SPL & SQ / Fabrication

What is considered the windowline in a competition vehicle? My doors and my trunk windows have a different height. Also, do they have no wall classes with a height limit vs the window rule?

I posted this on another forum and I would like to hear the thoughts from the gurus on here as well I have been ready through pages and pages of threads on adding rear fill to help maximize the front stage. After understanding how rear fill is used for this application many folks (including myself) have been thinking how to acquire the necessary L-R. On a side not L-R seems to be the most common method although there appears to be other methods for generating a rear fill signal which require a fancy processor. The MiniDSP 2x4 has a plug-in Rear/Center Channel. This plug-in gives you the generated L-R signal, xover, 31 band eq, and up to 27ms of delay. You can al…

Help me out. I can't afford a ton of batteries so I can only go into a class with minimal bat requirement. :boxin:

I'm planning a box for a trunk setup w/ folding rear seat. The subwoofer will be facing the rear and port at the rear or side, and enclosure moved as close to the cabin. What is the rule on height and width clearance of the enclosure in relation to the rear deck and side panels? Is there supposed to be space in between? Can either be flush?

What are the benefits of using aeroports rather than a standard port? Are there any negatives? Just trying to learn a bit more before I waste my time building a new box. Thanks for the help guys

Going to be making my own port flares.. My dad works at a machine shop and has access to a lathe with will make things easier. He's gonna make me a mold so I can just fibreglass over it to make my flares. Now, I was hoping I could get some help with dimensions of the flare, it's going to be a 10" port, and I need to know what diameter to flare out to, and how deep to make the flare. Iv heard add 4" to the diameter but that could be total BS, but iv got no clue as far as how deep the flare should be.

Hi I'm making my box for 2 12" Fi SSDs and I can get my dimensions from the RE box calculator but how could I calculate a double baffle into it? I have been thinkin about it and I can not think of how I can calculate it and keep it at 4 cubes.

I have an 08 cheny crew cab I would like to build an enclosure to go under the rear seat that will hold one BL 12"ran off of one T1000 fosgate amp this will be a daily application I will have to raise the seat to make it fit I will be raising the seat 4" the area I will have to work with would be best described as a wedge style box 55"w , 16"H , 8 "--9" D1, and 11" D2 Can anybody help me with die mentions for an enclosure for this application and ideas were the port should go and how large to make it I would lik to make this an up fire with the port coming out the front

I currently have 2 SA10's in 2.5 cu ft net tuned to 32hz. They are running at 1 ohm off an SAZ-1500D. I'm pretty happy with them, but the box is the wrong shape to fit where I want it. This is going in an 03 Lincoln town car on the hump behind the seat on top of the gas tank. I have 41" of width, 18" of depth, and 10.5" of height. So I should be able to get 2.5 cu ft net, but just barely. One reason I'm considering the skar subs is that I get a free box. I can get 4-8's in a custom ported box shipped to me for $500. Or 2-10's for $380. I've been thinking about 8's since the sa8 came out. And the box would look nicer for 8's since I could do a flush mount baffle. I don't h…

Tought to explain, but here it goes. I plan on using an 18" sub in my car. Due to size restraints it will be firing up into the lid of the trunk. Now, has anyone tried to make a baffle to go on top of the sub? The baffle would be touching the box at the back of the trunk and be touching the very top of the trunk at the front of the trunk. The baffle would span the entire length of the trunk. The sub would then fire into the baffle and create compression loading like in a hatchback. Damn, that is tough to understand. If anyone knows what I am talking about and has a better explanation than please feel free to elaborate. I just drew it up quick. I am just wondering if the …

I have a weird question; I plan on attempting to build some Kick panels. I have some Fiberglass and Kevlar material that might work. But I want your opinion. All this material is about .015 -.035 thick per layer, yeah it would take a lot of layers. This is a Spun-lace polyester material, Its 4

I currently have my 15 L7 mounted in a 1.5ft.^3 sealed enclosure powered by a RF Power 1001db 1000watts @ 2ohm in my brothers semi truck it's a international 9400i with a bunk bed sleeper, it has mb quarts 6.5 components up front and 5.25 coaxial in the rear powered by a zapco ag360 with a clarion dxz 575 head unit. My goal is to get real loud and maybe enter competition in the future and upgrading to two L7's or even 2 fi 15 bl's and space is not problem. i listen ti wide range of music but mostly reggae, hip-hop, r&b, rap, pop, and some classics, its my first time building a ported box but i have experience in building sealed, so it would helpful if you guys could h…

