So, I have been running an all JL system. My 12w7 died after 2 years, and I am changing brands, for the most part. The source is an Alpine IWA-W200. I have A/D/S 346cs up front, Elemental Design 6.5'' in kicks, and Alpine Type R coax in the rear panels. I plan to change from my JL amps to the Memphis 1000/4. I drive an 03 GTI. (hatchback for those who don't know) I've done a rear seat delete, so there is a ton of open room in the car. I am looking at doing essentially 2 steups in one. 1. I'm looking at doing 2 Memphis M3 Mojo 15'' subs with either a Memphis 2500 or a Memphis 4kw. The box will be a 6 cu.ft ported enclosure tuned between 28 and 32 hz. 2. In a box inside the box above, there would be a .9 cu.ft. sealed box housing a 8w7 running off of a 250/1. The purpose of this is to have a nice well rounded system for DD, and then stupid, rediculous loud at the flip of a switch. Thoughts, opinions? The whole setup would run me a little under $2k.