This is by far the best sub I ever owned dont let the price scare you I ordered two running off a old school zapco 600 competition amp on 2 ohms mono installed in a 2008 tundra crewmax custom built box out of 3/4 mdf dimension are 47 inches wide by 9 inches deep with a height of 22 inches high these subs really shine I think it will take a least 24 hours of beating to break these subs in so just buy it and you be amazed and happily overjoyed
These subs where everything I wanted and more the fit nicely behind my seat 08 F250 Super Duty. The Bass is out of this world, I don't think you could put more in it and it sound any better. I have two behind the seat with no modifications.
Might be a little pricey but for the quality, you'd really get what it's worth with this JL sub. Pretty amazing for a very shallow sub. Tight and punchy. Got some good power too. Allows me to save some space with its low profile.