Really need help picking an 18" sub

which one would you buy


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adjetta
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I have been all over the place the past few days trying to figure out what I need. So here is what I have to work with...

2002 Infiniti I35, it has a decent sized trunk (same as 00-04 maxima), folding rear seats, and it rattles like hell

Voltage

* Mechman 270 amp alternator

*big three done with 2/0 welding cable

*run of 2/0 welding cable to rear battery

*Diehard advanced gold agm (775 CCA, 55AH) front

*Diehard platinum agm (930 CCA, 75 AH) -rear

Box Specs

*can fit up to 8 maybe 9 cubes

* plan on tuning to around 26-28 hz via a 8" aero

*using birch ply for majority of the box with double mdf baffles

*bed liner outside, enamel paint inside

I want good sounding low bass, but enough cabin pressure to do a few bass tricks. my budget for a woofer caps at 620 bucks, but I would like to spend alot less

Subs I am currently considering Include

* FI Audio SP4 18" w/upgrades

*Sundown Audio Zv4 18"

*SQ HCD4

I am also unsure how much power i want to throw at whatever I get, recommendations on amps are also welcome, just note my overall budget caps at 1'100 tops

and I applogoize for this being so similar to my last thread, i'm just trying to narrow down my choices

 
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adjetta

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