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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ok this is what im working with, i have a 94 corolla 4dr the the subs will be in the trunk faceing the front. the box will be sealed off from the cab. im going to be useing 2-15pbx subs and 2-optidrive2000d (4000w @ 1ohm). the box will be 5cuft @35-38hz w/100sqin port area. ive hit high 130s db with just 1-8" sub w/around 250w on my meter (termlab) so i think i can do it ... so if anybody knows of someone who has hit 150 or over with a trunk setup have them holla at me, or you can just tell me what they did.... thanks jamie
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I am getting 2 Fi SSD 15's and I am wanting to get some pretty deep bass out of them. So what kind of box should I get to get the most out of them? If ported, slot or round? tuned to how many hz? Thanks in advance ~MadroX
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sup planning on entering in my first spl comp. in Roanoke Va. Mar.22. Was reading the rules and got somewhat stuck on the part about the fuse requirements. I'm using a 200amp circuit breaker, do i need to install a fuse in its place to enter. Will be running a saz-1500d on 2 12" lvl4 d1, also would be considered AS1 or AS2. Hope to meet some of you there. Styllikeitloud
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I was wondering if anyone new of any good enclosure design programs, the only one i know of is term pro. I was just wondering if there were any out there that were better. I am trying to do some experement ing with some bandpass enclosures.
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This is a goal to reach 150db tuned for a daily driver. I've been doin some measurements and have came up with a box design that has me smiling and this will be the last box i will build for the car... unless i downgrade later. This is my last attempt to try and reach 150db with a daily tuned setup and i'm crossin my fingers because this is only with 2 15s and 4,400w of power. Here is the wild design- Remove back seats, where back seat was, install a wall there sealed off from the hatch area. Now, i have 33" of depth from this wall to the back of the front seats. The box design would consist of 2 15s ported facing toward the wall. There is an 8" gap from the front baffle …
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So I drive a f150 ext cab with a kicker cvx 15" with a 6 cube box tuned at 32hz. Right now it is powered by this POS sony 1200 2 channel. The first time I metered I did a 139.5 door open. I metered yesterday and the best I could do is a 137.2 The testing was done on a term lab. Now the things that changed: 4 ft shorter power wire than before - better bigger ground - better new rcas - better new bigger remote - I know this wont change anything just thought I'll throw it out there The only difference than before would be the temperature. It is roughly 35-45 degrees hotter outside now. Can the ambient temperature effect db?? Also my buddy metered too and he had a decrea…
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would a port facing the side work in a 2001 eclipse hatchback.......its about a foot away from the panel if I were to face the port to the back ....the port will only be about an inch away from the back panel.... and I don't think it will have any air flow. if I face the port to the side .....will it practically be the same as facing it to the back?
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I know this question has been posted before all over, but many of the discussions just turn into b***hfests, and no straight good answer is given. Would stuffing (polyfill etc...), or lining (vibration damper, mlv, etc...) a properly sized and well built box make any difference on the sound quality/characteristics of the subwoofer it contains? I'm looking for one good answer please, not a million random opinions. My head is just in a daze after looking at how many odd forum posts that don't answer the question I'm posing. Thanks to anyone who has good knowledge on this topic!
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i'm getting ready to wall of my car @ the b-pillar, w/ a series tuned 6th order bandpass for my 2 15's i'm hoping to be in the 150's w/ this setup. here is the plan for my wall, and a pic of the old setup.....(except i'm running soundstream dbx 15's, not the RL-p's) what do you think???
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Ok I have a 99 camry and want to cut wall behind fold down seats to seal off from trunk my question is will this hurt structure of car I only need to cut 3-4 inches on each side and 1-2 inches on topp to get box flush
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I have a soundstream tarantula tr880/2 amp(880rms) and now a soundstream splx 12" 750rms. I have 4 ga amp wires and 10 ga speaker wire, all on a alpine headunit. trunk is dynamated. I just got this sub off ebay after selling my jbl 15wgti. I didnt have much space and I figured I could get a 12" to pound as hard as a 15" I've saw guys at comps do it. But with this soundstream sub I'm not impressed. It came with a cheap particle board 2.3 ft. air space ported box, I plan on getting a nice box. the 15" hit a lot harder then the 12 in just as crappy a box. If anyone out there can give me some pointers on how to get this 12 to sound like a 15 please let me know. let me know if…
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I'm looking into building an enclosure that measures 34W (left to right) x 18.5D (back to front) x 14.5 in height. The speaker is going to sit on top, port firing back. This is an L port design. The port will be 3 inches wide. My question is, if I want to tune at 33Hz how long would the other part of the port have to be (the one that runs across the back of the box)? I used RE's calculator for my last box a few years ago and it couldn't catch the lows for nothing, so I know something is not accurate about that calculator. If someone could help me with this, I'd appreciate it.
