SPL & SQ / Fabrication

So... me and my dad are in the process of rebuilding a 1970 vw bug, and of course... i plan on putting a system into it. the main problem will be with the placement of the subwoofers, bugs are tiny vehicals with almost no extra space. we would prefer to keep a backseat but would be willing to give it up if need be. So does anyone have any ideas for a good subwoofer and somewhere to put it. money shouldnt be too much of an issue but it must be within reason... Im going for SQ but would still like it to get hella loud. i was thinking maybe 2 10in Fi SSds in a sealed box... any ideas or suggestions would be appreciated. My next question isnt really fabrication but while im…

Just waiting on getting my two 15" icons and, since I have nothing better to do I was wondering if there was any box type or orientation you'd like to see me try in my 2004 Impala. I'm going to try a ton of different boxes and orientations with a lot of testing to see what works out best in my application and I wanted to have some fun with it. I'm NOT doing a wall, but ill be pretty open to anything else you'd like to see me try. I might actually end up using your idea if it works out the best! -Mike

Just to start off, I'm building this for the heck of it and recently picked up an inexpensive Memphis audio 15-ms84 to build a box around. This box might be placed in a car just to see what it will do but will stay mostly in the office. The pictures should give you an idea what I'm trying to do, and should show most of the specs of the box. Basically using an 8.25" x 1" slot port that is 23" in length with a tuning around 38 hz. The box volume is .59 f^3. The response curve seemed to have an nice flat-ish shape that hopefully will make it sound 'full' to the Fs. If I'm doing something completely wrong, please let me know - Gently please. Thanks John

Since my local box builder seems to think he needs $270 to build my sub box I decided to tackle it myself. I have been reading up on box building when I came across a forum that suggested making a box panel that sandwiched a layer of cork inbetween 2 layers of mdf. Another suggestion was to use sand inbetween 2 layers. As the latter isn't feasible, I am interested in the cork option since it is fairly cheep. I understand that the cork is supposed to help dampen the box. Has anyone utilized this practice? Or are they blowing smoke? They also suggested using dynamat instead of cork, but that seems a bit pricey.

http://www.craftsman.com/shc/s/p_10155_12602_00964473000P I found one of these at a local pawn shop and was wondering if it would be worth picking up for 50 bucks. The one at the shop has a attachment that looks something like a router and has a circle cutting attachment among other things. Really would just need it for cutting circles, and then possibly other household things. Sorry if this is in the wrong section didnt really know where to ask about tools here.

http://www.buwaldahybrids.com/phpBB3/viewt...?f=7&t=3362 any thoughts?

Hi I'm making my box for 2 12" Fi SSDs and I can get my dimensions from the RE box calculator but how could I calculate a double baffle into it? I have been thinkin about it and I can not think of how I can calculate it and keep it at 4 cubes.

im headin out to the store tomrrow to get some stuff well im there i wana pic up some new screws that will keep my sub down nice and thight. i did not go with a dubble baffle and with my new 15inch ssd on its way, i wana make sure that my sub does not lift out. here is the thing my last sub a audioq 2.5 was jumping around pretty hard in the same box the ssd is goin in. Can any one lead me to the right screws so i will not have a issue? I will be bolting the box down better to make sure the box it self is not goin no where as well. thanks guys Joe

when building kick panels for 6.5 comps would it be better to leave it sealed or to cut a hole and vent them into the inner fender. what is the sound diff in the both. thank you.

Well, i think its time for a custom box. The current box was made for 2 12" w7's. my speakers are 10cvx122 kickers. specs are min port, 1.75+port and max 2.25+port with the port being 63" sq x 20" long. figure that out. 87.32 spl, 3.74 Revc, .0507 Sd M, 18.62 BL TM, 57.98 Vas liters, 28.44 Fs Hz, 197.28 Mms Grams, 10.209 Qms, .38 Qes, .3665 Qts, 15.4mm XMax. whatever all that means, lol. The max dimensions in the truck are ______14____ and about 4' wide maxx. / l / l 1-1.5' …

first thing sorry guys ive tried posting this in the fi section didnt notice it was in the wrong place but im trying to find out the cubic feet on this box and its tunning cause i made it but in order for it to fit i had to chop it down 2 inches if anyone has any ideas or any help it would be great and its for a fi bl 15 and again sorry for the double post

Hi.. this is my first build so i have little experience right now. Im getting 1 ICON 12 with either an AQ1200 or an AP1500 amp. I drive a 2000 jetta, the trunk is about 40 inches wide. I am not really sure what type of enclosure i need, the specifications for it, or where to get one so any help would be nice.

