SPL & SQ / Fabrication

I know some cars are louder facing back and some facing foward sealed from the trunk. i was wondering if anyone knew what was best for an 04 hyundai sonata? i was looking at a 15in or an 18in with between 3000-3500 watts depending on which amp i deicide on. looking for loud daily.reason for one sub is cost. thanks alot.

when i make enclosures all can make is sealed enclosures. but id like to start and learn how to make a ported enclosure. i kno theres alot that goes into making these awsome boxes. i want to know how do u kno where walls should go and how big ports should be. and basic stuff like that. this is my first ported box. i got a 10" jl w0 in a sealed box that im not using and wanna make a ported box for that. sounds great but i wanna learn how to make ported enclosures. so how do u do it without guessing? thanks.

So i made a 4th order bandPass for 2 obsidian 12s out of birch. I started sanding the enclosure and filled it all the screw holes sanded all those spots with 60/120/220 grit sand paper everythings smooth(so i thought) i started painting the enclosure with kryole dual primer and paint(spray can) i thought it would be good to use that lol well im pretty stupid to think that was gonna work great. The corners are very dull along wIth the edges that are sanded and the top and sides are super shiny and it looks like shit. Whats a good paint to use to paint birch with and have it turn out super glossy. My goal is to have it very glossy and not be able to see with the edges meet …

Hey everyone, Im in the process of building a new system in my 2002 WRX Sport Wagon. 1. Head unit: Pioneer Avic N1 2. Amp: Planet Audio BB175.4B RMS Power (2 ohms) 195 WRMS x 4 RMS Power (4 Ohms) 140 WRMS x 4 Bridged Power (4 Ohms) 345 WRMS x 2 Signal-To-noise Ratio 102 DB Frequency Response 20Hz - 20KHz Dimensions: 6-1/2" W x 2" H x 16-5/8" L FEATURES Variable Bass Boost (0 To +12DB) Switchable Input Sensitivity: 100mV-2V Or 2V-8V Tri-Mode Operation OBAC-1 Audio Enhancement System Continuously Variable 18DB/Octave High And Low Pass Crossovers Low Level Inputs And Output 3. Front Speakers: Kenwood KFC-P708 65 watts rms 4. Audio integrati…

What is best used to paint the port latex? Or oil based mine is a wall with top port so it's the first thing you see just wanna make it pretty and any color sugestions?

I'm currently thinking about building a box for a 12 btl with both the sub and the port aimed into the cabin, sealing off the trunk from the cabin. I have looked at tons of boxes doing this but they all port on either the right or left side of the box. I often have 4 people in my car so this would mean the seats would have to remain up giving the port very little room to breath. My middle seat has an arm rest that comes down and my idea was to have the box port right there so that i can just put the arm rest down and give the port a place to breath. My question is can i port the box in the middle and place the sub to either the right or left of the port. I don't have a i…

So my build calls for my 4" aeros to be about 38" long so I have to do some piping in my box with 90 and 45 degree turns. When measuring I'm assuming I stay in the middle the whole time and measure flare tip to tip? The turns are what throw me off when measuring. Thanks guys

Currently designing a Subwoofer Enclosure for an L7 15 for a 2001 Lincoln Towncar. I am planning to build the enclosure so it would is on the rear ledge in the trunk .. my question is is it bad for partial surface of the cone to only be 4 inches away from a wall of the enclosure? The enclosure will still maintain volume required

I have been approached by a customer with 4 Kicker Warhorses and 4 Kicker Solo X 18s. He is having me build a 1990 Astro van to be all out SPL. i am looking for any help in the matter of tips, tricks, pointers, etc on how to do this install. Lexan windows are already in plans. Concrete floor will be a must (how do i do this? how thick? what kind of concrete? just the cabin or all the way back?). Lowering roof (how should i do this? what should i use?). Custom Dash (what do i use? how should i construct it? what shape?). Center Counsel (should I build one? just leave it open space? what should I build it with? how should design be?). should i cover the wall floor roof dash…

what type box would you suggest for a sq setup i know the norm is sealed but i've heard a few ported boxes and they sound pretty nice give me some of the pros and cons of both btw subs being looked at are idqv2 12" IA LI 12" and SA-12 thanks for any heip provided

I'm wanting to get some feedback/advice on this box I'm working on for my recent purchase from SSA. Any glaring problems in the design? It will fill the area between the back seat and hatch in an '05 Scion xB. Three 10" SSA DCON S4 subs wired to 1.34 ohm Amp: Audiopipe APSM-1300 (1000w @ 1 ohm) - will be replaced eventually, when funds allow Gross volume: 3.95 ft^3 Net volume: 3.3 ft^3 Port Dimensions: 3.75" x 11" x 27.6" Port area: 41.25 in^2 Desired tuning: 32Hz Would it be better to make the box taller and use a square port with more port area, and longer, in the same location?

