SPL & SQ / Fabrication
Calculations, Concepts, Designs, Theories. All General SPL Or SQ Questions Can Be Discussed Here.
2,714 topics in this forum
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Would it be possible to make a box out of the clear material and have it sound just as good as MDF if not better? I think Id like to go that route, why I dont know but a clear box would look cool to me.
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Ok i need some help.....i am doing a business and marketing plan(IMC) for a car audio company(mostly enclosures) and when i went to a nameless place(audio store here) i asked the guy what the difference is between ported and sealed box He said nothing....now i know there is a difference i just not sure the reasons...i need to be able to explain it in my presentation in november.. if you use acrynoms or intials(spl or rms) please tell me what they mean so i can use them. i am expected to know all about whatever i present.
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- 17 replies
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I have a honda accord 99 with a trunk vent (8"x3" slot) behind the paneling on the driver side. I notice the other day that there was a lot of air leaking through there when the bass note hits. Would sealing this up help with spl and is this bad for the car? My box is in the trunk sub and port facing back. Just wanted to know if anyone had this problem and what did you do to it?
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- 13 replies
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I've recently wanted to start making a horn style box, I've build one on accident before, but didnt know it was a horn box. Now im just needing some advice or basic tips on building and tuning of them.
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- 12 replies
- 1.7k views
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i am trying my hand at some horn's for the mids from my re6.5 comp set, the tweeters blew so i got new comps coming, and desided to put these in the living room. so how does this look? anything you see wrong or horn tips would be greatly appreciated
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- 2 replies
- 806 views
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just starting to figure these enclosures out a little. any one got any info.
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- 668 views
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Like the topic says. Does anyone know how accurate the numbers are? Port Length Calculator Thanks
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- 11 replies
- 808 views
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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.
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- 8 replies
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I am new and am designing a ported box, it is 4.1 cubed inside for 1 15 and i want to tune low. how big should the port be so the air speed is not too fast?
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- 21 replies
- 2k views
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Ok this box will be for a customer of mine and i cannot find a damb thing about these woofers.. personally i dont like PT products but if you got money imma build it.. lol so im thinging 4.5cubes 63sqin of port and tunned to like 36hrz sound good smaller bigger let me know
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- 13 replies
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Hey all.Im going to be getting a different enclosure and im wondering how big it needs/should be.I have 4 10" DC lvl 3 subs with lvl 4 upgrades.Ive been doing some thinking and I think i can move my batteries and have room for a bigger enclosure.The max deminsions I could use would be 32W x 19H x 40D.My goal is to hit 150db and I just cant do that with my current enclosure.I know the deminsion I gave are probaly to big for the 4 10's so thats why I was wondering how big I should make it.I would like the entire enclosure to be double baffled and I would like to use aero ports.I have always liked aero ports but I have never had a enclosure with them.I would like the enclosu…
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Hey, well over the past couple days ive been smoothing out the wall that ive had for about 3-4 months. i couldnt do anything before because it was -15 degree C all the time. the last few days have been +2 to 4 degrees, warm enough for a tshirt. but today its about -2. If i kept goin today, itd be done and painted, but is it too cold for bondo to cure? or will it just take longer to cure? thanks
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- 16 replies
- 1.6k views
- 1 follower
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I've attached a picture of the panel I need to make a box to fit in. I would love to be able to mold the box outside of the car, but I'm concerned with the trunk panel folding over and not keeping its proper shape. What are my options?
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- 8 replies
- 1.1k views
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Im in the process of a biulding a new setup which will consist of a 12in FI BL fully loaded with a Hifonics Brutus BRZ1700.1d. My last setup was a 12in FI Q with a Hifonics HFI1000.1d and i had a box i built myself that was 2.5 ft cubes tuned to 33hz with a 2.5 in slot port width. I had it in a chevy blazer and i could hear the air coming out of the box? How do i limit that noise so it sounds clearer? Vehicle: 2006 Nissan Altima Location:Trunk Space Available:30x18x15 Sub: 12in FI BL Music:Rap and Dubstep Goal: I want it to have the best SQ while doing well with SPL
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- 7 replies
- 982 views
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this box im making for my ta is a PITA. having to make all sorts of corners and angles to utilize every inch of space in my well. coming along good so far, i've got the bottom half done, and im coming to where it angles and comes to the top of the box. how do i go about screwing in the angle? do i just countersink it further in on the outside of the box, so it doesnt poke out under the carpet, and put the screw in at the same angle as the wood?
