VT-100 MKII sonics but need more power


I am looking for a tube amp that has the sonics of the Audio Research VT-100 MKII but with more power say 150 wpc. I would prefer a stereo amp also, but all suggestions welcome. I am putting together a system for a friend with Alon 4 speakers and they have a 12" woofer. I want to have a nice full mid range with sweet highs and control the woofer with a tube amp for now.

I have heard that the VT-200 does not as good sounding as the VT-100 from a close friend who had both.

Thanks for your suggestions and Happy Listening.
bigkidz
Get moving, Mono's are the way to go...VTL-MB 450 Signatures are your answer. You will get some change from a $5. They Rock !
Thanks everyone, it is not the that I want louder versus I want to make sure that the amp can control the large woofer 10" so maybe I just want to make sure that I have enough current? Also, what about the new CJ 140 power amp, 140 wpc stereo amp, is it any good? I am hearing it is one of the best CJ amps that the compnay ever made, I know probably a different sound then the VT-100.

Thanks again.
The ARC VT200 MKI would fit the bill, with power and musicality in spades (it is a great amp). Incidentally, I own the VT100MKII, and I find it to be quite powerful. I am using the VT100 MKII to drive MG 3.5s. The sound is beautiful and robust.
Biamp with SS.
For bass SS amp I'd recommend McCormack DNA.5. It'll match VT100, give a nice drive to 12" woofer and overall the system will keep the seetness of mids and highs along with tube holographics.