man i think i missed out on the variable speed fans lmao after 4 years without searching new computers and building them im out dated in techno hahahahaa

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Big box installer (Timmins)
02 GRAND CARAVAN SPORT

SPEAKERS: -6 1/2" component from energy still to come concidering alternatives
-2x Massive audio CW12 in 4.2cf dual chamber square ported at ~35hz

Amps: -DD SS1
-KAC-745

Upgrades: -160 amp alt. maybe
-4 gauge wiring (done)
-0 gauge BIG 3 (done)
-sound deadning the shit out of the van somewhat not done yet
?????????

if you're doing a design like that, then use a class d amp as they generate a lot less heat, set up the fans as the guys mentioned in a push/pull configuration, and make sure the sub box is very well braced (try and locate the amp above a brace), as this will prevent the amp from flexing and breaking internal components.

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2004 300M SPECIAL
Alpine CDA 9833
Alpine Pxa-h701
Alpine Rux-c701
Rockford fosgate p400-4
Rockford fosgate p4004
Hifonics BX 1205D
JBL c608 GTi
JBL p693
Infinity 2.5" center channel
Alpine type R 12"(2)
all active SQL set up with 1900 watts rms

I like your design, has given me an idea for my design im about to build