I am selling my last Dynaudio Sub500 i had 4 of these and i am upgrading to all Sub600's. This is the most musical sub you will ever hear.
IF YOU ARE LOOKING FOR A SUB THAT THUMBS, BANGS, BOOMS, BLOOMS or HURTS YOUR EARS, DON'T BUY THIS SUB! BUT...
IF YOUR LOOKING FOR A SUB THAT DISAPPEARS INTO A ROOM AND IS THE MOST REALISTIC SOUNDING SUB YOU WILL FIND THIS IS IT!
The Dynaudio Sub500 uses real world Class A/AB power and gel's with your high end speakers making you want more not hurting your ears... it's only close competitor is a REL.