SPL & SQ / Fabrication

I recently changed the enclosure of my sub. Nothing else has changed : same electrical, same amp,... The old one was too small, and badly tuned (too high). The new one is really a good one. When I made the change, I was not so happy with it. And after a few days I start to like it more and more! Could it be that the sub need to adapt to its enclosure for some time before playing as it should ? Maybe I am just getting used to it! What do you think about that?

I currently drive a 2006 galant and i have been having trouble with getting upper bass( about 50hz and up) out of any setups i have ran. Any where above i say about 50hz is extrememly quiet, while anything below is gets low & loud, .... Set-ups i have ran include: 1. (2) infinity reference 12's -kenwood 9103d @ about 500 R.M.S. - 1.25 Sealed each before sub displacement - rear firing 2. (4) Pioneer Champion Series Tsw-304 - Kenwood 9103d @ 1ohm - about 800-900 R.M.S - about 1.1 sealed each after displacement and bracing - up firing sealed enclosure Current & temporary setup: (1) Kicker Cvr 15 - Audiop…

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…

I have an 02 mazda protege sedan I'm planning on making a custom kick pod out of fiberglass for my front doors. I'm going to put my hertz mlk 165 (6.5'') midbass component drivers into the kick pods. Will be ran off of an eclipse EA4100 amp bridged to 150w x 2 (for now) I like listening to rock music with a lot of bass around 80 hz. My sub is a dc lvl 4, ran off of a sundown sae1200, Right now its in a ported box tuned to 32 hz, but I'm probably going to be building another box sometime (idk what kind) what type of enclosure would be the best encolsure for my midbass drivers? I can make a sphere-shaped enclosure; does shape matter for a sealed box? while we're at it, what…

Hello everyone, This is my first post.I currently have 2 dd9518g dual 4 ohm subs,1 hifonics sampsom amp driving these subs in a 12 cft box ported to 35 hz with 140 sq in port. this system is in a 2007 chevy avalanche with the midgate removed.I currently hit a 149.5 db @ 47hz. I have 24 cft avaliable for a new enclosure for the new season and would like to try a bandpass box.This is a daily driver so i cant make any major mods to the truck.The truck have 2 layers of dynamat on the doors,roof floors and bed of the truck.I currently have a dual alternator setup with 6 kinetik hc1800 batteries for a electrical system.Believe it or not i also use this vehicle for sq also.I am …

Hey guys! Im looking for someone who knows how to build sub enclosures for a decent price. Im located in Shreveport, Louisiana, so anyone around the area can reply. I want a ported box for 4 15 inch havoc subs. Please help!

My frnd recently accuired two RFP3SD subs but my knowledge on box design for these shallow subs are limited. Please help me with box capacity and tuning(ported). I know normal RF subs like a bitt of high tuning but for these ...i have no clue if they will like it to be different. His goal is to squeeze it in a GETZ so space is a problem, if one will fit better, we might just go that way but he refuses to change subs so ill try and get this working for him. He want it loud with a bit of oomf but IDK so would appreciate your imput. Thanks guys.

ok so i built a box for my new nightshade 18. it is just under 5 cubic feet before sub displacement but after port displacement. it is tuned to 31 hz b4 the sub. it sounds great. my question is if the port area is too small. the re calculator that i used said that the square port area was 55.5. idk if this means inches or what but im guessing inches. the sub performs great at higher frequencies but the lows are kinda lacking compared to the 18" fi q that i had before. any info would be great. also if somebody would be willing to design me an optimal box that would be great too. my dimensions are 36" wide 22" tall and 20" deep. sub and port would have to be facing up. i li…

I am working with a new AS1 competitor trying to get them a really nice score this season. Basically, rules are as follows- System must reside in trunk only, car MUST be off and play a song only. Well, he currently did a 140.2 with 2 Fi SSD 10s and an audiopipe 3000w using a 35A fuse. This is my theory- Because MECA's classes are limited on fuses + cone area.. and cone area and power go hand in hand with each other... as long as the space is there... more cone area and less power "should" result in a higher pressure output. He was able to pull just over 100A off that 35A fuse to get his score. We aren't restricted on cone area but cone area + fusing x 10 cannot surpass 55…

Okay, I have a guy that lives behind me that has three 12" Kicker CVR's . He currently has them in a very crappy box and is wanting me to throw a better box together for him. I stand to make a few bucks from this project. that is all. there is no possibility of him competing or even keeping this setup long term. just a better box than he has and some cash in ol' chop's pocket. So for the sake of getting good responses, i am not looking to buy these, i only want to get some good input on what volume and tunning would be good for them to get loud with. not a fart box, but i am sure he has no interest in catching the lows. I have not used these subs before..... off the top o…

