I have the Ars Sonum and a Joule LA150MKII/CAT JL2. So you might think I have some pretty good amplification for the Merlins, and of course your right. I love both combinations and that is saying something for the Ars given the separates it is "competing" with - the Ars is simply great value and just plain great with the Merlins regardless of cost. My question is have any of you had good experiences with SS and the Merlins. I'm going to use the Joule with the SS, which may limit some choices. Bobby has mentioned the BEL 1001, Ayre, McIntosh with the autotranformers, and in the past he mentioned Belles (may SIM was on that list as well). I have always liked the Pass Aleph series so I might consider the Pass XA30.5, although its 15kohm input impedance is a slight concern for the Joule (and the fact the XA series know to be warm for SS and with the Joule that may too much of a good thing), altough I am told it should work fine. Obviously the Merlin has specs that make it an ideal match for tubes and I think I'm covered on that front. What experiences do any of you have with the Merlin and SS, and have any of you prefered an SS amp to a tube amp with the speaker? I pretty much think a tube preamp is mandatory. Thank you.