What amp for tad-150 and totem arro+lightning sub?

I enjoyed powering my Totem Arros with a PrimaLuna Prologue Two in a small space. Moving to a larger space, I have moved up the Totem line and have found the Simaudio I5 to be a nice complement. Perhaps a W-3 would be a perfect complement to your Arros? The Simaudio and Totem have a nice synergy!

NAD 272 is worth a look. Incidently, my brother has Arros and a Cayin TA-30 (same as primaluna)integrated tube amp. The soundstage and synergy of these two is amazing. The Arro's are very tube friendly. Primaluna makes a tube amp also that may mate very well with your TAD preamp.

thanks so much for the responses. I tried a 50 wpc antique sound lab tube integrated that i felt was not near dynamic enough compared to the ss 200wpc. i hate to get the size issue with a larger power tube amp, its my office system, so i can try some other brands.