Peace,
I would really appreciate any and all advise/knowledge regardin' this... I suppose it's best to start off with the specs. the box needs to have.

Ported Box:
Air Space (cu. ft.) - 3.2
Port Size (Inches) - (2) 4x12
Port Vel. (%) - 9.65
-3 dB (Hz) - 30
Tune Freq. (Hz) - 36
Sub. Disp. (cu. ft.) - 0.25
Port Disp. (cu. ft.) - 0.165
Total Vol. (cu. ft.) - 3.5

Surface area of a circle Port = (3.14) x (radius) (squared)


Now that I have the specs., I need to make the cuts from MDF (of course)....once I have the measurements of each piece brokin' down, I'll be good and ready for the build...

Subs. that will go into the boxes (I want to make two)...
(2) Audiobahn Flame Q's
Model - AW1206T

I got the specs. from the "Tech Help" section on the Official Audiobahn site...


As always, I appreciate your time and help...


Peace,
Jem

a few things:

1) you listed the port as being 4"x12", but made no qualification as pertains to a dimension. you later listed a round port diameter, but made no mention of depth. based on your box size and tuning, i imagine you'd want a 4" round port with a depth of around 12". that should give you about a 35hz tuning, like you are looking for.

2) you want to make two 3+cu. ft. boxes? thats a LOT of room to take up, and unless you are willing to 'glass, they both wont fit in the hatch of an eclipse. which brings me to...

3) is this for a 2GNT?

:shhh: i do cocaine :/shhh:

I just wish my car was as fast as it was loud. people tell me i should use my sub to push it, it might go faster.

I also forgot to mention/ask, where would the ports (square) be placed (2 ports on each box)? One on each side of the longer portion of the box -> <_P___P_> (Box1)? Both side by side -> <__PP__> (Box2) in the center of the box? I think it'll best "one on each side/Box1"...


Peace,
Jem

to remove that metal piece you can get a cutoff wheel and cut it off, a torch or what most people do, get a big hammer and keep beating it on its side till it comes off. as far as ports go, it doesnt really matter where you put them. mine is one the side of my box. the best thing to do for our cars is to either point them up towards the window so the sound reflects forward, or build them on the front wall so the sound goes directly forward. if you have AIM, let me know, IM me, im on a lot and i can help you out and get you some pics. ive got photos of my system or i can make you a diagram.

I just wish my car was as fast as it was loud. people tell me i should use my sub to push it, it might go faster.

question:

why would u run the flame Q's in a ported encloser?
Im sorry dude... just with my 7 yrs with audiobahn (sponcership) Ive never had a sucess with a ported encluser... no where near what i get with a sealed..... as for the room.... oh ya bud there is plenty..... i run 3 12" HC's 1.3 cf sealed per sub in a faulse floor where the spare used to go..... trust me go sealed youll be much happier..... and there will be much much less distortion.. (with that perticular sub anyway)


mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)

"The port I assumed would be "square" 4" wide, 12" length/vertical..."

so... 4" wide, 12" tall, and 12" deep? thats .33 cu. ft. of space. in a 3.2 cu. ft. (net) box, your tuning is going to be around 45-50hz. thats getting a bit high. use a round port (aeroports are great) that is 4" in diameter and around 12" long. it reduces your port crossection by 75%, but its still plenty of area to eleminate any port noise, and will drop your tuning into the low 30hz range.

to contridict the above statement, the best box i could possibly build for my AW1500s was 4 cu. ft. per sub ported and tuned to 35hz. of course, that was in a wall, lol. however...i still dont think you will make the space to fit both subs and the enclosure you desire. if you are new to box building i would recommend you go the sealed route first.

one more thing: it DOES matter where your ports are. put them on the same plane as the subs and around 1/2 the diameter of the sub away (so for a 12" sub, you want them around 6" away, although anything close to that is fine. the phasic interaction will be nearly identical as long as its on the same plane). also, never ever ever fire your subs forward (toward the engine side, lol) in an eclipse unless you have a static barier to eliminate cancellation due to wave reflection/interaction (i.e. a wall). ive found that rear firing or up firing are the best ways to go.

:shhh: i do cocaine :/shhh:

I just wish my car was as fast as it was loud. people tell me i should use my sub to push it, it might go faster.

spl good point but that AW is an entirly diff animal than the flame Q...

and as for your box:
i guess the main question is what do u normaly listen to??? if your a spread as i am (listen to everything from house to classic rock to classical)you will enjoy a seal much much more..and as SPL noted above ... with the air space requirments for vented enclosers i will just take up too much room....so either end up building a box that uses the entire hatch space and have it heavey and look like hell or.... so sealed and save yourself the hassle..



mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)

if ya want send me your email addy and ill send ya pics of what i did



mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)

well Mo (owner of audiobahn) said the min is .5ft max is 1.5 ft .... i would give it 1ft per sub sealed..i run my Ultra Excursion's in 1.25 per each ... i have 2 subs inverted and one flush mounted for ultra low distortion at high vol..




mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)

id seperate then... u can put them together in the same airspace... just wire the inverted one backwards


mods include but not limited to:
engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit.
Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)

I just wish my car was as fast as it was loud. people tell me i should use my sub to push it, it might go faster.