ported vs sealed box

I have a 94 Caprice that I'm wanting to put 2 15" subs in...what will give me the best/biggest amount of bass, a ported box or a sealed box? If it's ported, what direction should I face the ports?

Thanks

It depends on the speaker. Most ported boxes need to be bigger and if you port it you could cut them through the rear deck so they bounce off the back window

sealed is your best best. my opinion. i had two jl audio w6s in a sealed box in my celica and they rocked that fuckin car

Its basically personal preference, sealed boxes have tighter, cleaner bass. Ported boxes put out louder, but sloppier bass. And to 15's are alot for a truck, id go with a couple of really nice 12's if i were you..my boy sean had 2 jl audio 12w3's in his lumina, then switched to one 15" MTX and it sounded like sh!t because there wasnt enough air to move.......

*didnt mean to write truck, i meant trunk*

If you want the biggest amount of bass, ported would give you more. But ported boxes are generally bigger than sealed.

Edited: 10/2/2005 8:05:13 AM by CHOSN1

CHECK THIS LINK OUT Brent's caprice has 2 15" DD subs in a ported box. It is loud as fuck

Man that link fucking sucks it don't even show his system.

if u want higher spl go with ported and face the ports either up through the rear deck or to the rear bumper if u tune the ports just right it will sound just as good as a sealed box but will hit a lot harder

ported boxes (vented enclosures) require a alot of tunning (correct air space, port length and diameter etc) to run effectively. a small variance in enclosure design on a vented enclosure can make a huge difference in quality of the sound either good or bad. 2 15" subs is alot of bass, but if you're wanting to run them then i'd recommend a sealed enclosure unless it's going to be an spl vehicle. 15" subs by design do not have the same accuracy (punchiness, and response) as a 10 or 12" sub so in a vented enclosure there response will be even less, but you wou would get more spl at cetain notes than on a sealed enclosure. the problem w vented enclosures is again the box design has to be nearly perfect, takes almost twice the amount of air space (on 15" subs you'll need roughly 4 cu ft per sub for a vented enclosure depending on the sub) so you'll lose the vast majority of the trunk, plus you'll have to worry about getting it to look asthetically pleasing (tough to do on an 8ft enclosure), also on a vented box, you'll have what is called port noise (the air rushing out of the port). and, on a ported enclosure, anything below the tunning frequency of the port will be in audible (you won't hear it, and you're sub will flop around doing voice coil damage trying to reproduce those notes). i've always had tremendous success with sealed enclosures in every vehicle i've built. they offer better sound quality, are more forgiving in box design, but require a bit more power and don't play quite as loud as ported enclosres. however, with 15" subs, id go with the sealed enclosure, plus in your application it seems almost fitting. face the subs to the rear of the vehicle and make sure they fire straight into the rear of the trunk. a 15" sub has a huge wavelength that will have to equalize over about 15 ft in order for you to actually hear the sub. (ever sit in a car or truck and know the subs are pounding but it just isnt that loud? then you roll the windows down and whola! it's suddenly loud? that is wavelentgh in action, the actual air being moved has time (space to reach it's peak. if you were to fire the subs straight forward into the rear of the seat, you'd have horrible results and a very large deadspot. the subs would be louder outside the vehicle than in it. good luck with it!!!