SPL & SQ / Fabrication

my box is going to be 7 cubes after displacemets. box is 20 inces deep (so one port side can be 18.5") 112 inches of port area, 33hz my question is, can i do two ports, each 18.5"x3" at 12" long for ~33hz would that yield a net port area of 112 and keep the 33 hz tuning? if not, how do i go about calculating this? im going to try to do a drawing real quick to help you see what im doing

I been going back and fourth for the past few weeks about doing a enclosure to go under the rear seat in my truck. I entered my measurements in the enclosure calculator on the12volt. and i came up with 4.7 cubic ft but it have the transmission hump thats right in the center of the floor and i dont know how to subtract that from the total that i got from the enclosure calculator....do you guys think and enclosure like this would work with a external port? Im still looking around for some good 10's that would work with 1 cubic ft or less

I want my subs to face up with the port up like one of my previous boxes. I cant seem to get a lot of input and like Ive said previously the pro designers dotn wanna mess with a camaro enclosure. Assuming ive done my math correctly does this look like a suitable enclosure? I just started using sketchup so I have figured everything out so nothings 45'ed or anything.

i am doing a 4th order in my grand cherokee and was wondering what would be a good sealed chamber and ported chamber. Equipment i have right now: 2 18" DC lvl5's 2 Sundown 4500d's 1 300 amp powermasters alt 8 3100's

Is each quantity for a 17" Long tube? What if it needs to be longer? 4" Port Tube

Come summer/next fall id like to hit a few competitions and then head to daytona even next spring break. Because ill be finished with online classes and im officially done with soccer. the onlything preoccupieing my time will be work and cross country. As for ocmpeating, im doing competition on a budget. Id like to run my BX1205D it even less for power and run maybe a pair of 12's. Im thinking a pair of 187 12's in a 4th order bandpass. Ive always wanted to build "The Wicked One" to see how it performed. The 187's seem like a good canidate. Reletively high efficency, good Xmax, and reletively low inductance. For Competition i would build one with a wider throat for high…

ok guys, its time to get some plans going for this box. im using 2 12" ssa zcons and pushing them with a audiopipe 3k (ONLY UNTIL I CAN AFFORD A BIGGER 4K+ AMP) so its not my perminant amp here fellas. i took my max dimensions tonight and used a box calculator and i have 6.81 cubes to work with. as for tuning, im not really sure. i like my lowwss (30hz or so) but i want to be able to throw up decent numbers. i was thinking 34-35hz maybe?? not really sure. thats why im here asking you guys for help on this so i dont waist my money.

This setup will be in a 1985 celebrity wagon. I want insane, air moving hard hitting lows. Two different setups.... 1. I was considering a wall running directly behind the front seats with 4 L7 15's and the most port I can run and still have a low tune. I'm guessing about 300 square inches of port. 2.Another idea I was considering was running a huge box with subs up and port up that starts with the box directly behind the front seats and takes up all cargo area, but keep the box just tall enough to have the port firing on the angled back glass. Of course the port will be as big and tuned as low as I can logically make it. On the 2nd idea I was going to run a lot more c…

I am building a box for 2 XCON 18s and am trying to get as close to recommended specs as possible. box is going in a 99 Durango. i really want my subs facing forward so people can see what they are feeling! But not sure about where to place the port. SSA recommends 100 inches port area for each sub, so only real options on location is on the front, bottom; or facing the back hatch. i noticed a lot of street rides have the port facing the hatch for whatever reason. any input/suggestions will be greatly appreciated

Would it be better to but 45's here or would it be bad? The pics will explain it better. Option A. Option B. There are two, one on each side of the port. The box is 48" wide and the port is at the bottom in the middle, and is 30" wide. There is a 45 on the back opposite of these.

I know the pic is small and I'm not saying I will do this(but hopefull) Should I be concerned about cancellation problems or is this design ok

((2 * 250.3125 * 10) - (0.159230769 * 2 * (12^3)) - (30.830229 * 2)) / (12^3) = 2.54299074 cu ft. That’s with port, sub, 45s and skeletal displacement taken into consideration. That makes the box tuned to around 34.02Hz if the math is correct..... let me know guys, what you think it is for 2 dc audio xl 10"s powered by an aq3500d1 in a 1ohm load, think my tunining is to high? still able to hit the lows you think? i wanted to be able to play normal music as well since its my daily driver 1st real build so im just taking everything into condsideration since this box is built already just waitin on my other d3100 to come monday

I was messin around and just seein where the power wire would go through, and i realized that the firewall already in use for the factory wires was pretty much full, and i don't see how 1/0 is going to squeeze in there. But a couple inches to the right and one or two inches above it, theres what i'm guessing is an unused firewall hole. Its a rubber surround with a rubber filling. I tried to see where it came out on the engine side, and i couldn't find it. Does anyone know if i could (once i find the hole, as it was a little dark when i did this) puncture the rubber filling and take it through there? If not, what should i do?

