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!  
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I had a friend who ran Harbeth Super HL 5 (well..one of those similar sounding models anyways; my memory is fuzzy) and Manley Snappers (years ago; long before Manley’s huge price increase), and it sounded pretty good! Great midrange. Later that friend upgraded to Harbeth 40.1 and a BAT Rex amp - so I imagine 90 tube Watts should be fine with Harbeths.

The Rogue 90 should be quite similar in tube power to the Snappers, and also in that it provides a gutsy, dynamic sound. I’ve run Rogue amps including the 90 in my system, though with Tannoys. The Stereo 90 is a good amp; get it Magnum’d and stocked with Tung-Sol KT120 if you can.
Thanks; that was going to be a follow-up question as I read your response - whether the Magnum upgrade was worth it. My 99 preamp just returned from the factory after a super magnum upgrade and the improvement was worth it to me. Glad to hear you reccomend it for the 90.

Will probably give this tube amp a go.
The Channel Islands Audio D-200 MkII monoblocks are good however I know from experience you will be happier with all the positive changes you are going to hear should you go with the Rogue Stereo 90 tubed power amp and I would recommend you go with the Magnum upgrade.