Help choosing sub

[Alien Mantis]

Originally Posted by talnlnky

8's can play as low as 15's, tho they usually aren't designed too, 15's can be just as tight as 8's... tho people usually don't design their installs to sound that way.

You are correct, but the reason people don't use 8's for 25hz bass is because at that frequency, you need eight 8's to be LOUD.
It's WAY cheaper and easier to just run a pair of 12's instead.

And the same goes for 15's.
If you want tight bass around 80hz, why run a giant 15" sub, stuff it in a small sealed box, and put a big power-sucking amp on it just to make it play tight?
Instead, run a pair of cheap 8's or 10's.
Less space, less power needed.

You are totally correct, you CAN get anything to play anything.
It's just not the practical thing to do.
( but when has "car audio" ever been about "practical" ? )