Power for Innersound Isis

That's Roger, all right! I don't have the guts to take him up on his challenge myself. Although tube amps tend to clip more gracefully than solid state, you'd probably notice the sound becoming "hard", or congested or glarey, on loud passages or transients if the amp is starting to clip. I'm really not particularly technical, but my admittedly limited understanding is that the problem with electrostats is that they have difficult impedance levels at different frequencies, making them tough for many amplifiers to drive and causing some frequency response aberations as a result. Roger's amps are specifically designed to drive those types of loads. Maybe someone with more knowledge on this point, or specific experience with the Rogue and stats, could comment further. However, if your amp sounds fine as you say, I wouldn't worry much about it at this point, just enjoy the music!

get the InnerSound ESL amp. you'll like it. i know i do and Russ knows that as well. i tried some Quicksilvers with my Isis and they failed to deliver the best out of them. InnerSound amp is well worth the money and keep in mind the Isis are voiced with the ESL amp.

Iasi, I hear what your saying ,but Rodger says that all amps sound the same under controled test, so how could the speaker be VOICED with that amp if all amps sound the same? I will search one of these amps out to make sure, I do like the sound of these very much . I believe they will reward me very nicely for my effort in finding the right amp for them, but as I said before the Rogue does sound very good with these speakers, they might not have enough power to do them justice. Will see . Greg