SPL & SQ / Fabrication

hey guys i got a question for ya. im building a box for 4 15 fi ssd's and i was wondering if a box built at 15.5 cu ft. net and tuned to 32 hz with 200 sq in. of port. its going into a blazer. think this box will work? any info would help thanks.

hey im workin on my new box and im puttin mirrors in side and i need to know how to get them securely attatched where they wont fall off later does anybody have any suggestions ?

What numbers are you hitting with windows up, vs down? I need some numbers for this thing I'm doing. Thanks!

whats up yall i just finished the box today for my custom forevrbumpn kevlar 12". box is 2.49 cubes after displacements and tuned to 33.2hz on paper. pics you say?? and heres some of the sub...

I've got one of the few remaining 18" Inhumans that I desperately want to hook up and listen too before I get rid of it. I designed up a quick box in WinISD and came up with these numbers. How do they look to everyone? 8ft^3 tuned to 34Hz 98" of port, 20.31" in length Nothin special, just a good daily driver box.

Im designing a new box for my FiQ for my blazer. I was was wondering where the sub and port should go? Sub up firing, port rear firing? Also if one or both rear fire how far from the tail gate should it be? Thanks

is there any discernible difference between a square port and a circular port. I'm thinking about using a circular port tube from somewhere like Elemental designs. Mainly due in part to my lack of knowledge and how to build a ported enclosure.

I remember playing around with making boxes and stuff and had some different software. I had somebody guide me through it before, I had a box deign for my other truck. But with it, I have to make some decent modifications to it to put a box in it. With my Jeep I can just design a box, go pick up the stuff, make it and drop it in. I think now that I can do that, I will actually pay more attention to how to do a box, have more interest in it. I was recommended subs up port up on the drivers side, not sure if it will fit or not. The max exterior size the box can be is 41.5"w, 16.5"d,21"t... I'd like to design a box myself but obliviously get some help with it. I think if I …

I have a 95 caddi deville, and i would like help in building a ported SQ sub box for two Dcon 12D4's. they will be powerd by a RF power T500-1 dbcp 2010 model. My bass gets trapped in the trunk,so i cut two 4" round holes in the rear deck to let sound inside the car. will the 4" holes change the tuning of a ported box? All help welcom. thanks

Hey guys. im buildind a new box for the sa8s. my dimensions are 56w 16d 8.5 tall. im shooting for around 35 sq in of port and 2.0-2.2 cubic ft volume. the subs displacment is .10 each driver. i put it into the re calculator ( i know its not exact) but i want the port in the center of the box and not one side or the other but thats not an option. i want the 4 subs facing forward and port back. anybody got some extra time to help me out? much appreciated!! Steve

Okay so ive been doing loads of research on parts-express and so forth on finding a sub for a 1974 MGB. I really only want something super small and getting something for better sound quality than just two 6.5's in the doors. Behind the seats is a bit of space but want to keep mostly the stock look. However, there is a compartment where a second battery used to sit that is no longer there and I think I could find a small box in there. I measured the dimensions and can get about .15-.18 cuft gross airspace without making anything look out of the ordinary. I havent found much for the 8 inch woofers or subs that will suffice in that airspace, however there are various o…

About to build a box for 2 15"s FI BTL's that will be going into a 87 Mustang. Each btl needs 3-5 ft^3 and is .21 displacement. This is my first Wall / Semi wall build so i just wanted you guys to look over it and tell me what you think.

Hey guys Im currently out in pursuit of the rookie1 world record in Iasca IDBL format.. I'm using 3 8'' mtx 5500 running them off a sundowns 1500d with a optima d34 up front.. Im limited to port area, 14 per sub so I'm basically playing with 42sq inches.. My current port is 39sq inches and Im doing a 140.1db on the audiocontrol meter.. In my class Im not allowed to use test tones so Im using tracks like 36 mafia-slob on my knob.. Is there any ideas yall could give me to bring my score up? I'm thinking of re-building my box to give each sub 1cub of space each with a solid 42 sq inches of port. Maybe try 45 degree fillers and fiberglass the inside of the box with external…

So after much searching throughout the internet I still cannot figure out how to make a crossover. All I want to do is put a 12db/octave high pass on my 3.5" 2 ways at 500hz and a 12db/octave low pass on my 6.5 midbass at 500. All speakers are 4 ohm. I dont know if I need a capacitor and an inductor for each crossover or just one for each. Can someone please help explain how to do this or hook me up with some site links? Please and thank you in advance.

