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.
What amp for tad-150 and totem arro+lightning sub?
I am looking for something that packs a punch. I am currently using a 10 yr old ati 200/wpc amp. I tried an antique sound lab tube 50/wpc integrated and felt it did not have near the dynamics and imaging as the old ss amp.