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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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!
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Vehicle : 2007 chrysler sebring Location in the vehicle: trunk Space available (Length x Width x Height): 37 wide x 32 length x 13 height i can get larger just would have to build inside trunk. Subwoofer make and model: Zcon D1 Subwoofer Size: 12 Number of Subwoofers:1 Type of Port (Kerfed, Slot, Aero, etc.): slot or aero What type of music do you like?: dubstep and decaf Is your goal SPL or Everyday Music?: most of my listening is everyday music decaf and dubstep. Tuning Freq (Hz): not sure Volume : currectly around 7 gross Questions: I have 2 zcons and am thinking of going to 1 due to rebuild thoughts. I need to give these subs more space and not sure i can do that w…
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after building the enclosure, i want to paint the box, instead of using carpet. What kind of paint would i have to use. After im done painting it i want to add a shine to the box. I want it to be a shiney black color. What are the things i will need in order for me to achieve this goal?
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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…
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Today at my 1st comp... i was able to accomplish 140dB's with my 3.2cube@32hz box. It was on the new Termlab. Yes u may say its weak, but i've got big plans for this coming season... totally redoing my whole box. I took 3rd place in Stock 301-900 in USACi comp here in Sacramento. It was alot of fun... if no one believes i hit 140, ask tyler(marleyskater420), he was there. Pretty cool guy, it was fun meetin up wit him. Anyways guys, i just wanted to let everyone know . I'm pretty stoaked.... seeing as i had 1 12(RE XXX w/ RE35.1), and the person who took 2nd had 2 12s and was 1 dB louder than me. He got 141.1 i believe. 1st place went to Steve Meade, with 2 18s with a bd1…
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had today off, ran up to the shop... and did a 147.2. voltage drop was to about 11.5 or so, with just the optima of front, popped the 300A breaker. Kinetik 2400 came in yesterday, I really need to find somewhere to fit the damn thing in...
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i switched to the Pap Moabs 2-15" and switched to a set of batterys 8v & 6v tied in sieres do a 14.97v and im not sure if it was the batterys or the subs that made the differance so im going to put the 2-15" SoundStream back in the boxx and see if that is the cause of the 2db drop or the batterys ? i need a bigg@ss battery charger...too cook the batterys to 20v and try agine !!! any input is welcome the guy grinning to the left in the background is my friend BEN we put his 2-15" Mtx 9500 subs in my old boxx & he beat be with my own boxx by 1.6db / 150.6db the boxx was built for street beat @ 35Hz his peek was 46Hz
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i did a 149.3db this weekend got 1st place my 4-15" box was still wet ! the FG Resin had not dryed and i had no time to brace the boxx i beat a guy that had 16 > 12" subs he had this he got a 148.9db & 2nd place
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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…
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I just bought a 15" fi btl dual 2 ohm off of craigslist. The box that came with it is obviously way too small and tuned to high. I was wondering if anyone could help me figure out what size of box and all that stuff I need to get what I want out of it. The current box is 19"x18x17" that's about 3 cubes and inside that enclosure is half port and the speaker. Way too small. It lacks lower end very much. Im running it off of a autotek ss1500 at 1 ohm. I want it to be audibly loud and hit as hard as possible. I have built many boxes but just want to really make sure this one comes out really well. Any suggestions would be appreciated. Thanks.
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so i still havent gotten around to doing a new box for my bro's L7. but im thinking about trying something alittle different. he basicly only wants spl so im thinking about trying a wall... i have to build the box in the trunk anyways so might aswell try something new. its a mercury sable by the way. im thinking 6 cubes net design from the manual or do a tuning around 34hz...? we are prepared to deaden the rear deck, etc. will there be more output from a wall in this car or would it be a waist of time? if we did the 6 without the wall there wont be much of a trunk left anyways... and im sure we can seal the trunk off from the rest of the car effectively.
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I have heard that mounting a 15" subwoofer (btl) in a car will be louder, or at least shake more, if it is facing up rather than back. does anyone have any experience or insight on this topic?
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Plan on running a pair of M1a's strapped @ 2 ohms for daily/bassrace, and @ 0.5 ohm for burps. Just under 3 cubic feet tuned @ 38hz 72.5 sq in. of port Does it look adequate?
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Let me start off with the basics. I have an '01 Accord and I'm looking to do at least 140 on music, but the louder the better, but I want it to sound pretty good still. So, in the works is possibly a 5200, whether it will be a 15 or 18, I don't know, thats why I'm comin to you guys. I have a 170A alt, Odyssey 1200 under the hood and 2150 in the trunk. I have an RF T30001 for my amp. I'll be able to do either a 15 or 18 ported (the 18 requires 5 cubes after all displacement). THis works great for me since I fit in an enclosure that was 5.5 cubes after displacement. Whether a 15 or 18, it will fire up due to height restrictions. I'm just wanting to know what will be the di…
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i was wondering if anyone could help me with some plans for a box, for my 15" its an alpine type-r. i no, not the greatest. but its my 1st sub. the opening on my trunk is about 41" by 18" also i have a picture, if that helps.
