SPL & SQ / Fabrication

i just started building my first mdf box. im using 2 1/2 inch drywall screws and the proper drill bit. everytime i try to put them in, i split the wood. are these screws to long? not drilling fast enough or what? done it 4 times so far, and i dont want to keep wasting wood.

After i told him my system he txted me two days later telling me he got a new system he said he got four dual 2 ohm 12s running off a 1400 watt rms amp and he says the box he has is 1.4 cubic feet per sub sealed but he said its tuned to 40 hertz. You cant tune a sealed box cam you? and anothr reason i dont believe him is he drives a pt cruiser and when i asked he said he still has his back seat in. Could u even fit an almost 6 cube box in that timy a** storage compartment? Thanks for all replies

hello ssa and people with grand prixs lol. i wanna but a 15 fi bl in the trunk of my 97 gp. but idk how i can make a big enough box but still fit in in through the trunk. people with gbs can i get some box dimentions please that would be great. thanks for veiwing.

Alright, so iv been looking at the inside of my car lately and it makes me a bit sad. My car is black on the outside, with a 2 tone grey interior and wood trim pieces. What i was thinking is to get a bit creative and change up the looks of my interior. I wont be upholstering or anything, i was just thinking about taking off some of the pieces and painting them black... Not sure yet... Give me your opinion if youve ever done something like this. Heres a few pictures so you can see what im working with.

aight. i have 3 12" california profiles. i have 3 custom 1/2 mdf wood boxes. there in a ranger single cab. i have 2 behind the seats and one where the center floor console/ cup holders were. i dont have the exact specs but there .40-.50 cu. ft. of airspace for each. the subs need 1.25 cu. ft. of airspace, but there just temporary till i get sum new ones. well my question is..they really dont have any excursion at all. they really bump but dont really move. i figured its cuz of the super small boxes. and probally cuz i didn't put any poly fill in em.or maybe cuz there low rated subs, they have like 50 rms and 350 watts peak but if i get sum 12" kicker cvr's or even some sh…

O just for giggles i built a lil oh 3cu tuned to 34hz box. . threw it in teh car hooked it up and it gets loud about as loud as my sealed 2 sub box.. But the thing i hate hate hate is that, it only does this at the higher hz's. Like low low bass plays but it doesn't rattle anything ect ect... I think my 18's had me spoiled though and i could just be being biased, lol So to compensate for the lows what would be a better tuning for my needs..28? or should i just go back to 18's

i did a 149.0db Sunday with 1 sub ported to 36Hz going to build an SPL box for it now and get over the 150.0db mark with a singel sub Jacob i am out of Flyers need more as everyone is wanting info SounsStream 15"XxX

Yeah i know i haven't posted in a long ass time.. However.. So i finally got the Navi goin a while ago and sold the town car. I kept my same box i had and just threw it in after i reconed my MT's. So needless to say 10x louder in an suv than in a car. But after a week or so off playing music i start to notice rattles and squeaks. So a few days later the bass just isn't hitting. So I go back to the box and see this... Thinkin to myself dam, i might need to start fiber-glassing the inside of my boxes lol. Funny thing is i can listen to my music all day up loud but passengers seem to have sensitive ears..on the broken box at that. lol 2 18" mt's 5k watts btw 150's im hopin …

Hey fellas quick question, I was talking to co-worker and he was telling me about Obcon subwoofer enclosures. So I looked them up. They are using a concept called labyrinth porting. I ordered a Sundown SA-12D2 a few days ago and the recommended eclosure size is 1.75^3 tuned to 30 hz. The box I'm looking at is 1.8^3 tuned to 38 hz. Has any used these enclosures or heard some one that was using them. If so just wondering what your opinions or impressions of them are. Your opinions are valuable to me because of everyone's knowledge on this forum. Thanks ahead of time for any opinions. Also if I decide to go sealed would it be ok to run a slighly larger than recommended seale…

Why is it that some companies suggest a larger box for Fart boxes then others recommend smaller boxes for Fart boxes? What's the difference? Why would a large box work for one sub and not another and vice versa?

alright calm down.. i know the SQ guys are all worked up with sand in thair clams right about now.... i want better sound in my car.. i have some highs and mids but not enough.. i wanna get a cleaner sound. i have 2 bl 15's on a saz 3000d. and then i have 2 sets of 5x7 alpine typr R comps in the doors and in the rear deck. it sounds good at mid to low volume, but when i turn it up to higher volumes the tweeters are steal sounding and the word are ran over a bit by the subs.. its not THAT bad.. if you watch some of my vids you can see that some songs are better then others ...... some sound good.. and then other songs are just blah... i know 5x7s are junk..…

I have an old 2 channel amp that i wAnt to put in my truck. Should it go on tye front door 6.5s or on the back door 6.5s? My sub is in the back seat also... But what would sound better? Iv been told the back would sound better... But i feel the front would. What do you guys think? They are the kicker ds series 6.5s and its like a 40rms amp or so per channel... Coment please!

Ive got (2) Kicker CVR Aluminized 12"s in a sealed box at the moment. I'm looking to build a ported box for them. Very little space in my trunk though, after replacing the POS factory Bose 6x9s. They hang down a little lower than expected, and also to note my torsion bar broke off the spot weld. I need some box dimensions along with ports and what not. I have a width=35" height=15". Can anyone help me please? It will be in a 2001 Acura 3.2CL Type-S and Im going for http://carphotos.cardomain.com/ride_images/1/2477/1341/6190670138_large.jpg this kind of look.

