4 12 pioneer champion series subs

I have 4 pioneer premier champion series subs I have 2 questions that have just been eating away at me lol. I was wondering 1. should i go with a sealed or custom vented box and 2. I have 2 Kenwood 1800 watt amps, should i run an additional battery or a high powered capacitor? HELP IS NEEDED!Life is what u make of it so make the best of it

What type vehicle is this going in?

if you want to be loud and have enough room go vented,but if you are doing 4 of them you are going to need alot of room to build that box to spec....from what i understand  a cap is only good for sound quaity setups,its made to loose voltage and bring it back quick.....but i could be wrong....but with that much power just put a yellow top under the hood and some kind of dry cell in the trunk....and you can also do a cap just make shure you put it in after the battery or you will beat the purpose of it......good luck...should be loudMECP BASIC                 

1. depends on the overall sound you are looking for and space available. 2. If that is RMS rating you are looking at more than just a battery or cap. You are looking at a high output alt and big 3 at a min. Need to know the vehicle to help any further.

they're going in a 2002 grand marquis. I have a vented box, but the vent is actually facing towards the tail of the car so its like the box isnt breathing enough. i only have 1 of the amps hooked up now and a 2 farad hybrid rf cap. it sounds pretty good but being an audio nut i want it louder and wit more "pressure". also, what do you all think of power acoustik amps? i was looking at the 4000 watt bamf. pros and cons of the amp?Life is what u make of it so make the best of it

Make sure the port has as much room to a wall as the opening is. So if say your port is 3 inches wide. You need to have at least 3 inches from it to a solid surface, like a trunk wall. As for the power acoustik amp. PROS: PRICE CONS: It is cheap. In every since of the word. There are much better amps out there.