My Klipsch Heresy IIIs are amazing...makes me wonder if they imbued the "Capitol Records 75th Anniversary" version with some extra mojo (doubtful), but I tried the Heresy IVs well into break-in and they had upper mid frequency anomalies that irked me (you don't wanna be irked by specific upper mid piano roar) and I sold them along. The IIIs have a far more complex titanium diaphragm loaded mid horn (the IVs just stick the polyamide driver right on the mid horn opening with a small cloth cover, the IIIs have a much more convoluted horn loading...and I like it...) that could be the key benefit here, and having recently added a Pass XA25 to the system, well, it's friggin' mind blowingly good. 2 REL subs are already there, but the Schiit Freya/XA25 combo seems unbeatable with the Heresy IIIs for my tastes resulting in a vacation for my trusty SEP tube Dennis Had Firebottle...note also how innocuous the Heresy speakers size is relative to the coherent and gigantic sound they put out.
