While the sensitivity of Vandersteen speakers is usually in the 80s, as someone said, their an easy load. Bring your amp to your friend's house. Also, give Vandersteen a call. They'll likely put you on the phone with Richard and he'll tell you what he thinks. For what it's worth, I rad a pair of Model IICe with a 35 wpc harmon Kardon Receiver from the late 70s and it did the job.
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?