mofo Posted April 11, 2008 Report Share Posted April 11, 2008 Ok, i have 4 8inch MA Audio subs. Im building a box and i want it to be ported. The dimensions are gunna be 40"wide, 14.75" tall, and 20" deep. Idk how big my port needs to be, any help? idk what i should tune it to.. 32? 36? 1987 HONDA CIVIC (1) Pioneer Head Unit (1) Kicker KX650.4 (2) Alpine Type E's (4) MA Audio MA80XE's Link to comment Share on other sites More sharing options...
aquill1 Posted April 11, 2008 Report Share Posted April 11, 2008 I like those ma audio's...sorry I can't help on the box...you try any of the sites that have box builder guides? JL, re audio and a few others have em until someone helps you here... Link to comment Share on other sites More sharing options...
Torres Posted April 11, 2008 Report Share Posted April 11, 2008 5 cubes of air for 4 8's? i dno...but to me that sounds kinda big? not sure really...havent played around with 8's but either way...4" tall, 5" wide, 7" long tunes it to 32 hz. 4.5" long tunes it to 36.4 hz Link to comment Share on other sites More sharing options...
Noobtastic14 Posted April 11, 2008 Report Share Posted April 11, 2008 i happened to write down your external dimensions before leaving for class and drew this up blind: its 1.25cuft per chamber 3" aero @40hz -Drew I am a United States Military Arts and Crafts Professional. Sand it off, Paint it on. uhoh_45 said: dont be a pussy P give the jeep to drew Link to comment Share on other sites More sharing options...
jonathancullen89 Posted April 11, 2008 Report Share Posted April 11, 2008 yeah 5 cu^ft is big, go like 3cu^ft tuned like 38hz. good luck 1992 cavalier build 1992 blazer s10 kenwood cd hifonics hfi2500d 6 soon to be 12 12" hifonics hfi12d4's shit ton-o-wire Blurred Vision Audio Team SMD feedback/refs. clicky!- Link to comment Share on other sites More sharing options...
DDSPL-I AM A SCAMMER Posted April 12, 2008 Report Share Posted April 12, 2008 i wouldnt tune 8s below 40hz. 8s arent exactly meant to be low 'bass' producing subs(dont get me wrong, some can) Link to comment Share on other sites More sharing options...
Ray Posted April 12, 2008 Report Share Posted April 12, 2008 How does the SIZE of the driver have anything to do with the freq response? I would do 50sq in of vent tuned to 35-36hz 3cuft after. 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
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