Ok, I have done the measurments for my truck and i should be able to fit 2 10" icons in my truck. They will be in a 2.5ft^3 box after driver and port displacement. I used the calculator at carstero.com and it says that i need a ~8" diameter port for the box tuned to 30 hz. Would that be a suitable frequency for that size box? If so the only opitions for port size is a single 5" port 27" long, or two 4" ports at 20" long? The single port will be on the driver side firing into the side of the cab, and the 2 ports will be on either side of the box. Will ports that small be choaking(spell check) the air flow, or will they be fine? im leaning towards the 2 4" ports though…

Hi guys, I 'm always trying to improve my system. I have a 15" xcon and a 1500 watts Sundown saz amp. The car is a hatchback toyota Auris, with a little trunk. I had a slot ported box with sub up and port up, at 3.5 ft3 at 32 Hz. This box was too big for the trunk, but I thought it was not the right one for my car. I've heared this same box in a smaller car, with the same setup, and it was ...insane. In my car, it was not really loud. I have, now, a 3ft3 sealed box, with the sub firing back ; I found it was better than firing up. So, here is my question : if I want to do another ported box, what would be the best choice ? Sub and port firing back, or sub up and port back …

Subs: two DC Audio LVL4XL 15's Here is the room I have set aside for the box. I can possibly go bigger. But, if possible, would like to not go bigger. 23 inches high 20 inches deep 38 inches wide I want subs up and the port up. I would like to use a slot port. Tunning could be at whatever would work best with the dimensions given. Anywhere between 30hz to 40hz would be fine with me. I dont know what my cabin peaks at but I have had two setups, one 18 tuned to 32 and two tens, not sure on tunning, Both setups peaked at between 40 to 45 hz. I will be using a US Amps AX3200DE to power them. This will be in a small SUV, 07' Honda CR-V.

POLYURETHANE FOAM the reason im writeing about foam when im talking about fiberglass, is that you can make mold's out of thing's. just fiberglass over it then get some acetone and it will eat the foam and keep your fiberglass mold. they have 2pt. polyurethane foam that is equal mixing self-rising foam. most 2pt. will start foaming around 45 second's after you mix the two, and will go for a few minute's after. now it will expand around 25-30 time's it's liquid form. unlike polyester foam, polyurethane foam it's compatible wth both polyester resin and epoxy resin. (which mean's you can paint the resin on and it wont evaparate) now they have polyurethane foam sheet's allread…

considering doing a box with aero's wanna tune it lower also around 30 hz right now its in 3.4-3.5 cube at 34 hz on 3k rms to get the tune i want and my depth issues guided me here, i hear you need to have roughly the diameter of the pipe distance from flare to back of box for it to be right? so final figure would be 4.25 cubes at 30 hz with 1 6" Aero at 16.5" for that tuning and thats from flare to flare. Should i just go to 2 3" aero's or what do i do hear, because i will be going 16.5"+6"+1.5" for the MDF im too close to the rear hatch, it would be like 3-5" from it

I talked to Nick at Incriminator Audio (Subwoofer Maker) I believe, he said go with 2.5 Cubic Ft per sub and a 70 inchs port in a 6 Cubic ft Box. 2x Incriminator Audio Lethal Injection 12 Inch Subwoofers. I did some further refinements. This is what I came up with Subwoofer Volume - 2.5 Cubic Ft Port Hz - 32 Box Specs: Width - 36" Depth - 26" Height - 14" Net Volume - 6.36 Gross Volume - 5.08 Cubic Ft Volume Per Woofer - 2.54 Cubic Ft Volume Displacement: 0.22 Cubic ft - Woofers .056 Cubic ft - Bracing 4x 45 Degree Corner Braces 1 Cubic ft - Port Volume Port Specs: Port Volume - 1 Cubic ft Port Area - 91.05" Squared Port Diameter - 10.77" Port Width 2" Port Height 12.5" P…

Does anybody know where one us i want to see what i can hit?

Most of you know that there was another vehicle added to the fleet. 1999 GMC burban. Now the old 97 DUBurban had a massive 8ft^3 enclosure in it and housed 2 Brahma 15's. 4000W amp running them. Well this time its all about saving space and keeping everything stealth. My plan is to flip the spare tire around and glass the inside of the rim. Then i'll glass a mdf enclosure onto that so i can get my needed air space. Right now ive got only 4" of cargo area taken up by the enclosure because its to tall and wide. Sub will be my 12.o.44 sealed running off of my autotek 5600X. Bro will be doing the glassing work since he has the experience. No idea when this will all take place…

I need Help for my 10 Xcon I would like A Ported Box, would like to have my tuning around 32 If opti.

Finally picked up a few sheets of MDF to play with to make my explorer box, what should the minimum port area be for 2 15inch RE SX's? So far i have messed around with the RE box tool and came up with a 6.1 Cube box tuned to 34.7hz with a port area of 74square inches. My available measurements seem to be 41 inches wide(before wheel well bumps), 18 inches deep, and i don't want to reach over 20 inches high on the height. If anyone can throw some suggestions at me for the area of port needed or maybe a box design they have used in their explorer it would be much appreciated. Thanks!

i have a fi bl 15 dual 2 with flatwind and cooling. it's going in a trailblazer; although i have a lot of room i dont want to use it all. i need some help deciding on the dimensions of my box and how i want it tuned. I want it to sound good but get really loud. i listen to all kinds of music if that matters. any help would be appreciated.