Separate names with a comma.
[IMG] http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=1&I=42#results ^^^ thats how you wire a DVC 4ohm sub, you will see the drop...
if you have a alpine 500 watt amp already on the speakers, you're giving them all the wattage they need (as each speaker is 250 RMS and the subs...
just to clarify, make sure this is how you have it wired: [IMG]
they are MTX Thunder 4000 series subs
as far as brands go i would certainly choose kenwood in a lineup with a brand that most people would need to think of if they've ever heard...
ya, i fell for the price as well here recently, got a brand new PA ANARCHY 1500.1 for $89 at local shop to put into my friends Dodge Magnum.......