I purchased an Eminence Kappa 15C (only USA Eminence 4 ohm choice) This speaker is loud and Articulate. It is rated 30hz-2500hz @ 450 watts continuous 102db spl. I had to turn the settings down at home as it shook the walls and rattled the closet bifolding door at the settings of the original speaker. I am not saying this is the best speaker on the market..JBL and EV probably share that title but if is a lot less money for sure and does the job well. I have a Fender Deluxe Zone Bass with P and J pickups and equalizer preamp. The speaker comes with front and back gasket already on it. Anyone who has the Fender Bassman solid state amp should consider this speaker for an upgrade.