Whoabackoff, you still reading this?
I'll share my experience. I've got a soft spot for that single ended distortion profile, and tried SETs with a few speakers. Here they are with my own highly subjective grades.
Klipsch Heritage (forte ii in my case): B- full range, A+ if bi-amped
-My 2 watt amps just don't have the balls required of Klipsch for proper bass on their own. But otherwise SETs and horns go together like peanut butter and chocolate. Bi-amping is the answer.
Def Tech supertowers (BP7006): B+
-SET sweetness, with bass!
Zu Druids: C+
-Not my cup of tea, but not horrible sounding. Punchy, phat sound.
Parker Audio model 95 Sig: B+
-less colored response than Druids at 1/3 the cost.