Alright I have a 96 integra and all that I can fit in my trunk is three 10", two 12", or one 15". I was thinking of using sony xplodes, the dual voice coils ones for around $100 to match the red car and interior mods. I was planning on running about 300 watts or so. What is your opinion or other options?

 

i think you should go with 2 12". 2 12" is more practical IMO than 1 15". oh and for the sony..i wouldn't get that. i've heard them b4 and all i can hear is...thump thump thump...not really a good SQ sub nor SPL. for $100 a piece...i would get cerwin vegas instead. http://www.competitionsound.com/vega12d4.html

 

go with 2 12's or even buy 1 nice 12" and spend te rest on a sweet amp.... u can always paint what ever sub u buy to match your car

 

To create bass you need to move a lot of air. I assume you're planning to run these subs in enclosures and not with an infinite baffle system. As such you have to consider a couple of things.

1. Impedance: Ideally you want to run the subs in 4 ohm mono. If you run lower impedances (1-2 ohm) you greatly increase the current demands of the system, and introduce the need for great increases in power supply. Running 3 subs becomes tricky - due to Ohm's law. If you run them in series, your combined impedance of all the speakers is going to be weird. Personally I would stick to two or one sub if you're running only one sub amp.

2. Enclosure volume: The 15" sub is going to need a huge enclosure to work properly. Even if you use a driver that uses small enclosures (like the Solobarics) it would likely fill the rear of the car. If you make an enclosure that is too small, the speakers performance will be degraded. Two 12" subs still need a fairly large enclosure too. That's why a lot of people run 12" and 15"s with infinite baffle setups where the whole trunk functions as the enclosure. In a similar fashion, generally speaking the larger the driver, the larger the amp you will need (and also the larger your current demands).

3. Music preference. I would assume by your interest in having a multi-sub setup that you either listen to rap or dance music. This requires careful planning with respect to the rest of the system (mids/highs) so you don't overwhelm the rest of the frequency response of your system. Nothing sounds worse than an ALL BASS system with muddy/sloppy performance.

FYI Total cone surface area:

3 10" subs = 3 x 3.14 x 5 x 5 = 235.5 sq. in
2 12" subs = 2 x 3.14 x 6 x 6 = 226.08 sq. in.
1 15" sub = 3.14 x 7.5 x 7.5 = 176.6 sq. in.

So with the 3 10" you will be able to move more air and thus your theoretical SPL can be higher, but the frequency response will drop off at a higher Hz. The 15" will move less air (lower SPL) but will be able to play much lower bass at a louder volume.

Also 300 watts is pretty conservative for 3 subs (even one). If you're planning on getting your money's worth soundwise out of those subs - you will need to feed them more power. I ran 600 Watts mono in my system using two 12" subs.

Dual voice coil subs are not any better than SVC subs IMO. Their power handling capabilites are higher, but the subs are less sensitive (require more power to play sound at a certain SPL than SVC subs). They are also heavier.

 

your best bet would be 2 jlw0 with 150wrms to each....... that would be the best bang for your buck.......

its not all cone size it is also about the excursion(how far the sub moves lateraly)
for best spl and best listning go with 2 12's they will hit beep and go loud..