Sold a set of Dunlavy 6's to a client some years back. First thing we did was put a floor jack under each speaker which was in an unfinished area directly under his mammoth speakers. We installed Audiopoints under the platforms still attached. Today I would set each speaker on new larger points of the same brand or consider the Sistrum platforms. I would also remove the crossover and replace all the sand cast resistors with non inductive wire wounds.. If you have a fat wallet Vishay nude metal film resistors built as a bridge make a huge difference..While you have the crossover out replace all the ferrous screws and fasteners with brass. Nice difference and cheap to do.
In fact replace all the steel fasteners with brass that hold the speakers in place. There is much more you can do with these speakers some easy some difficult. That's all for now.
Tom
