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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Sup guys, first time poster. I have a 2003 dodge dakota regular cab. I have 2 SSD 10" that I have in 2 sealed boxes behind the seat. I am looking to take one out and put 1 ported box for only one sub in. I have the box dimensions that I want just can't figure out where to put the port or how big it needs to be. I have a HiFonics 1600 mono That I am going to be wiring to the sub at 1 Ohm. The box dimension I have came up with will give me 1.25 cubic feet @33Hz. Height = 15 inches Width = 24 inches Depth = 6 inches Please help with port size and location
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I have an 05 denali and want a 5 cu ft. box made. I went on re box calculator and my measurements I typed in made the box not square. Could someone give me a hand and give me some dimensions or a drawing???
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MY buddy drives a 2008 regular cab silverado..... He has a matrix 12' that is a fairly beefy subwoofer..... if im correct his amp is 1000 watt This weekend we plan to build a box like Fi-Ford Console/Enclosure...STEALTH - SSA Car Audio Forum Has built for trucks.... My question is.... WE plan on just doing it sealed to begin with... I think with this small of a truck it will be just fine and loud enough.... If he is no satisfied if we were to use like 1 or 2 tubes of pipe to port it would it in any way mess up the subwoofer or anything... ( could we vary the sound by length of the port in the box what size pipe would be best... ) also... if we do it either…
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hello everyone, im trying to help my friend build a box for his 2 15 inch dc xls . he has a mercury mountaineer like 2001-2002 model. he wants it ported, subs facing up and port facing back . the thing is he wants plexiglass facing the rear as well so we can see the subs. idk if thats good or bad to have the plexiglass and port on the same side? also if anyone can recommend a good site or program to help me do some designs .. he wants tuning at 35hz. or if someone can sketch up a design for me with measurements that would be great! please help a brother out lol. we're looking at 15 cubic ft of space or so for the box,
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http://www.termpro.com/asp/members2.asp?Wh...p;MemberID=9231
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So Im building my box but am confused as hell. Ive read I need 12-14sq. in. of port per ^3 but the manufacturer insists on 40sq. in. x10" long @32hz. for a 6^3 net box for my 18. Its an Atomic APX. When I spoke with them they said dont listen to anybody build this exact. WTF?! Any idea why? Its rated at 5000rms. Would the larger port make it unload at low freq. with that much power and thats why they say what they say? Shouldnt it have massive port noise?! Im so confused. Someone please straighten me out on why they want it EXACTLY as they say and yet the port area doesnt make sense?
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I don't have a disc to install windows on my mac, and I kinda want to use my TermLab. Does anyone know how to do this without using bootcamp or a visualizer?
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I'm going to be building an enclosure for a friend here in the next couple of weeks for 4 10's. I drew out the layout of the box on a big piece of paper. The original plan was to have the 4 subs upfiring with the port facing back. However, 2 of the subs are really close to the port opening in the box. I'm just wondering if the subs being as close as they are, if it will affect the way the subs perform. I have an alternate plan to face 2 of the subs upfiring toward the middle of the top baffle, and have 2 rear firing on the same baffle as the port. I have drawn a simple sketchup of what it would look like in both situations so you kind of get an idea of what I'm talking ab…
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I was thinking about to the standard square ports, but last night I thought about doing one, maybe two, larger round ports using PVC. Has anyone tried this. I was thinking something like 8" diameter ports, maybe two of them. Since it is going in a blowthrough, is it also okay to extend the ports out a little, maybe almost into the blowthrough to ensure more pressure from the port goes directly into the cabin of the truck.
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i have a 12" FI Q w/ BP option in a 2001 jeep grand cherokee. powered by a SAE 1000D @ 1ohm. right now it's in a 1.5cuft (external before displacements) enclosure that i had the (horribly stupid) local audio shop make for me. i was short on time. i'll let you know dimensions of the room i have to work with. but there is basically as much room as you could ever need for a single 12. or i want it ported tuned to anywhere close to 32hz. so yea, have fun, keep in mind this is my first box. and i don't want it to be over (i believe) 16 inches. i just want it to stay below my rear window level. thank you so much i know it's not really hard. it's just a temp box to get some prac…
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I need some tips on doing a bed cut. This guy has 3 digital design 1500 12s. I cant remember the year or model but its a dodge single cab. The diminsions i got were 15" tall, 40" wide, and around 40" deep. He has them on a kicker zx 1000.1. I just need some tips on how i should go about doing this, since i have never done one before.
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I have some final questions for my box build. I wanted to use two 8" aero ports that i was going to run through the rear deck to the box. Both ports will have to be 32 inches long which is two long. If i switch to two 6" will that be enough port area for two z 15's? I need to switch to a smaller diameter ports so they will be shorter. What are the pros/cons of doing this?