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I am going, and I know team gates a a bunch of other big guns will be there, anyone else from here? I am rolling with Ray and the Caton Customs crew, but I am not going to show, I dont have time between then and now to prep my car, nor are my pods built yet
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I've heard of people blocking off the rear cabin vents ( behind the vent caps) to gain loudness in the cabin anyone here dine it or does anyone know if it works because with my system turned up if you walk to the back you can here a farting noise coming out and also you can feel the air coming out
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I have a Fibl 15" firing upwards with a port on the side of my box. I was wondering what would make it louder in the cabin of my car? Port facing me or the rear? Don't know if this will help any but I have a 2010 malibu
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Hey guys I have a question I bought 4 3 inch aeros to be tuned to 31 hz they are going to be 12.3 inches each will this sound good I'm using a saz 3000d witha cascade designs omega 18 itshould pound right thank to all who help
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I have really thinking about trying to run surround sound into my car but don't want to spend very much I want to keep my active 3way system I should be wiring this week, cross-overed in my deck I like my alpine 7998. What options do I have no cheap junk like pyle please
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Hey guys i came up with a design i just want to know if i did this right let me know its 4.4 cubes not counting port area and its 40 hz can somebody double check this and confirm what i did was right thanks
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Can anyone give me a fairly straight forward design for a bandpass box for two 5 1/4" woofers? I like the one i have, but it is uber ghetto (Current Box) I would like to have it peak around 28-30hz for chopped and screwed music, but maintain some punchiness on higher notes. Box size isnt really an issue, the one i have currently is around 9in tall, 4ft long, and 3ft wide. I like the style of mine, the way it is laid out, chamber, port etc so anything similar would be perfect (i might use a plexi top; If i do go with the plexi, i'm spraying the insides flat black). I will build it myself, out of 3/4" mdf and some bracing. Only requirements are is that it must be at most 12…
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I was wondering if anyone would be able to make a sketchup for this box. and please correct me if my tuning is off. box is 4.33384 after sub displacement. W. 30 H. 20.5 D. 16 wood thickness .75 and the port being 32.5in long tuned to 32 hz with a kerfed radius of 3.
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currently running a sundown saz1500 powering a fully loaded 12in fi bl in a 2.5 cu ft box tuned to 34 hz. I was recently at a local audio shop and had the main guy set my gains properly so i did no have any clipping. I was not very impressed with the outcome. As i come to find i had been running with clipping since day one and my system is now quieter. He told me to tune my box to 40-42hz and it would be louder. My question is how much louder? and will i still be able to play most rap music? What would be the lowest tone i could safely play?
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Gettin ready to start on a new build. Will consist of: 15" Sundown Nightshade D2 Alphasonik 1000HCA (Possibly saz1500) All 1/0 Exide Orbital Deep Cycle Damplifier Pro will be installed on all doors and on hatch and on the floor from the back seats back. I have more for rest of truck but probably wont have time to get it all on at first. I want to be able to put up some good numbers on the TL so what kind of design you got for me? Should I do a slot port or aero? About what size box and tuned to what? Thanks 3 cu ft tuned to 36hz with 3 4" flares?
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Hey guys I have a couple questions. I did a build on 2- SA-12" V.2 Nightshade and I had a custom box built that is 3.0 cf box w/ a port face that is 40x1.2" and is 23" long (specs I got from SA). The subs are firing up and the port is firing back at the bottom of the box. This roughly give me 48 inches of port tuned at 36 hrz, I heard from SA tech that I needed 15 inches of port for each SQ FT. It sounds great, the only problem is it doesn't sound as loud as my ProBox super bass box did. Any suggestions? I talked with SA tech again and they said raise the tuning frequency by cutting off a little off of the port. I checked with ProBox and the Super Bass Boxes are tuned at …
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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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