help with subs for a hatch

I think i am going to go with a 15'' FI BL sub, and build my own box.

heres a link to the sub:

https://ssl.perfora.net/www.ficaraudio.com/sess/utn;jsessionid=15480581f59da12/shopdata/0015_BL/product_overview.shopscript

Now th only problem i have is that when you buy the sub there are options for upgrading the sub like: P Chamfer, Cooling, Flatwind, Daily or SPL, Extreme lead, and universal or not. I dont know which upgrades i should get because i dont understand what they are. The other problem i have is if i should get dual 1 or dual 2 ohms, and what amp i should get to run this sub.

 
No i still need to buy an amp, and i think im pretty much sold on the 15'' FI BL, i just have to choose what options i want on it and figure out what amp i should get.

Will that sub beat super hard like ive heard from people?

 
Whats the difference between the Q and the bl? What options would i want to get? What amp would be best for this setup?

Again sorry about all the questions im still learning.

 
Whats the difference between the Q and the bl? What options would i want to get? What amp would be best for this setup?
Again sorry about all the questions im still learning.
for your power the Q would be a better / cheaper option. There for sale all the time. No matter what, the box is the main thing you should be concerned with.

90% install / 5% equipment / 5% beer

 
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