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Hey guys I was wondering if I could get some help for a box design. I messed up my first design as my box fits inside my car but I FORGOT to measure the opening of my trunk to put the box in which doesn't allow it to slide right in. I am coming to you guys for a design for the Fi 15" BTL. And the car I have is a 95 Honda Accord. Max width I will go is 35" and the height will 16.5". Was looking for maybe 4 cubes of space @ 35Hz. I would really appreciate the help and thanks in advance! -Curt
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Ok, where do you guys buy your carpet for your builds? I want some really good carpet that doesnt have a bunch of crap on the back and is easy to use. I will be carpeting parts of my box, trim work and false floor. I've always used 3M 77 glue but I saw where some folks were spraying on that contact cement stuff. There really isnt much difference in the 2 right? I was checking out a lot of Thumper's enclosure builds and that guy did really good work. His forum looks like it hasnt been active in a while. Any idea what he uses? Thanks for any help. TST
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There's a sanctioned USACI show about an hour and a half from here this weekend, thinking about entering in the "Consumer Q" class...anyone here have experiences with USACI SQ? I'm pretty sure the "Q" classes are just soundstage judging, no install, but I'm not sure. What are some things I should look out for so I don't get completely stomped? Thanks in advance.
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Ok question 1 : Im planning on building my own box but when they say have 12-16 sq in of port space what does that mean? Which part of the port do you measure to get that figure. 2 : would a T-line be a better choice for 2 BTL 12s with a 2.5cuft box? or a regular L-port?
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I have a 99 Siverado 3 door. What I want to do is take back seat out and build a box for subs so they will be behind driver seat stacked on top of each other. Take back seat and get cut so I will still have a half seat back there. No one in my area wants to deal with it. Is this a good idea? I just want my trunk to be able to carry 3 people instead of just 2. Would a ported box still be okay on one side of truck?
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Okay, so...I am going to start my build for two 15" fi bl's in the trunk of my 97 chysler sebring, I can not quite remember what specifications, but it will be about 7 to 8 cubic feet. I am not sure whether it would sound better with the port facing in side the cab or toward the opening of the trunk, the subs will be facing up, and about 30-32 hz. Any input would be appreciated Thank,
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hey guys, i recently took out my sub and amp because i needed the sitting space. my video pretty much explains what im looking ot do. any help would be appreciated!!
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I have a lot better success in making 1 single run with the port if i side fire rather then fire back. I prefer not to have to bend the port(s) is why i am asking if there is anything "off" sounding to this. My max square dimensions in cargo area is - (for this height) 42" wide x 12" high x 24.25" deep. If i were leave a 7" gap in the width to allow air to escape out of the box and shoot up towards the car, i would then have- 35" wide x 12" high x 24.25" deep. At the very back of the box on the side, i would, for example, have a 10.5" high x 4" wide port. I'm assuming i should have it as far back in the car as possible when side firing. If i choose to side fire, should i …
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Hey everyone! I'm looking to replace my current set-up with something new. My amp just died today on the way home from work and so I'm in the need of a replacement. Currently I have a set of RS65.2's up front only, after pulling out the rear deck speakers. Having only a front sound stage is new to me but, after running it a few weeks, I got used to it and really enjoy it. What I'm looking for is either a new amp to power the existing set I already have (not sure how much life is left in them) or get a new amp and a set of components to match. Budget is ~500 but I wouldn't mind going a little more if I could get a nice eq in there to really dial in the system. If you need …
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I drive an Olds Bravada (basically a blazer) and I drive it daily, but its a weekend warrior for spl. I have an AA Havoc 15, I'm building the box to the SSA Icon enclosure specs, and running it off a MB Quart Discus 1500. Which would sound better/get louder, facing the sub and port up, or sub and port back? If I face the sub up I can actually use some of my cargo area.. but that isn't a big necessity. It is a four door if that matters.
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Just trying to figure all of this out. One site says figure your tuning dependant on port length, others say by width and height of port (square inches of port area). So what's the verdict? I have 2 SSA Xcon 18's wanting them in a 6.5 cuft (each) box tuned at 31 hz. Also, what is the difference sound quality and SPL wise between having one large port or a seperate port for each sub?
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If you run the port externally, does it take up space or add to space inside the enclosure. Same idea as inverting your subs, they still take up space inside the enclosure, correct? Thanks
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Getting ready to do a little sound deadening this weekend. This is going into an 07 Altima. Do I need to remove any factory deadener that is glued to the floorboard or any other place. I'm not talking about any jute carpet or material that can be easily removed with my hands. I know that some cars have factory carpet/rubber like padding on the floorboards, does this need to get removed or can I just deaden around it? Thanks. Thanks!!! :drink40:
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