Alright, i am looking to build up a daily gp build. I was almost dead on a pair of 15's Sundown SA's to be specfic. I guess i am looking to spend around 550ish to 600ish on subwoofers. I am pretty sure i have roughly 14 cubes to work with in my jeep i'll have to double check in the morning but im pretty sure its around that range. I have a sundown saz 3000d to throw at whatever combo i end up going with. My goal is to be as close as 148-149ish on music dbs would be nice but i know a lot of factors play into that. Also i don't want to build a wall unless the gains were huge. I listen to mostly rock, heavy metal, as well as rap. Going in a 2001 grand cherokee limited, if anyone has tips on getting louder in these jeeps that help as well i know most people do sub up port back which sounded best to me with my previous setup. Also thanks in advance for the input. If i left anything out just let me know, i'm typing on my phone before bed so i could have left something out lol *UPDATE* Maybe 2 18 inch Sundown Audio V3's getting fed 3k ? Would that be able to do the trick ? I have also contemplated running 2 oa 18's as well guess that way i could put maybe work on some mids and so forth. I am also hoping to snag another saz 3000d to link them up, as far as that goes i would want to be running at 2 ohms correct if i had to saz 3000d's hooked up ? I've also bumped my budget up to 1k for subs. if that helps any lol. (edit) I also forgot to mention the dimensions i am working with are 34Lx42Wx 30.5 Max Height Which from what i have heard you don't really want to go above half of your max height in a sub up port back box build. Any input would be much appreciated, i have been putting off a build for the longest time as i had my last system stolen and with having the dual climate control go out in my jeep as well as having to replace the 400 dollar window that got smashed out etc etc lol.