Rogue Stereo 90 and Harbeth 30.1s

I am using a medium-to-small size listening room (13 x 15 x 8) with a pair of Harbeth 30.1s driven by Channel Islands Audio D-200 MkII monoblocks (200 wpc) and a Rogue 99 as the preamp.  Sources are digital (Dragonfly Red via Jriver),  tape and vinyl,  mostly jazz.  Volume levels are soft to medium.  I am considering swapping the CI Audio monoblocks for a Rogue Stereo 90 tubed power amp.  Since I will not get a chance to test it in advance,  looking for advice here.  Does anyone have experience matching the Harbeth to a Rogue amp?  Are 90 watts enough to get them going?  Do they like tube power?  Thanks!