There is not a correct answer to that question without more information. First it is important to realize that bigger doesn't mean better when it comes to speakers.
The important factors are the listening styles. What are you listening to? do you like tight accurate bass or loud deep sloppy bass?
There are a lot of factors. if in the correct box and the right speakers, a 10" can sound as loud as and more accurate than any 15 could. but if your just looking to annoy the neighbors with loud sloppy noise, go with the 15" in a ported box..
Keep in mind that almost all serious competitions have been won with 10s. 15s cannot rebound fast enough to be accurate but they can move some air..
Good luck with whatever you choose..
Slot Port
A 12 inch by 12 inch square is one square foot. That means it would take 15.
The Kicker CVR subwoofer comes in sizes such as 10", 12" and 15". You can purchase these subwoofers online from the official Kicker website online store.
For 15 Years boy average size is 5 Inch and 7 inch
A 3 inch wide carpet.
i have always ran jl audio and kicker products and have never had any problems out of either...i have 4 15'' kicker cvr's in my escalade at the moment with 2 kicker 1000.1's running them and they are very loud...the sound quality of the jl is a lot better though and if you go with jl your going to spend more money
15 for 1.79 is better as it is about 0.12 each, whereas 12 for 1.49 is about 0.124 each.
15 inches is 5/12 of a yard because there are 36 inches in a yard
181 - 1 = 180 180/12 = 15 15 feet 1 inch
27
12 of them.
Cut your inches into 12 inch pieces. 187 /12=15 feet 7 inches