The difference between 25W and 40 W is roughly 2dB, between 25 W and 100W is 6dB. Unless you're a head banger in a big room, you'll be fine. Just understand the limits, and maybe think of it as 'qui-fi' - as in quiet fidelity. You'll be surprised what a good 25 W amp is capable of.
Thoughts? - First Watt F8 / Vandersteen Treo's
Always have been interested in the Treo's after hearing these at a friends. I have run across a lightly used pair but it seems to me looking at the specs these are not a good fit with my First Watt F8. The F8 being a Class A puts out 25 W - 8ohms. The Vandersteen site shows a minimum of 40W into 8 ohms and sensitivity of 85 db. First glance tells me that this is likely not a solid combination. Thoughts?