Typically the bigger the sub the harder it hits. It also depends on power handleing and the brand. Personally I think a 15" sub is the best size because it definitely is louder than 2 10"s and possibly the same as 2 12's(im sure people will argue this) plus it will probably fit anywhere a single 12 can(check first)
The sub this would hit the hardest depends on many factors but in most cases the bigger the speaker the more power is used to move it. If you want a hard hitting speaker you usally want to go smaller the bigger it get the tone just gets smoother and better lows.
10 in. subwoofer
It depends on the power rating of the subwoofer.
8in Subwoofer from 02-05 explorers
10"
8"
hardest hit area of the haiti earthquake
The prairie provinces were hardest hit by depression.
measure the diameter of the hole for the speaker/subwoofer and the distance to each bolt hole to asure you get the right subwoofer to fit properly.
Composite bats hit the hardest i recommend combat
When building a custom box to hold you subwoofer, size and air space recommended is different from subwoofer to subwoofer. Reference an owners manual online or at home to determine the best size to build your box.
The size of subwoofer is 8 inch
10 Inch