Why is it bad to have the height to width ratio larger than 1:8? I made a box that is too small.... and thats the only i really can make my box tund low enough... i fucked up and now im out 2 sheets of mdf and a lot of time and effort... damn..

SO I am finally looking to replace my factory starting battery and I am looking at a couple different options. THe Powermaster 2400 or 2700 Kinetik HC2000 Tsunami/Yellowtop (not really looking at this option just put it here) NSB 90 Stinger 1000 (their newer line) Just looking for suggestions. My budget for battery would like to be less than 200 if used or 250 or less new.

HEY JUST WONDERING WAT KIND OF NUMBERS I WILL BE LOOKING AT WITH 4 15' DB DRIVE IN A WALL POWERED BY A MASSIVE AMP IN A 95 INTEGRA

Hello, I have 3x SSA DCON's in a box that I handmade from a design from a member here. I recently bought a new SUV and the box will not fit. The box is too wide by 1 inch. The inside area of the port now is 14 3/8" X 7 1/2" ....if I cut 1 inch off of the port then the new port would be 14 3/8" X 6 1/2". Would this change the sound of the subs a lot or would it be ok to do this ? Thanks in advance for any help.

So tonight at work I was discussing my upcoming sub build with a few guys. One of the master debaters argured that stuffing a sealed box with poly-fil was recommended and the other said it was a joke. Yes? No? Why? Thanks.

Hey all. I have my Fi SSD 15 in a box right now that is tuned wayyy to high. So I was crunching some numbers for a new box. Here are the specs, can you all look over them and see if everything is correct please? 28" wide 17" tall 28" deep Port: 4.5" wide 15.5" tall 41" long Sub up port back. 3.9 cubes net, @ 31hz, 17.88 sq in of port per foot Also with that box, should an SSD 15 hit the lows pretty good?

Hey guys i built this box before i even got the subs just wanted to show you guys. The dimensions are 30x14x14 its 2.5 cubes tuned to 30 hz (2) 3 inch areos 14 inches each. let me know what you think. And how you think it will sound. im going to put 1700 watts rms @ 2 ohm with my saz 3000d.

i would like some idea's please i have about 3.352 cft internal external 40.5"width 10.5"height 18 depth,i wish to use 2 or 3 old usd 1260 subs. speaker paremeter RE 5.24 QTS 0.39 QMS 15.60 FS 12.29 QES 0.40 XMAS 3.708 LE 1.01 Z 8 OMH PE 200 i would like to try and build a transmissione line box. i found this info for building the above box.please can any one help me all help will be gratefuly recieved. below is an example of how to make a transmission line 43.46 / 4 = 10.86 10.86 is the throat length of the enclosure. Designing a transmission line enclosure ________________________________________ sample specs. -- radiating area of subwoofer …

I would like to know what is the most accurate way to calculate QTC of a sealed enclosure. For example in WinISD i have the specs for my speaker in there and in a 1.2ft^3 it gives me a QTC of .704 In BBP6 with a 1.2ft^3 enclosure it gives me a QTC of .56 And Calculating it from the formulas on these two sites. http://www.diysubwoofers.org/sld/sealed1.htm http://www.carstereo.com/help/Articles.cfm?id=29 They give me a QTC of .62 with a 1.2ft^3 enclosure. So I would like to know which way is right?

Vehicle :2002 nissan frontier crewcab Location in the vehicle:back seat Space available (Length x Width x Height):26x50x31 Subwoofer make and model:fi bl Subwoofer Size:18 Number of Subwoofers:2 Type of Port (Kerfed, Slot, Aero, etc.):aero What type of music do you like?:rap Is your goal SPL or Everyday Music?:everyday Tuning Freq (Hz):32-36 Volume :around 19ish i think i am building a box for my truck i am taking the backrest out of the backseat to make some more room the dimensions are with it out i want to do subs either facing forward or up and the ports down the middle facing forward but i need help with how to tune the box with aerports i want around 14cuft of air…

Hey guys, I have 2 Older model Audiobahn Immortals (not the flamed out crap, and I got a good deal so dont rip on me please). I hit 140.8 legal on the TL with one in the trunk in a small box firing up in my civic, and want to put both in my backseat and make a temporary wall for a comp coming in a couple weeks, doesn't have to be perfect, but any pointers? People around here don't know there chit so I want to show people what a loud car is compared to some of the retards around here. Ill try and get some pics up but wondered if anyone could help at all. Thanks guys. Andrew

Will using 2 ports work or will my tuning be off? I'm going to be running a Fi BTL 18 in a 6 cube box and want to run 2 ports, one firing left, and one firing right. as long as I have the same area and length would I be OK?

I need a box for.4 12 sa ported to be put in a 99 crownvic can anybody.help me this and a set price would be nice i live in fla

got my new amp yesterday... shortly thereafter i made an amp rack after carpetting my box... it's not totally done yet. will make a few changes/additions in the upcoming weeks. tell me whatcha'll think...