Wow. Loving the quick replies.
My goals are:
as much if not more SPL as the L7 15" at 1000w
decent sound quality (doesnt have to be fantastic just better than the L7 and being a square thats not hard to top)
to hit as low if not lower than the L7 15
to take my amp at 1 ohm for 8 hours straight and not break like the L7 started to after 2 (Hifonics BRX2000.1D 2000W RMS Class-D Monoblock Brutus Series Amp)
and around 350$ (willing to spend more if its worth it/needed)
American Bass XFL 15 wont handle the power I want to run
Sundown X/Zv4 15 is better on the power handling and ive heard legendary things about sundowns just never heard one in person
Tantric HD/HDD 15 would work but they are a bit pricey
Im also open to smaller subwoofers as long as they can fulfill the requirements above. Im not big enough into car audio to be able to take a small sub and make it hit harder/lower/cleaner than a larger sub but I have the skills to put together the setup with a little guidance and I know it can be done.