differences in the 2 photos provided in the link. I would like to move on from this. Merry Christmas to all. Enjoy ! MrD.
Stuff- I searched and searched for someone that has had both the Vidar and the Nuforce, never found one. There is someone on "superbestaudiofriends" who posted he had both on order over a year ago, but he never chimed back in with his thoughts/comparison.

I bought the Nuforce, so I am going to believe it is the better amp. ;)
Mesch, I am running my Nuforce with a FLAC server->Schiit Modi2 DAC->Schiit SYS pre and a pair of Wharfedale Emerald 97 MK IV spks, and I am very happy with the overall sound.