Hi! I've got an Alpine CDA 9815 deck, and 2x alpine DVC type-r SWR-1241D subs. I'm trying to run the subs via an Alpine MRD-M500 amplifier. The subs are dual 4-ohm DVC's, and the amp is a mono amp. It is designed for max power at 2-ohms. So, is there anyway I can run the subs at 2-ohms?? I believe I have a 4-ohm setup right now, and it sounds horrible (bass, what bass?). I have the bass (SUB-W on the deck) turned up all the way and I can barely feel the subs hitting from the front seat of my car (you know that feeling 2 12" subs give you when they hit). I only get that when I turn the deck to up like 20 in volume!!! I could get that at lower volumes (like 13 with the bass up to 5) on my old alpine cda 7995 and 2 DVC JL Audio 4-ohm subs with an MRP-M350 alpine amp. Could it be my box? (I belive I had the JL's running at 1-ohm though...). I have this box for the subs: http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3026984396 . I had to modify it a little bit because it was only 6 1/2" deep, and the alpine subs are 7" in depth. So I put 3/4" MDF rips between the subs and the box. Thanks for your help in advance.