four 12s or two 15s

[blackdragonaudi 10+ year member]

2 10's something nice so you don't annoy people when you roll up to a stop sign. Not to mention the damage you may do to your car with that much compression.

 

[illbmeubu 10+ year member]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif Oh my goodness. here we go with the mathematics!!!!

 

[illbmeubu 10+ year member]

It may depend on the install, 2 15"s might not require as much air space inside the box which is good in your case.
i had 2 15"s Audioque HD3's walled in my truck, and i stomped alllll overr 4 12"s JBL GTi's walled in another truck

but i guarantee you that if i had 4 12"s, i would be louder than him if he had 2 15"s, a good design and well built box is key.

spoken like a genius. The key is not how many subs you have, its all about design and correct airspace. I have 1 18" which is know for mainly SQ but I can go toe-to-toe with people with 4 15s out here because their box and setup in general is build like crap. i think you should go with two 15s, make a really good box for em firing into the cabin and seal off the trunk and you should be golden.

 

[Buck 5,000+ posts]

Are you one of these ghetto mofos that wants trunk rattle and all the bs? Because over packing a trunk with subs is going to sound like complete ass.

 

[Towncar 10+ year member]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

Will you be my math tutor?

 

[slam 5,000+ posts]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

LOL

(r * r) * a piece of pie //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[01 S 10 10+ year member]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

did you drop out of school in 4th grade? if not, you should know better.

that is NOT how you calculate "INCHS OF SPEAKER". //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[4OZGLOVES 10+ year member]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

12'S

6X6=36X3.14=113.04X4=452.16" of cone area

15's

7.5x7.5=56.25x3.14=176.625x2=353.25" of cone area.

 

[jamesw 10+ year member]

lol one 12 is 113 sq inches actually.. and one 15 is 176.. the four twelves would be louder with correct enclosure.. Stop being an ignorant mofo and listen to what some of these people are telling you. its not all about how many subs you have.. ive seen a idiot with 12 sony explode 15's think he was hot shit and told me that he would out do me any day and I only had one 15... when it came time for TL i was doing 148's while he was doing 146's

 

[01 S 10 10+ year member]

12'S6X6=36X3.14=113.04X4=452.16" of cone area

15's

7.5x7.5=56.25x3.14=176.625x2=353.25" of cone area.

thats closer, but still not the exact usable cone area. but definitely better to base the measurements off of.

 

[slam 5,000+ posts]

yes, u need not to include the surround

 

[vellocet 10+ year member]

I doubt the proper answer is just going to be handed to you. It's all opinion.

Either way you go, make sure to have a well built/designed box. A buddy of mine had 4 L7 15's crammed into the trunk of an accord, it sounded like A$$. Was a terrible 1st impression of the speaker for me.

Get some solid subs (decent will work) and put them in an awesome install. If you don't worry about all the small details, it really doesn't matter how many subs you have. My 2 cents.

 

[Snow90 10+ year member]

lol at some of the advice in this thread.

 

[andrew2944r 10+ year member]

2 15's = 30INCHS of speaker4 12's = 48inches of speaker

It mostly depends on the box ....but mostly 4 12s would be louder...

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

Two 15" = 353.43 Cone Area

Four 12" = 452.39 Cone Area

How to calculate cone area

Cone area = pi x (r x r)

pi = 3.14 r = radius of sub

 

[andrew2944r 10+ year member]

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
Two 15" = 353.43 Cone Area

Four 12" = 452.39 Cone Area

How to calculate cone area

Cone area = pi x (r x r)

pi = 3.14 r = radius of sub

Go with more Cone Area