Someone let me borrow theirs for about 9 days, while they went on their honeymoon. I enjoyed this amp very much. It actually was my first experience with a SET amp and it got me very interested in them. I ended up with a more powerful 37 Watt Bel Canto SET40. The Soro pushed my Excelarray's very nice at moderate listening levels. My speakers are 89db efficient, however their equivalent to a 95db efficient point source speaker. If I remember correctly, they did quite nicely to about 90-95db.
Hope that helps,
Brad
Hope that helps,
Brad