I have two 10" DD 1500 series *I'm pretty sure they're 1500 series*, box they are in, and a Visonic Amp *Not sure of the series*. I've had it for about 4 months now. $600 located in Baton rouge, Louisiana. The adhesive that was sprayed on the box to hold the carpet on sucks so that will need to be redone, but the box has two ports in the center.