How many tube watts for Vandersteen 2's?

Banquo363, a 20' X 35' requires something serious to pressurize the room the way some require. You did use the word, moderate, so I would say it comes down to how much of a headbanger you are.

I agree with Paul's comments regarding the RM10, and he and Rnadell on Music Reference amps in general. If you can buy an RM10 for $1550, in my opinion, that has to be one of THE flat out biggest bargains in high-end audio.

In my experience, there's far more to how a loudspeaker and amp couple than just watts. People will throw a lot of other numbers and specifications out there, but I'd say oftentimes need to give the match a try, as some surprising things can happen. I would have honestly scoffed at someone suggesting I listen to a physically diminutive 35 wpc EL84 based tube amplifier with the Vandersteen 2s before hearing what I previously described. Shows you how much I know...

Gotta stop checking this thread or else my credit card is going to get dinged. Website lists at $1950. I'm not sure I want to find out whether the sale price is still good, but...

They call it the IT-85, but I think it specs more like 60W even in UL mode and the amp works in triode mode too, i think. :) ** the amp does have pre-outs for running another amp, so that may be usefull too. I have considered buying one, so I know a little about it.

The discount price was never listed on the site, but Roger announced on his Audiocircle forum, and it was confirmed when called 2-3 months ago.

IME 60 watts in plenty for the Vandersteen 2s. They are easy to drive with most tube amplifiers. In the case of the M-60 you don't need the ZEROs, in the case of the S-30 I recommend trying it both ways and see.