If I drill a whole just big enough for the speaker wire to pass through what should I use to seal up the whole so no air leaks out? Thanks

hey guys, i used the re box calculator to make a box for my 10" fi bl. the box is 1.457 cubes for my sub after port displacement. the port is tuned to 33 hz. it doesnt sound good at all. i followed the cutsheets and everything and there is no leaks in the box that i can find. im just kinda wondering why it doesnt sound good. also, i used 3/4 inch mdf for everything but the baffle and the back. i used 3/4 plywood for that. could that be why it doesnt sound good? please any help would b great. thanx.

Does anybody know where one us i want to see what i can hit?

hey, im thinking about building a pretty loud setup with just 1 bl 10. its gonna be for competition use only, just for the hell of it lol. its already in a good daily box...but i kinda want to build a burp box since i have 3/4 of a sheet of mdf laying around...im just kinda lost at what to tune it to. ik im supposed to tune high, but how high? i have no idea of what my car peaks at tho, since i dont have anybody around here that uses a termlab. i am using a hifonics 1610d and will b running at 2 ohms on it so about 1200 watts is what the amp puts out. it will be a box for competitions only, so if anybody has any ideaso of what to tune it to that would be great. also, its …

I have a 98 single cab ford ranger. Idk if I'll be satisfied with shallow mounts. I've been looking into the fi q. I really think I could fit it behind the seats with he sub directly behind the armrest. I think the recommended sealed volume is about .6-.8 cu ft for one 10" , and I've always wanted to try a Q out. Especially for lows. Anyone see any hope in this? I'm starting to become a little discouraged. According to box calculators, I could make the box out to about .8 after sub displacement. If I should just stop wasting my time and settle on shallow mounts, please give me cheap recommendations. I've never really heard one.

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

hey guys, i was looking for the recommended enclosure size for the eclipse sw9122, and i cant find them anywhere, my specs of my trunk are 35" wide, 20" deep and 22" tall...but that is way to big for this 12 i would think. i have been searching google and bing for about 2 hrs and all i can find is what other people have used. any help would b great. thanx.

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.

Hi, A friend of mine who owns an Xcon15 has just built a new box for its baby monster sub. The old one was 3.5 cu ft at 32 Hz, and the new one is 3.7 cu ft at 32 Hz too. Not much more volume, the double baffle upside took quite a bit of what we expected. The new box has a kerf slot port : it's really beautiful, and was easy to do wit the design provided by Dylan. First try : got it !!! I will post pics tomorrow. Just wanted to say that the sound is different now. Don't know how to say it but it gives more low notes. We did not expect so much change!! And we love it!!! The owner had a processor(or active filter, I don't know exactly), he took it off. He turned the bass boo…

My goal this yr. is farely ambitious. I want to post the loudest Trunk score in DBDrag. This is not gonna be an easy task by no means. Thier are some seriously big shoes to fill following in the likes of Dave Dasilva, Mike Stiers, Don Doyle, Steve Sears to name a few. I will have to achieve at least 154+ to achieve my goal. My starting point See ya in the Lanes

I have been pondering on what to coat my wall with. I was originally going to go spray paint but motha f that. I want a plasticy rubberized coating on the box. My friend suggested herculiner. Have any of you had any experience using this stuff? Is there something better that I can use that will work good?

Just trying to get an idea on what kind of screws are best for putting together a big box that is made of 2 sheets of 3/4 MDF stacked. (1 1/2). What about sealer? i know some people use liquid nails, but have heard other people say no way. just maybe some options on this critical piece of high pressure builds.

i've been at this for awhile trying to get a design for 2 15'' lvl 3's.. i wanna go subs up port back in my tahoe. any help would be appreciated.

Im a noob at woodworking and have a couple of questions for those that are experienced with routers. I currently have a porter cable fixed based router i snatched up from a pawn shop for $20. I wanna get a plunge router as well in the near future. Collet size is not an issue because both routers are 1/2 and 1/4 shank interchangeable. What kind/size/length bit do i need to do hole cutouts and also what size bit for roundover's for port edges? Assuming 3/4 mdf is being used. Thanks

so i inverted my 18" fi q today and have the motor sticking out...it is alot louder. i can now do a hairtrick, which is what i have been striving for lol, my question is....why does it make it louder? is there any theory behind it or is it something that just is?