im bout to put 2 mor subs in my Tblazer....my box builr asked what kind of set up i want for my 4 12's, reg or inverted....id there a big difference?
also should i go ported/vented/or enclosed.....

go slot ported and find out what frenquecy the subs a sound gud at so u can tune ur port when u buy ur subs look at the box or papers and see ur port frenquency u gain bass with a slot port and that bitch will pound in all that open area hope this helps

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