Just for the hell of it, I threw one of my Z15's into two cubes sealed and hooked it up to one of the 1500s wired at four ohms. All I can say is I cant wait to get all four in !!! Even off only 400 watts and in a sealed box I was impressed. I'm always happy when something exceeds my expectations. //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif:veryhapp://content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif