need a fart box design

[MemphisCherokee 10+ year member]

looking for a design

for 2 memphis PR12's

max dimentions: 20 deep, 18 tall, 40 wide

t/s:

fs:32hz

vas:2.16 cf

mms:136 grams

xmech:.352 in

qms:5.37

qes:.42

qts:.39

sensitivity:88 dB

coil diameter:2 in

Bl:15.41

coil config: single 4

2 drivers

250w each

im looking for purely SPL

total fart box

around 50 Hz or whatever will get me the most output

honestly, i'd rather not pay for the design, im broke enough as it is

i would usualy do it my self but i dont have the time right now and ive never built a purely spl box

all i really need is airspace, port area/length, and orientation

Click to read more...

 

[MemphisCherokee 10+ year member]

actually, im less looking for a straight up design as i am looking for suggestions and opinions concerning size and tuning/ orientation

its going in a jeep cherokee

 

[CaliforniabOY5 10+ year member]

put paypal ready in your title and u'll have more than enough ppl wanting to help //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[MemphisCherokee 10+ year member]

thats the thing, im ****ing broke, hahahaha

 

[Louisiana_CRX 5,000+ posts]

Do a CRX style box...subs up port back.....put each sub in a 1.5 cu ft chamber counting port and basket displacement...use 2 5" ports per chamber...PVC or aeros even better if broke make your own....make each port length about....16" long.....You should be set....//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[MemphisCherokee 10+ year member]

allrighty

thanks alot

now, port back, this is in the trunk space of a jeep, so.... should i but the back seat down?

 

[MemphisCherokee 10+ year member]

i didnt even pay attention, i thot u sed port forward

anyways

thnaks alot man

 

[Louisiana_CRX 5,000+ posts]

Try to fit the box so the port is about 7" from the rear hatch ....Have subs firing up as close to the rear seat as possible......The box will probally be sorta shallow...make sure you have at least 2" below the magnet so the subs can breath...If you share chamber....with subs...I would...put the ports fairly close to each other side by side ...and have them opposite of where your vehicle meters best from.....For instance...you meter best on passenger side...have the two ports on the drivers side of the box towards the rear.....Hope this helps //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[MemphisCherokee 10+ year member]

thanks bro

very helpful

i owe ya one

barely missed 3rd place last night and i intend to take atleast 3rd at battle of the highschools later this month