All the bass stuck in the trunk, but i need it in the cabin!

hey whats up guys i've been askin around to see wha people think and suggest, i have 3 12" bazooka p miller subs in a sealed enclosure at a cubic ft each (which is the standard specifications on the subs) they pound hard and sound real good but the problem is i own a 95 cadillac deville and from what everyone tells me this is a common problem about all of the bass staying in the trunk and not going into the cabin for cadillacs, but what if i were to make a custom bandpass enclosure where the port(s) leads into the cabin and where the sound would come out through, let me know what you guys think and these are the responses i have gottin in other forums and opinions..

(which is what im not what im not going to do

1. go with better stuff (not gonna happen cuz like i said it sounds amazing when you open the trunk so the problem is transfering that into the cabin)

2. build a ported box (thats not a bad idea but i dont want to eliminate that much space in the trunk because the standard specifications for the ported box on these subs is 2 cubic ft for each sub meaning 6 in total which would leave me with no trunk at all)

3.dynamat the trunk (good idea but thats still not going to solve the problem)


now here is what i have done so far, i went and cut 2 4" holes on the top deck in order for the bass in the trunk to travel and at first it wasnt all that great because the car had been hit in the past so the air would just leak through the sides and bottom which then i fixed with window foam seal which actually worked great and now i can actually feel an air flow coming into the cabin but very small. then i played around with "bass box pro" and basically designed a box over mine which means i would be using my old one and some how attach another box to it but just 6" more of depth and not separated cahmbers and have four 4" ports at 2" in length each and there, there was an increase of about 1 to 2 db's which basically fell in the middle of a ported box (i calculated the sealed and the ported according to the specifications on the program in order to see the difference on the graph, and the bandpass fell in the middle, which would actually come out the cheapest if i could just work with the one i have) and lets the air flow of the subs only come out through the ports which are leading them into the cabin, so it basically doesnt stay in the trunk and has only one place to go.


let me know what you guys think..

 

thank you, thank you i feel very gassed right now lol, but um have any of you guys used "bass box pro" or any similar subwoofer enclosure design programs, where you could check if my calculations are right or if im pretty good with the design im planning to go with as described above?

also what do you guys think about me using the existing box, because i honestly rather use the one i have and some how attach the new second chamber to my existing sealed box (i paid 100 for it on ebay, and it would suck to have to leave it in the closet or sell it for cheaper) which would only be 6 more inches of depth.

also for the space in the trunk, yea fstrfvo your right, but atleast i'll have 1/4 of the trunk which isnt that bad, because i can still store small things like the tool bag and booster cables etc. just no more picking people up at the airport lol, oh well lol..

 

oh wow i didnt think there would be a problem building a bandpass for them considering they can work in a ported box, and i figured since it was sealed in the first chamber to a sealed enclosure's specs, that it wouldnt be a problem, but i think i might have to call bazooka to get the specs on what the first and second chambers should be..

 

caddy your right but the problem i have with my car is that it has a brace that forms an X right where the arm rest is, so if i were to remove that leather then the X which is the color of the car would show, which i honestly dont think looks the best, and the only thing i can think of is cutting the X so that it doesnt show through the arm rest, but i honestly didnt want to go through the trouble of cutting all the leather and removing the seat etc. to see if it actually improves, because remember i cut two 4" ports on the top and it only got a tad better, but not even nothing actually noticable, so this time i want to do it where it actually works, so thats why i've been thinking of the custom bandpass enclosure..

 

lol dam i got the colgate smile right now lol because i really want it to pound harder in the cabin, so im definitely gonna try taken that leather off, now i just gotta go to the cadillac forums to see how them dam rear seats come off of the deville (right there i'll change the 6x9's also)

 

ok caddy, thanks for the help but i wasnt tryin to compete with anyone, and believe me ive had jl audio before, i know exactly what jl audio is because the minute there first amp came out which was the 500/1 i bought it brand new for 475 over 4 or 5 years ago, with 2 12w3's to it, when jl audio wasnt repped by funkmaster flex and all these tv shows, so i definitely know what jl is, my piont this time was to prove to people that i can come by with some cheap ass subs and amp and hit hard, caddy i paid 325 for my whole bass set up, 100 for all 3 subs, 125 for the rsa800.1d and 100 for the box, all off of ebay, mind u with 325 i wouldnt have been able to get 2 12w6's on canal st. out hea in ny, so im pretty proud with the gay set up i have, as long as it turns heads when i pass by thats all i need..

 

yeap i tried that also, and really didnt notice any difference in the sound or spl