difference in speaker classes/types/brands
 

a lot of the brands being kicked around here are totally unknown to me.

how're these high end speakers diff from the stuff in crutchfield?

depends on what you consider "high end"?

some people consider infinity high end. others don't give that name, till they reach rainbow audio...

be more specific.

Build quality is a defining factor.

A sub build by SoundStorm is built differently than a sub by Digital Designs.

Theres subs for SQ, SPL, mixed, ported, sealed...

Its all on budget, power available, box planned, space available.

There is just a lot of variables.