Need help with box demensions for a custom built subwoofer The RE has tc aluminum basket 4" 8 layer flatwound aluminum voice coil 3 10" tc spider pack with 1" spacer 8 gauge ofc direct leads dual 2 ohms voice coils everything is brand new just the moter is used also has a two tone carbon fiber dust cap can take 4000 watts rms Thanks going in a astro van

i have no experience in enclosure construction at all and have been tearing through forums for some helpful advise in enclosure designs. I am pretty confused at this point about some things and was wondering if anyone could clear it up? I am under the impression that if a certain speaker is in a smaller enclosure that it will handle more power and a larger enclosure will be more efficient (less box rise). so if that is true, will they be equal in spl if they receive the same amount of power (after rise) rather its in a "smaller" or "larger" enclosure? i have also heard of people covering ports to play with their tuning, is this just a solid cover reducing the height/width…

I am planning a fairly large system as my next project. I'm curious to know what you guys think of oddly shaped enclosures. I'm not talking about the plain jane square boxes, I'm talking about enclosures constructed out of nearly 100% composite materials. You know the ones made to fit oddly shaped areas such as the sides of trunks or in spare tire wells. I am planning on 2 Fi.BTL15's and in order to get them in and still have room for amps I am going to need to use fibreglass for a very large portion of the box to maximize the enclosure size as well as the usable trunk space for amps and such. I am under the impression that shape doesnt matter nearly as much as the size…

So I built a 3 cube box (net) tuned to 31 hz for a new, Fi SSD15 with standard options. port area is 34 in^2 sub up, port back. slot port, 11.5h x 3w x 24d box is 13h x 32w x 20d. 11 sq inches of port per cubic foot of the internal enclosure volume. I'm getting great low end, but the output begins to drop sharply at 55hz, being hardly noticeable at 65hz. I did a tone sweep and the output drops off sharply between 55-65hz, picks back up a little bit in the 70's until it begins to roll off around 90hz where i have my crossover set. My old pair of kicker cvr 12's hit this range wonderfully tuned at 40hz in the same car. I think my box and port are the wrong sizes. ive watche…

After watching YouTube and attending a few myself. It appears competitions make the hobby kind of sour. Online were all friends, then comp day rolls around and it's like the wild wild west. I've seen a lot of friends and drama start and end from these "comps" Almost to the point I don't even like attending them. I go to shows to talk interact and enjoy the hobby. I just feel like comps get way too serious. FTLOB!!!!

Wanting to do my next box with birch, what exactly am I going to need to look for when buying it. Thanks

I currently have a 12" Xcon d2 with a bc2000 wired in parellel in a 2 cu. ft. net box tuned to 32 hz. with 38.5" of port area and love the sound. It is in a 98 mustang with stock alt, stock replacement battery(under hood), 0 gauge all the way including big 3, and marine deep cycle in trunk. My 2 concerns are running amp at .5 ohm until i can get a second bc2000( not sure how long it will be until i get it) linked at a 2 ohm load. Before i link the two i will upgrade the alt. The second concern is space as i only have 31W x 12.5H x 29D max. I really want to keep ported but if it isn't optimal then it might have to be sealed. So I guess I have 2 questions. Can anyone help m…

Was going to build a small sealed box for my brothers truck. Just wondering if any tuning can be put in a sealed box. Or perhaps it goes off the speakers "Fs" ...hell if I know haha

I'm just about ready to buy a H-701. I have a pair of sundown sax-100.2's running dual mono to my Diamond d-971 components(~400 rms per side). I wonder if I should stay with the passive xover or go active... I have the capability to easily switch between the 2 when I get the processor. Also, I just got off the phone with Diamond, found out that the tweet is crossed at 850 hz, but he said that the woofer has no upper cutoff freq. If I do go active, Where should I set the freqs, I want to try and keep the tweet as low as possible to bring my stage up. Any help would be greatly appreciated.

Ok i have always used areo ports and now i want to try a slot. I have used a few calculators and they tell me my length needs to be 23in long for the tune i want what length are they referring to? Overall length of the port ? Can some one please help lol I am looking to build a 5cube box for 4 sa 10s tuned to 35-36 htz I figured with the displacement of the subs and port i woul need a gross volume of 5.8cubes that would bring the net volume down to 5-5.1 right ? So far i have gotten the measurements from the calculator width-45in heigth-20in depth-14in. This box is going in a quad cab ram so i have space. Am i right with these measurements? and i am shooting for a mix of …

I'll be building a new box this weekend for my new Xcon 12. I have seen quite a few boxes with black carpet and white ports lately, and I really do like how they look. So I was gonna try one myself. Parts Express has some black carpet. One has a latex backing and the other one doesn't. Is there a plus to one over the other? Should I be looking else where for carpet? What have you guys used? I've never done carpet, just textured paint, and want something differant. I am just unsure what to get. Any help would be appreciated. Thanks, Tony Nelson

i was going to sound dead my box in and out with some raammat i bought ... does it really help all that much? i was going to coat the inside and outside ... is that beneficial or can I get away with just doing the inside?