Need some explaining on some stuff

first you need to figure out your dimentions so you can get the internal air volume matched up to the subs you have.

 

http://www.crutchfield.com/S-3GB3idIP9ZN/cgi-bin/ProdView.asp?g=520&I=1081050W

could have got em for 90 bucks a pair.. aka 45 dollars each from crutchfield but no matter. Looks like they want .75 airspace sealed each so aim for that.

 

Not much louder just lower extension...as the lows will be more prevailent than in a smaller box.


That coiled up stuff is just to seal up around the basket of the subwoofer when mounted...here is some

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=260-540

Also you can just use rope cock to seal it up

 

Screw what box down to what box???? lol its ok man we're here to help you not screw anything up

 

Well you can use L-brackets...just be carefull of where your drill through the floor pan as not to drill into any lines or the fuel tank

 

why not use the L brackets on the seat bolts.

 

Good idea Pedro

 

Talking about wire...smaller the gauge the bigger the wire

 

speaker wire doesn't need to be any bigger than 16 gauge...biggest I'd do for subs is 12 guage...and thats like if you're pushing like 2000 watts

If you have a high power amp than yes bigger power cable and ground are better

 

i didnt read through the whole thread. i just wanted to say that i had a pair of reference 12's. they are great subs for the money. they sound clear and deep, and have high sensitivity. you will like them.

depending on what he wants for them (or if you were gonna buy new ones), crutchfield had (i think they still have them) the better series on sale...the kappa percect's. you can get 2 for $179..the references are $100 each. its actually cheaper to get the better ones while they are on sale.

EDIT: as far as power and ground wires, i would go with 4-gauge. 8-gauge will usually get you by, but i have seen them get burn if you try to pull too much juice through them. most amps these days accept 4-guage, and if you go to add on other amps, you wont need to re-run a bigger power wire.

 

I've heard both the Reference series and the Perfect series...both sound awesome and work very well and sound awesome in sealed boxes