I used to have ML SL-3 speakers and thought that my Berning ZH-270 tube amplifier really made them sing (within the limitations of those particular speakers). If you are not familiar with the Berning, it is a unique OTL design that uses a radio frequency carrier that is out of the signal path to convert the high voltage tube output to a high current output (the same function as a transformer). Since it is out of the signal path, it has the same advantages of a standard OTL design but can be successfully paired to difficult to drive speakers like electrostatics. It is a wonderful sounding amplifier with some of the best bass you will ever hear, and is plenty fast enough to keep up with the speed of the Prodigy's. (Plus it is the size of a shoe box and only weighs 10 lbs.) However, it is only 130 watts into 4 ohms, so if you have a large space it may not have enough oomph for you. But it should be on your short list to try.
Tube amp for ML Prodigy's
Does anyone have any experience or advise on a great power amp for Martin Logan Prodigy's. I started with a SF Power2 then went to a ARC VT200 which was an improvement but I still feel something is lacking. Is there an OTL that will work with these speakers? Am I beating my head against the wall here? I listen to a variety of music, Rock, acoustic, jazz, etc. etc.