No experience with butkickers but I almost wish the EP500 didn't work as well as it does (I said almost). Because it is so great at filling my 4000 cubic foot dedicated HT with LFE, I can't convince my wife to let me invest in a 2nd one.

Never heard the 600 hundred or 800 but I am sure two 500's will have your foundation crumbling within a few weeks. Remember to glue the china to the shelves in the china cabinet before you start!

Paul

paul

Axiom M80, VP180, Qs8, EP500
Epson 3020
Rotel RB-880
Denon AVR-990