Final system help

[myjaja 10+ year member]

For the past couple of months, Ive been just trying out new subs for the fun of it. Now I just wanna have a final system. I want two good 12" subs that get extremely loud, while still sounding good. My goal is to hit 150 dbs with lower tunning. Itll be running off an AQ 3500d amp. I currently own an aq hdc4 12" and a 15" fi btl n2. I still wanna go louder though. I was just planning to get another aq hdc4 and call it a day but idk. I love how the fi btl n2 sounds way more than the aq hdc4. Also, this will be in a trunk of a 96 honda accord.

I metered both subs each on a aq 2200d..

single 15" fi btl n2 in a 3.61 cu ft box after displacement did 146.6 in kick at .7 ohm

single 12" aq hdc4 in a 2.55 cu ft box after displacement did 144.5 in kick at .5 ohm

I still wanna go louder though.. So the 3 choices I have are

2) 12" dc xl's

2) 12" fi btl n2's

2) 12" aq hdc4's

which one of those should be my final subs?

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[myjaja 10+ year member]

seems like the dc xl and fi btl n2 are tied in the poll?