C.Sanchez.A Posted January 3, 2012 Report Posted January 3, 2012 (edited) I need to make a new box for my truck and want to try a 4th order. Right now my sub is in a 3cu.ft. box and every time someone opens the door it gets louder. The sub is a Rockford Fosgat P212S4. 12" single 4 ohm voice coil rated for 300rms. I would like to start building it this weekend. Edited January 17, 2012 by C.Sanchez.A Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel
C.Sanchez.A Posted January 3, 2012 Author Report Posted January 3, 2012 I kinda forgot to put the measurements I have to play with . They are 19'' x 18.5'' x 50'' Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel
dwright27 Posted January 3, 2012 Report Posted January 3, 2012 Those external? Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer
C.Sanchez.A Posted January 3, 2012 Author Report Posted January 3, 2012 Those external? Yes. 1 cu ft sealed 2.3 ported What size port? Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel
C.Sanchez.A Posted January 4, 2012 Author Report Posted January 4, 2012 Would this be to big? 2cubes sealed, 4cubes ported with a 6''x6''x10'' port. Giving it a tuning of 42 give or take. Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel
pa-pa-platypus Posted January 4, 2012 Report Posted January 4, 2012 are you rebuilding because it gets louder when you open the door or just to try a 4th order out? what vehicle? Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4
Socky Posted January 4, 2012 Report Posted January 4, 2012 For a single 12, i would do a higher tuning, such as 48hz or so, because of the big box it will already want to peak low, because the 4 cubes is on the big side. Quote Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell Kenwood H/U 1/0 wire, 136 amp alt 200 ah batteries 12.7 daily 2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts Mb quart 125.4 wired to 4 aura 6's 3.6 cube box tuned to 36 plays down to 23hz
C.Sanchez.A Posted January 4, 2012 Author Report Posted January 4, 2012 are you rebuilding because it gets louder when you open the door or just to try a 4th order out? what vehicle? The vehicle is a 1994 Mazda B3000 (Ford Ranger). I'm rebuilding because the box I have was not built for this vehicle and I think this sub would do good in a 4th order. Plus I want to experiment and learn. Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel
pa-pa-platypus Posted January 4, 2012 Report Posted January 4, 2012 alright i was just wondering..and if you were to stick with those dimensions i would go with wat socky said and tuned in the higher 40's...and i would have it loading off of the passenger side wall as that is where those trucks seems to get loudest Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4
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