he WANTS to go ported. DO three ported, way louder, and tune low, its a lot different than sealed. I can tell you dont have very good lows from the video.
i was going to put 4 12s in my accord but dam it was going to be too much work and even tho the seat lets down i would have had to cut metal to have the subs face towards the cab and have a port go up thru the back dash ......sell the 12s and go with 10s it would be alot easiser to port and have all in there as well and still have air space for each
You know what... 10s would be a good IDEA. But I like how 12s respond...
My lows are VERY good. My SubSonic Filter was on like 50+ and I didn't know it @ the time of the video... Now it's @ 15... Where I want it. Trust me, I have lows.
How about (4) JL Audio 13.5w1s sealed? I heard 2 sealed and I was SHOCKED! But they only handle 200wrms...