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Looking for some help with an enclosure for a 15" xcon... I could go sealed but I need the help of you gurus to figure out how to get it ported Currently I have the Xcon in an enclosure that is roughly: 32" w x 17" h x 15" deep ... I have a 2016 Mazda3 hatch. My max dimensions for depth is 19.5" but that's only keeping a flat wall, I'm wondering what can be done about having the enclosure sort of follow the back of seats at the present angle. Like so but less aggressive of an angle obviously...: So my hopes for the enclosure are: 1. Ported - 6" PSP port 2. Max dimesnions would be W-26" H-20" D1(top side)-19" D2(bottom side)- about 2…
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Last Night at the Texas Bass Productions show in Ft Worth Tx ( Hooters ) with a lil help from Doug ( Djman37 ) i did 152.3 on my first run.... 154.0 on the second rub 154.6db on last run and she had more to give... equipment used: Alpine 9887 Hu Ia 40.1 2- 15" SoundStream T4 subs 1 - Kenitick 2400 box 7.5cf ported with 2- 6" areaports, ruffly 7" long note 55Hz mic in passanger Kick w/ drivers door open Pics soon
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Well looks like I will end up with 17.87cu before bracing and sub displacement. I really want to end up with 17cu total after. This is for 2 18in FI Q's on 3k watts. Box dimensions will be Outside 35h x 54w x 27d.... All sides double 3/4 MDF except front baffle will be triple. (may use some Birch for weight reduction) Usable inside demensions are 32h x 41.5w x 23.25d = 17.87cu Port is 8 x 32 = 256in total Sub displacement = .24... but I will be triple baffled so what maybe .22 or less?? Total of six 2in hardwood dowels for bracing =.35 2in wide 45's in corners =.10 So this leaves me with 17cuft tuned at 30hz after all is said and done. I may glass the inside as well? what…
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hey guys, this is probably a noob question, but i have an 18" fi q in my car with the bp option. i have it hooked up to a hifonics 1610 1600watts rms, i am running about 1200 (i set it with a dmm). its in a 6.3 cubic foot box after displacement, and its tuned to 31 hz. my question is, why is it that when my doors are open it sounds alot louder than with the door shut. opening the windows helps when im driving, but its getting cold and i wasnt sure if there was anything i could do to make it loud with the doors and windows shut. any help would b great. thanx.
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Okay so ive been doing loads of research on parts-express and so forth on finding a sub for a 1974 MGB. I really only want something super small and getting something for better sound quality than just two 6.5's in the doors. Behind the seats is a bit of space but want to keep mostly the stock look. However, there is a compartment where a second battery used to sit that is no longer there and I think I could find a small box in there. I measured the dimensions and can get about .15-.18 cuft gross airspace without making anything look out of the ordinary. I havent found much for the 8 inch woofers or subs that will suffice in that airspace, however there are various o…
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Well, a buddy of mine has one of these, it's a single cab, long bed. He just got a new, sweet ass small block 350 in it, sounds mean. But his audio, just makes me want to cry.. Stock 28 year OLD 5x7's in the rear, if what he told me is right, and it has no front speakers, doors or top of dash. Well, I told him I could fabricate him some 6.5's into his doors, there's plenty of space, and I was just wondering how would I do the wiring since it doesn't have any power options in the doors what so ever. So what I'm asking, do I drill a hole into the side of the door near the inside of truck and vise versa and find some rubber grommets or what? Thanks for helping!
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i just bought a 1990 crx and i have 2 audiopipe txx's they are crap but work for now i just need some help with the box should i have port back subs firing up ? subs firing back and port back? or any ideas? ive gutted the interior in the back i want to fiberglass it all
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Please help, need enclosure ideas looking to break 150 while still being able to listen to music. I'm running a pioneer premier 3000.1 temporarily but will be changing over to hifonics cyclops. Any ideas would be helpful as i was debating a wall but am not sure what would be best. Have tried so many boxes that i'm tird of killing trees...PLEASE HELP!!! Thanks.
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I have a Soundstream Reference 500sx rated at 500 watts in 1ohm & 2ohm, is there a difference in sound quality in the different load and what about subs, does it make a difference in sound quality if you have a dual 1ohm or a dual 4ohm sub wired at 2ohm load are there any differences in sound quality.
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This will be my first show in over 2 years by this time! Last event I was in was the 2002 SLAP Finals where I was 4th. My system isn't designed for dB Drag so I will be outclassed a bit, but it will be fun to get into the lanes again. Here is the link to the show if anyone cares:) http://www.termpro.com/asp/members2.asp?Who=13&MemberID=6498
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