SPL & SQ / Fabrication

When doing a blowthrough setup in a pickup, will it really make a difference as to whether the truck is extended cab or standard?

Well I need to know what size recones to order and box to start building.... will either be doing 2 12" zcons in a 6th order ported through rear deck or 2 15" zcons in ported firing into car with trunk sealed off. . Really wanting to be over 150 db's but not just wanting numbers. Wanting crazy daily driver. Did a 145.6 with one zcon 15 on 3000 watts so hoping I can brake 150 .......either 12s or 15s will have same amp. Thinking bc5500 or somewhere in the 5-6k range. Just wanting peoples opinion on which I should go with. Cause wanting to order asap so I can have them before summer

hey whats up guys i have seen on the internet and on a few forums people using bedliner as a sound deadener does it work and has anyone had any good or bad experiences from it

i got 2 15 fi q i got a subwoofer box with the front slanted.. will it make a difference in sound?? i got 2.3cubic feet per sub on the box.. on a 2005 nissan altima running a soundstream rubicon 2500 with kinetik hc600 and rockford fosgate 0 gauge amp kit.. the box is on its way and im worried about will the slant make a sound difference will it decrease the sound quality?? ill be facing the subs towards the trunk away from me. well its in the building process..i can send an email and tell the builder to make it square if it makes a difference..

Ok whats the difference in one box tuned to 35hz with 2.5cuft and another box tuned to 35hz with 3cuft? also whats the best material to build a box out of?

I designed Shogen a box, I just want him to see what it should look like when he's done. And I SUCK at Sketch Up. Who's good?

It's about 7.4 ft^3 with a 13x6.5" port. Two 12" type r's are going in and will be running at 1000wrms. EDIT: What would be best to tune this box at? I'm doing daily and want it to sound good, not just loud. EDIT 2: Listen to mainly rap.

I have a Dodge Journey that I want to put 2 SX 12s in. (By the way, only have one right now, need another. Put the word out, D2) I want to have the 'right' box for it. Not one that a experienced builder can demo and know quickly that it's a crap build. I have been reading the available threads on what makes a vented box a 'good' vented box. But to honest, it seems pretty complicated. I am not a fluid dynamics student. But I am trying to learn. It is hard to narrow down my music style. It's 50/50 between hard rock like Metallica and such, and also rap/hip-hop. I know that doesn't make it easy. It will be running on a solid 2300wrms. I have the whole back available for the …

well since i put in the 2 15" BL's on the sundown 3000d, i have NO windshield flex, a little roof flex which is no biggie, but the worst is the doors...the body panels are so thin and theres just a single support bar inside it, which flexs with it against the body panel. i put Great stuff foam and peel & seal. i know peel and seal isnt real deadener, but ive used it before and itll deaden sound for sure, maybe not as good but itll do the job. well it did hardly nothing. what would solve it is fill the whole door with expanding foam but that isnt an option, becuase i obviously need the windows to go up and down. any ideas? pics of my door panels should be in the wall t…

I got JBL GTO 1514 single voice coil 4 ohms. 350WRMS, 15 inch. It came with manual and says Vbox 3.50 ft3 Fb 30.0Hz, so is this box tuned to 30hz ? Im thinking of making new box and i really need ideas how to improve my SPL. I want to try different box, something like this: At the moment i just have vented box with round pipe. but i want to make something like in the picture, so how can i calculate box size ?

I been going back and forth about taking my rear seats out my crew cab silverado.The idea that i have if i remove the seats completely, is to build a enclosure/amp rack that rear passengers can still sit on and still be comfortable. I was thinking about covering both in some type foam and vinyl...have this been done before and would it work?

im converting 4 3" round ports to 1 square port. i made a 4x7 square this just seems smaller then 4 3" round port... please help.

I am getting ready to make a box and need to know two things. I am building a box for a nightshade 12 and I got an aeroport. The box is going to be sub up port on the side 1) Can the port be inside like old times? The only reason I am asking is all I see nowadays with aeroports is crx style with ports out of box. Will I lose db's by putting port in instead of out? 2) If so how many cubes roughly would it take up? Port will be 15.5 inches long and its a 4 inch aeroport. I am trying to see what I need to make dimensions of box if port is in instead of out. I just want the best possible setup I can get for what equipment I have.

I am ready to finish my box this weekend for my BTL but have a few questions first. When I attach the baffle with the second piece, will the port tuning be changed at all? The top will not be flush after I add the second piece. Ive been looking in the build logs and wherever I can to see if this is what everybody else does. No luck so far. I know its only one side of the port but I want to get it right and not waste wood. Hopefully you guys understand what I am trying to say. I bought like a 2x2 stick for the bracing as it was cheaper than the closet poles. Can I shave off the corners so there isnt such a big edge or should I just go get closet poles? This wont be my fin…

Does anyone know what the tuning is of the dual X15 box sundown recomends? And how many cubic ft it is?

I have read a lot on the subject, but I can't get a final answer. Like a lot of people in my country (we have small cars), I have limited space in my trunk, but still want to use a ported box. I've read that round ports can make me save space. But I don't understand how. The same rules should apply : 12-16 sq inch of port area per ch ft. What can I expect for a 3.5 cu ft box ? I would like to make a smaller box so that my amps can breathe Thanks

Hey, i currently have my box in about 1.6 cubes to low 30's, and Mike told me that 2cubes net at 34 would give me more output. I want to make sure i won't lose SQ, but i might give this a try. Will i gain much output with this change? Will i still have excellent SQ? I searched a ton on here and caraudio.com and read up on ports, square inches of port area, etc, and i used various calculators. I used the calc on maximacar.com, which is the best i have seen. The box dimensions are: 24x14.5x15 with a 4 inch by 11" port. The calculator takes into account woofer displacement and displacement of the port, and it comes out to 2.29gross, and 2.06 net. With the box being 1…

I plan on going with 3 -10's box will be 3.2cf after sub displacement will be using 2-3 6" external aero ports. Tuned to 32hz and running 2k. Subs in mind are sa's or skar 10's maybe even custom built 10's from splaudio. Box will be subs back port to the front.

Like title says guys i have these subs laying around i dont have dimensions as the car is my gfs and she would like to have some bass in there so instead of having them collect dust and her hatch looks small then might as well throw them in there so im looking for the box to be tuned to 32hz. Mainly listen to rap/hip hop and some light rock. Forgot what else to put in this been a while since i done this alright hope to hear from some knowledgeable people here

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 ?

Does anyone know where I can buy a copy of the USACI SQ disc with Hotel California? Or if someone can burn me a copy, I'd be willing to pay...of course.

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 …

What is target vent match? what does the M/S stand for. and how do i know what numbers to chose?

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…