Hi Guys, Hope you are all well and i aslo hope that some one can assist me with working out the correct spec for a true SPL box. please note I will only be doing SPL with this box. Ok so I have 18mm ply wood, 1 12inch subwoofer, 1 amplifier and 1 battery. Here's what i'd like to do Get a minimum of 151db's from this setup Equipment DD Z1a NSB 170 12v Targa TG301-DW The sub specs are as follows and i could be wrong because this is taken directly from the site. 12" COMP SUBWOOFER - DUAL 1 SPECIFICATIONS Fs (free air resonance): 48.7 Hz SPL (efficiency, 1W/1M): 89 dB Nominal Inpedance: 1/2 Ω Qts (total speaker "Q"): 0.606 Qes (electrical "Q"): 0.732 Qms (mechanical "Q"): 3.5…

i have 1K on two Fi BL 12 rear firing in the trunk. would putting a hole in the rear deck improve SPL?that in the cabin will it cause problem for my 6x9 on the rear deck??? what the best way to do it?? Thanks Inadvance!!!!!

Is there someone out there who can help me with a custom enclosure design with a single 10 inch jl audio 10w6v3. The enclosure i am looking for would need to be 1 cubic foot with aero ports tune at 35hz. As far as space i have to work with i draw a simple image of what the space i have to work with.

i hope this is the right section butt.... Im still a nexb to box building and I want to make a ported box. It will house two sound splinter Rl-p 12s. I still need to find an amp so i dunno the exact wattage ill be giving them, but i want to give them like 600-800 a piece so thatd be 1200-1600 total. I want kind of an LSQ tuning so would 34hz be alright? (thats what the site suggests) If not then just tell me what you guys would think the best LSQ tuning would be. Then how do I figure out the dims of the slot port once i kno what hz i want??

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

I'd like a box cabinet plan drawn up I don't know if I'm going with this design yet or not, but if I do I'd like to have a plan for it. I'm basically doing a homebrew version of this: http://www.omegaloudspeakers.com/ts33.htm Using these drivers: http://www.madisound.com/pdf/fostexcabs/fe126e_encl.pdf If it models well, I wouldn't mind going with a tower speaker instead of a bookshelf - although I don't know exactly how it would react. Thanks...

What is considered the windowline in a competition vehicle? My doors and my trunk windows have a different height. Also, do they have no wall classes with a height limit vs the window rule?

This is a box I am building for a friend. For an 8" Kicker L5, There is very minimal space in his Jeep TJ, so the height is pretty much no give for the size of the sub, even though it is an 8". This is the first box I have ever built before, so I know it may seem a bit rough in some parts, but I am working on it to make it look good for my buddy. If you guys have any comments about it to make it better, please let me know! after all i am only a beginner! Thanks! 0408001333.jpg picture by jaketrials - Photobucket 0409001306.jpg picture by jaketrials - Photobucket 0409001306a.jpg picture by jaketrials - Photobucket 0409001306b.jpg picture by jaketrials - Photobucket

Originally I thought my enclosure specs were very close to these, tuning and volume wise: 42W" x 22H" x 22D" - outer dimensions= 9.84961ft3 gross volume 7.3ft3 net volume tuned to 32Hz 6W" x 20.5H" for 123in2 of port area port 1-14.5" + port 2- 7" = 21.5" port length After reading through Chops end correction thread, Ive decided to do the math myself and find out what Ive really got. This is what Ive come up with. Im way off... The port length is actually 27.5". I had no idea how to measure the port. The tuning is more like 30.3Hz port volume calculation: 6W" x 20.5H"=123in2 123in2 x 27.5"=3382.5in2 3382.5in2/1728in2= 1.96ft3 of port volume 9.84961ft3-1.96ft3(port volume…

I'm just curious what are the advantages and disadvantages between TL enclosures, 4th order bandpass, and 6th order bandpass enclosures. These are all very new to me!

What are the benefits of using aeroports rather than a standard port? Are there any negatives? Just trying to learn a bit more before I waste my time building a new box. Thanks for the help guys

not sure if this is the right spot but anyways any of you guys try to fit 1 or 2 of these under the seat of a pick up before? the truck actually is a 2006 F 150 super cab.....dont get it confused with a super crew. Im gonna try and figure out the box today and i just thought of using these i was going to run two 8's ported off 1 SAZ 1500D. im also considering two RE 8's too but i figured the AA would handle the power better than the RE's. Anways the other question i have is how much room is good to have between the cone and the floor of the truck. cuz i know i should beable to fit the RE's in there but the AA's are going to be tight as they are a bit taller in depth t…

i have two fi bl 15`s n i wanna build a box for them tuned to 32hz but i have no idea wat size the box needs to be ? the build is for my xterra