I may have the opportunity to get a custom pair of Carver ALIII ribbon speakers made at the old Carver shop. The specs are very similar to the original except they are sealed back (non-dipole) with a larger box/loading for the woofer. My question is, how might my 40wpc tube amp do powering those speakers? Obviously hearing is believing and I will set-up a demo if I can, but I want to make sure it's not going to be a waste of my time as the tube amp is not leaving my rig. I've heard that the Carver ALIII speakers like power, but power isn't everything either. Any feedback would be very helpful as I've heard the speakers a few months ago and they sounded good with the 150wpc SS set-up the owner was running. Thanks!