So I only have bought pre fabbed boxes... Yes I know I am a lame person. The boxes are probably not to spec. And the boxes I usually get are cheap and are usually sealed. So I have been doing a lot of research and I think that the next box I want to BUILD is going to be a ported box. I know this scares me because of how hard it is going to be but I think I can handle it... If not it is a learning process. I am getting a Icon 12 dual 2ohm sub. My uncle who lives here does flooring and has tools/experience with wood working and stuff. Also what he does have experience with is fiberglassing and also doing carbon fiber in the hull inside his jet ski to make it stronger. I …

New to car audio here. I recently purchased a SoundQubed HDS312 and SoundQubed Q1-1200.2 amp and plan on building my own box. It will be wired to 1ohm and installed in a 2006 Trailblazer. My question has to do with port firing direction, this is a work truck constantly filled with tools and I would like the sub to be facing up so it doesn't get damaged, and have the port facing the rear or both facing up. I've created two boxes both 2.49 cubic feet at 33.48hz: Any input would be greatly appreciated.

Hello, I have 3x SSA DCON's in a box that I handmade from a design from a member here. I recently bought a new SUV and the box will not fit. The box is too wide by 1 inch. The inside area of the port now is 14 3/8" X 7 1/2" ....if I cut 1 inch off of the port then the new port would be 14 3/8" X 6 1/2". Would this change the sound of the subs a lot or would it be ok to do this ? Thanks in advance for any help.

not sure if this is the right spot but anyways any of you guys try to fit 1 or 2 of these under the seat of a pick up before? the truck actually is a 2006 F 150 super cab.....dont get it confused with a super crew. Im gonna try and figure out the box today and i just thought of using these i was going to run two 8's ported off 1 SAZ 1500D. im also considering two RE 8's too but i figured the AA would handle the power better than the RE's. Anways the other question i have is how much room is good to have between the cone and the floor of the truck. cuz i know i should beable to fit the RE's in there but the AA's are going to be tight as they are a bit taller in depth t…

Now I gott figure out the volune but my wierd ass box isnt liek any of the calulators boxes

Hi guys. I will have some time to hang out next week and wanted to use up all my extra MDF. I wanted to attempt to make a 4th order bandpass to put a couple PWX 10's in there and hook it up to my xbox. I know they are not subwoofers but they are my test speakers. If this box turns out good I will refine my design for a couple of real subs. This is what I have come up with. Each side chamber is 1 ft^3 sealed and the center chamber is 2 ft^3 tuned at 33hz. I have no clue how a 4th order works but this is what I have come up with. If you could explain to me how a 4th order works that might help me design this and also let me know if there is anything I can change to make my …

How much port area you think would be best for 2 18" zcons. . Will be in around 16 cubes in a b pillar flat wall on about 5-6k rms

I'm just curious what are the advantages and disadvantages between TL enclosures, 4th order bandpass, and 6th order bandpass enclosures. These are all very new to me!

I'm just trying to design a new box for a 93 civic hatch. Just wondering if anybody has any suggestions for me. There will be 3/4'' all-thread rod for bracing. The box is for 4 12'' pioneer premier ts-w3002spl. It will be in a wall config. subs on driver side port on passenger. all thoughts are welcome. This is what i got so far.. http://memimage.cardomain.com/ride_images/3/3224/1061/33058030018_large.jpg

Hey guys I made this box for 2 audioque 12 hdc3 subs and i want to know if this is an optimal design and if you guys have better ideas give me dimensions i want 36-37 hz thanks guys heres my design the slot port is going to be the bottom so the height is actually the width

So I am thinking of adding another Xcon 15" (1ohm) and not sure if I should stay ported or go sealed...I have a Hifonics BRX2000.1D which currently runs my ported 15" (1ohm dvc) w/ 1400rms @ 2ohm. I don't intend to upgrade the amp as right now my stock alternator seems fine, and have no plans to upgrade alternator anytime soon...sooo... Running two subs will pretty much leave me with 1k rms for each sub...and the idea of staying ported or going sealed is keeping me awake at night! Not to mention enclosure size and design. In the back of my Santa Fe has a storage compartment which houses my amps, but I get the feeling with it being so hollow it could be echoing my ba…

Hello Guys, What do you think will work best for me and will sound louder, 12" in a 2.5 cu.ft. or 15" in 3 cu.ft. both will be tuned 37hz? Brand is IA Warden. Recommended enclosure for 12" - 2-3 cu. ft. Recommended enclosure for 15" - 3-5 cu. ft. Thanks in advance!

I came up with this design for my subs, but I am having trouble figuring out what size the enclosure will be since it's an odd shape. Just wondering how much space each sub will have with these dimensions.