I'm not getting any mid bass hump with the 3300's and the Accuphase combo. I like that I can turn down the mids too.
I've ordered a Dayton 30watt T-amp their $99 winsome mouse type amp, I'm excited to hear it with the RSL speakers.
They're not the end all be all, but there good, I think way better than the JBL 100's I had, more balanced and detailed.
They might like a good tube pre too.
Fun speakers.