SPL & SQ / Fabrication

It's for real

Hey everyone first off I'm new to the site so I would like to say hi. Now I have a 2006 impala and I have a fi bl 12 and I had a fully costom box build that is right at 2 cubic feet and is tuned at 33hz potted through the trunk deck. Now the sound is horrible so atomatically I think it's the box but my buddy has the same size box and same size port that was taken out of a mozda rx8 and it's just sitting in the bak of a Mazda b2200 and we put the sub in that box and it freakin pounds. We took his treo out and put in my box and it has good sound. So my question is why in the world does the fi not sound good? I have had it in boxes that load up in the truck and sound amazing…

to all the people in california this is the event you have to compete in this season! freeland is still trying to make a decision on where the south cali event is going to take place in its between castle park in riverside or at knotts berry farm!! i will keep you guys posted!!

Just put my old Alpine 9831 back in, when i turn the ignition over I get the loudest pop ive ever heard, all door speakers and sub real loud. Im thinking its the ground on the HU but im not sure. The wireharness for this HU is kind of ghetto, I got it off of ebay and there was no remote wire, so im pulling of the switched wire. Heading out to ground it better, what do you guys think it could be? Ive had the HU hooked up in the car before but never with an amp. the internal amp on hte HU is blown FYI, not that it matters much.

I have never seen this box design before. Anyone care to explain what this does?

I found a sweet deal on an older model eclipse. I am trying to get a job, but the economy sucks. I also decided, i am going to wait on the lincoln, until i prove to myself that i can treat my car nice, because i just dont trust myself enough yet (i'm clumsy). So for the mean time (and while i save up for insurance, the car and the stereo, i am toying with the idea of building a t-box for the back seat-area and into the hatch. Subs in question are (2) SSA xcon 18's, and a sundown 3500D. i am still deciding on a powermaster battery batteries, but Knu wires and fuses for sure. My goal is a low-end monster, maybe 25-28hz. i would like some of you box-gurus to throw me some po…

What are some good places to get this stuff? What am I looking for? Is there specific kinds? Are there cheaper ones and more expensive ones? How much is a good deal if I am searching on e-gay? How much will I need to make a 31x26x10.5 inch tub? How thick to I need to make it? Thanks Jerry

Well i got my RE comps from the SIN group buy a while back and it has just been these past 4 weekends that i have been working on making some tweeter pods....well actually like 2hrs of work total each day. i am finally up to paint...well here is a look back. Well here is the 2 molds. im not going to go into how to do this because there is already a thread filled with Fiberglass Tutorial Links Stickied. ya i know, the mat wasnt 100% saturated...old resin doesnt like to soak. Streching the fleece glassing the fleece a hole cut i know, not a good mounting andle by any means but we alerady discussed this for like 3 pages in a thread and the RE's have swivle mounts so …

I am looking to get a 15"or 18" to go into a sealed box for sq. Leaning towards the 15" at the moment. Car: 98 Mustang Location: Trunk Amp: MTX te1501d (birthsheet @ 1 ohm is 1556 rms @ 13.8 volts) Wires: 0 gauge on big 3, main battery to second battery in trunk, & from second battery to sub amp. 4 gauge to highs/mid amp from second battery. Stock 130a alt. but I'm getting a 270 Mechman and xs 3100d( will be under rear seat) when i order the sub or shortly after. If i go with the 15 the box will be 26.5L x 26.5D x 11H about 3.5 cubes before displacement. Sub will be upward firing. I'm tossing up the idea of the 18" but don't have experience with 18's. Any idea's if t…

I am currently looking for the best method or material that can be used inside an SPL based enclosure that can help get an extensive increase in pressure. Lots of people do different things but most follow others... Typical things tried is- sanding wood, applying resin, resanding, resin over, etc.... Ceramic tiles. Using heavy material such as marble or granite(not what i'm looking for). I am looking to find out if sanding and resining is what should be done, OR.. if laying material inside of an enclosure will yield better results. sanding and resining can lead to human error with imperfections in the smoothness and this is why i'd like to see if there are materials out …

As the title says, has anyone ever built a steel enclosure? Does it sound any different? Just curious if its been done, if anything was gained, etc. This is more geared for spl

