JL Audio CP112-W0v3
Don't doubt this sub! Built full system for sound quality with all the bells and whistles and this sub delivers! Running it off of a Rockford Fosgate Power 1000bd at 4 ohms mono. My amp dynoed 411 watts at 4 ohms at 14.6 volts. Running 4 amps total with 16 speakers off alpine head unit and audio control Eqx and epicenter. Test tone shows me this sub sounds best at 58-70 htz on my set up and is very punchy and boomy when I need it to be either one. Paid $212 on scratch and dent and I'm yet to find why it was scratch or dent because it was perfect and after 3-4 weeks of daily playing, it's broken in and carries the mail.
Pros: Great sound. Great xmax. Great bass. Loud. JL Audio, what did u expect but good?
Cons: Awkward shape hard to "fit" in some vehicles.