Working on some fiberglass corner enclosures on an upcoming build for someone and i noticed that the corners that they will be installed in are slightly different. since i was going to begin by making the backs to rest perfectly flush i am wondering if having slightly different airspace for each side, say .1 of a cubic foot. would cause problems. I would say the left box will be about .9 sealed and the right would be about 1.0 if anything. should i add an extra piece of MDF to the bottom to compensate? i didn't know is the different Fs would cause some type of clash in the response

Ok, so this weekend I plan on pulling out my box and putting the zcon's in. 2 12" 1 ohm z's goin in. Gettin the diehard platinum marine sat nite and puttin the saz2500 in. Rt now my box is 4.75^3. Its an angled box to fit behind the seats of my 3 door s-10. I have another 4" of room I can go up. That would be about another 1.4 cubic feet or so. Rt now the port is on the side and has about 78 inches of area. 19.5 wide by 4 tall. Is that enough or should I make it bigger while I have it out? Or should I leave it alone? Also what would be a good gauge of wire to run for the subs? I cannot wait to hear these z's rumble!!!!¡¡¡¡¡

ok so i want to make a box with 1 15 in the middle and 2 poorts, 1 on each side, to get it how i wanted it ported, could i just measure out the space i would need for 1 port and just put half of that on each side?

This is it, the last event of the year for Northern Music & Video and the 2nd of 3 stops in the "LOUDEST OF NY" events where the winner will be crowned in Oswego on October 2nd at the last Ultimate Edge show. Here is all of the event info: Northern Music & Video's Thunder in the Park *No SQ will be offered. IdbL only. *Event Location-Colonial Village Fun Park 578 SH 11B Potsdam, NY 13676. *Registration begins at 10am, show begins at NOON! *Registration fee-$15.00. *Offered classes:Stock 1-160, Stock 161-260, Stock 261+, Advanced 1-260NW, Advanced 261-360, Advanced 361+. *1st, 2nd, and 3rd place trophies for all offered classes. *Many giveaways!!!! *Be sure to ge…

i've posted this in other forums too, im just trying to get as much input as possible. this is for tc3000 12"dvc. several experienced people have recommended around 2 cu, but i've done some more reading and it seems that they recommended for SPL purposes, you want to use a large enclosure and port. But im not going all out SPL, i just want a REALLY LOUD daily setup, so im just going to experiment and try something in between. I've decided to go ahead and try 2.75 @ 33. i chose to use 15.5 sq in per cu ft since 15 and 16 seems to be the commonly recommended multiplier; the port area comes out to about 42.62 sq in. my max height is 13.5 so my width is about 3.157. i used th…

can the single of a L-ported box be divided into two? instead of one port on one side and the sub on the otherside, it will look like ports on both end of the box with the sub in the center? if its possible, is there a calculator online for that? thanks...

Hi I am starting my build very shortly and I have a question on making the sub box. I have made L slot port boxes before but for my 2 12" Fi SSDs I want to make the port in the middle. So the question I have is can I make it by just calculating for 1 of the subs and just build it together? Space is not an issue. Thanks ahead for all the input

im looking if you have some photos of pvc tube with aeroport im looking forward to prove this on my car thanks i have some photos and i wanna see if you have som more for the experiment thanks something like this but i want to put 3 aeroport per pvc tube some smaller aeroport to check if this is better than sealed pvc ohh its for 15 RE XXX

Are 45*s needed with in boxes that use PVC tubing as ports? Also I designed my box using Win ISD and was told to make the box roughly 2.0 @36hz and use 10" of 4" pvc. Now does WIN ISD take in to account for the space taken up by the PVC or do I have to make the box larger?

Do crx boxes work in a trunk with the subs up an ports faceing the back?

just starting to figure these enclosures out a little. any one got any info.

Has anyone ever used it? How does it work? Is it worth $17. I want to spray the inside and possibly outside of my sub box with it but I don't know if it is worth it. Should I just get some spray on bedliner in a can and use that instead? I was hoping it would created a better seal and add strength to the box.