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.