a_steezy Posted January 5, 2009 Report Posted January 5, 2009 for the 12" memphis PR (250rms) sub the smallest ported enclosure for two 12's is 3.5ft^3 ima be running four of them so four 12's at a minimum of 7ft^3...? for example, for DC Lvl 2 12's, the smallest they say is 2.5ft^3 and biggest they reconmend is 3ft^3 which is still under memphis's minimum just kinda seemed big to me, idk though obviously it's what memphis reconmends but how much space would you give these guys? '98 Dodge Durango 5.9L 5% front windows, 2.5% on all backs Alpine CDA-9883 Kicker ZX350.4 Kicker KS650's in all doors Kicker 1/0 hyperflex
a_steezy Posted January 5, 2009 Author Report Posted January 5, 2009 also how much port area do you think they'd like? im going for around 35hz. '98 Dodge Durango 5.9L 5% front windows, 2.5% on all backs Alpine CDA-9883 Kicker ZX350.4 Kicker KS650's in all doors Kicker 1/0 hyperflex
banginAltima Posted January 5, 2009 Report Posted January 5, 2009 For "daily" listening, 6 to 6.5 cubes with three or four Precision ports or somewhere around 90 square inches of slot port would be fine. If you build it, db's will come... NSPL World Record Holder Trunk 0-1800 watts---147.9 with 1722 clamped watts @ 40Hz(9-20-09). Competition Only Record Holder Trunk 0-500 watts---148.1 2006 Nissan Altima 3.5 SE Currently Rebuilding.... My 150db Plus Trunk Build I do box designs. [benH] 6:24 pm: clipping doesn't really hurt subs [benH] 6:24 pm: being an idiot is what blows subs
a_steezy Posted January 5, 2009 Author Report Posted January 5, 2009 For "daily" listening, 6 to 6.5 cubes with three or four Precision ports or somewhere around 90 square inches of slot port would be fine. awesome, that's another thing, i've never used precision ports but i'd love to try them out, if i went four precision ports, how big do you think they should be? like i said i have no expierence with them, but i'd like to learn. i'd think to go with four 4" ports but idk '98 Dodge Durango 5.9L 5% front windows, 2.5% on all backs Alpine CDA-9883 Kicker ZX350.4 Kicker KS650's in all doors Kicker 1/0 hyperflex
banginAltima Posted January 5, 2009 Report Posted January 5, 2009 Four full length ports in a 6 cubic foot box is around 33 to 34 hz or so. psp-inc.com say 6 cubes and four ports is 34.5 hz If you build it, db's will come... NSPL World Record Holder Trunk 0-1800 watts---147.9 with 1722 clamped watts @ 40Hz(9-20-09). Competition Only Record Holder Trunk 0-500 watts---148.1 2006 Nissan Altima 3.5 SE Currently Rebuilding.... My 150db Plus Trunk Build I do box designs. [benH] 6:24 pm: clipping doesn't really hurt subs [benH] 6:24 pm: being an idiot is what blows subs
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