40-50w tube amp for Aerial 9


I heard the new Dehavilland 50a at RMAF and just loved it. Dehavilland says it is nominally 40w, but practically closer to 50. I have concerns that it will not have enough power for my Aerial 9s (which I also love). They are 90db sensitive (pretty good) and have an impedance of 4 nominally, 3.2 minimum, low resistance (while I know the impedance is a factor, I am not sure how to apply it in this context).

Anyway, has anyone powered their 9s with this amp or a similar relatively low power tube amp? Anyone have any other thoughts on compatibility.

Thanks much.
128x128shredder

Showing 1 response by tpsonic

The 10t sounded best with tube amps under 100W/ch.The VAC 90/90 and Ren 70 drove them nicely.I would think that as you match the impedance tap to the speaker impedance,that you will get maximum power delivery.I believe that 40-50W should drive a 90db efficient speaker to reasonable levels,unless you need to "turn up" the volume to sustain a perceived level of detailing or control.