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- 2 replies
- 769 views
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when i make enclosures all can make is sealed enclosures. but id like to start and learn how to make a ported enclosure. i kno theres alot that goes into making these awsome boxes. i want to know how do u kno where walls should go and how big ports should be. and basic stuff like that. this is my first ported box. i got a 10" jl w0 in a sealed box that im not using and wanna make a ported box for that. sounds great but i wanna learn how to make ported enclosures. so how do u do it without guessing? thanks.
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- 5 replies
- 778 views
- 1 follower
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I know you have to put slits in the wood, but how do you know how deep and so on, is there some type of formula? I know i read it on here some where, but i just cant find it.... Thanks,
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- 16 replies
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ive never done it before is it hard ive seen pics of people doing it but i dont really know what to do i think i need a video or tutorial i couldnt really find a good one most were for boxes i dont want to make a box and i need to know all what to buy the speakers are already mounted in my door i just want to cover up the ugly hole around it so just the speakers show
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- 21 replies
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just wondering how to find out what frequency to tune a box to? do you base it off fs?
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- 15 replies
- 1.5k views
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I remember talking to shizz and a few other box builders on here and they all said "if the box is built well enough, no bracing is needed". Well is this true? I am working on a new box for my 15" - 38"w, 18"d, 16"h. I dont think I need bracing for a single 15" in that box, but I could be wrong (its a little oer 4.5 cuFt with port tuned to 32hz). I have been looking at other posts for people building their box and its either hit or miss for who does what with bracing. The one I just finished looking at is using bracing for a smaller box so once again, I am not sure. Forgot to add in - I will be putting a DC Level 5 15" in the box being powered by a 3500D
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- 20 replies
- 2.2k views
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What do you guys think of the design? Its for a DC lvl 4 12'' sub How would I factor in a kerfed port to the design??? If the kerf is secured as an external portion of the port, will it affect tuning or require a change in design anywhere? Specs come to: -2 cubic feet before subs displacement -32.5hz tuning -36.25 sq inches of port area
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- 4 replies
- 1.3k views
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So after taking a bed apart a few days ago i discovered the mass use of MDF used in the bed's structure. Now if i wanna build a box for my 18" btl, people always say use 1/2" MDF. How important is that 1/2" ? Why does it need to be that thick? For structural/support reasons? the MDF from the bed is 3/8" and i'm going to go buy the 1/2" just because everyone on here says to do it and i trust them, i was just curious. I have like...50 square feet of the stuff.
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- 10 replies
- 963 views
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If I had (4) 6 1/2's and I went to (3) 8's, how much louder would I be?
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- 7 replies
- 1.8k views
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PPL, I'm in the process of building an all out SPL car. (SM 3-4) Right now, I have 2 AutoTek MM4000.1's, which will be connected to 2 ATOMIC APX18D2's. (wired@ 1 ohm per sub) Being a Kinetik dealer here in Japan, I can get the 2400 Monsters at a good price.. I used the calculator on the site and it said I needed 3 of these monsters! My goal is to get full power out of the amps(burps only!) How many batteries would you suggest? and before anyone suggest other batteries, I've already looked at: Odyssey 2150 NSB90 via Northstar and Optima g31 Yellow tops all comments are but experence is wanted holla when ya can TIA Gavin (MERRY CHRISTMAS AND a early Happy NEW YEAR …
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- 9 replies
- 1.3k views
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me and my friend made a ported box tuned to 28 hz ... we followed the volume according to the specifications of the subwoofers (2 12" pioneer premier ts-w3002d4) ... we made 2 separate 1.4 cu ft boxes ... the output is not what we thought it would be ... we want it to be louder and maintain sound quality ... what size cu ft box should we make to get more output? .... should we combine them into a single box? ... if so how do you do the portwork insde?
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- 5 replies
- 1.4k views
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