So after using the Torres' box calculator I have come up with these panel sizes Sub diameter: 14.125” Top: 33 x 16 Bottom: 33 x 16 Sides: 15 x 14.5 Front: 33 x 15 (double baffle) = .21cubes disp Back: 33 x 15 ________________ According to the calculator I am left with 3.55 cubes for a sealed enclosure... Does that sound right? The lumberyard near me said they could make the cuts for me.... Any quick and calculated responses are much needed... Thanks -Danny

Hi all,has anyone built these ports and where can i get the formula to calculate the area and cutting angles please

Hey all.I was just wondering if I should get longer aero ports.Right now I have 2 4" PSP aero ports and they are kinda short in my opinion.I wasnt real sure on which way to measure them so I measured them from flare to flare.I was aiming for 35hz for my tuning.The flares right now are 11" long from flare to flare.The tube part is only 5" long and the rest of the length is the flares.Here is my setup info. I have 4 10" DC Audio Level 3 m2's with level 4 upgrades and a dc 5k My box deminsions are 16" Tall x 30" Wide x 23" Deep. So should I lengthen my ports to get more port area or not? Let me know if anymore info is needed please.Thanks

18in Sx btw . Ok, I got 17.31cuft to mess wt here 43.5x27.5x25. The box is gonna be ported to idk 32 sounds like a good number. Suggestions? It will probably be dual chambered, wt the port on the end. Is that to big or not big enough is my question. It says it only needs 6cuft for sql, so i guess 8cuft for one sub isn't that bad.

I'm starting a new build for my two DP 21"s in my Expedition, and I'm looking for some ideas. My ideas are in the above poll. Right now I have a subs up, port back setup. Current box is 20 cubes with 300 sq. inches of port at 32Hz. I'm looking at about the same volume and tuning for my wall as well. Possibly tuned a little lower, I loves my lows. The wall will be to the b-pillars. I'm basically looking to get as loud as possible on music, but this is for daily, so it's not going to be a burp monster. All votes, comments, and suggestions are appreciated.

Hey everyone. I was wondering if anyone could explain to me how the freq of a box affects the sound, like what a low freq is good for and how it sounds along with a higher freq? Also, when the inside corners/edges of the box are angled, will that give you better spl? And I was thinking of sanding the edges on the outside of the box to a curve to make them round instead of a straight edge...is that a bad idea? Thanks in advance, Jack3d **Any help is always appreciated

Picked up a buddies old back not too long ago(Sir-lancelot) he previously had vinly on it and used the carpet spread glue not the spray. My plans are to repaint it glossy black for a ht box with a couple of other changes BUT the glue is so thick and isn't coming off! What would be the best way to remove it back to bare mdf? I been using a heat gun but it will take hours and hours to make a significant progress that way.

Im about to start building a tube out of MDF for a sub box, but before I needed to test things out to see if I could. I also decided to take pics of it for a little tutorial if other people are wondering how to do this. I started of by finding the inner diameter I need. Im going to use this for an 8" sub with a 7" cut out. so my inner diameter is 7" Now outer diameter: I'm using 3/4 MDF so my outer diameter is 1.5 + the inner diameter' 7+ 1.5=8.5" Now I can find out how long I need to cut my board: take the outer diameter multiply times pi to get the circumference, which will equal the board length: 8.5 * 3.14 = 26.7" Board length is 26.7" Now I need the inner circumfere…

Ok we are in the works of having a show at the end of march or early april. depending on the weather... This time we will have 2 meters. head to head competition to see whose louder. We also plan to have an sq portion to the competition for all the sq heads out there. How many would be interested??? We are talking about having one every month in the spring and summer months. maybe some nspl and iasca shows we need feed back!

Okay new to the site. Just ordered two ICON 12's and they should be here in 3 weeks. I'm working on a ported box and needed some input if someone is willing to help. I've gone on torresbox calculator and I came up with some dimensions and would like to know what everyone thinks. Or if anyone has any suggestions. I want SQ but not where it would sacrifice SPL. It's going in an 08' Escalade. I'm pushing with a SoundQubed 2200. I have two sets of Hertz HSK 165's for up front on a PPI 900.4. I have two new Duracell Marine batteries and just did the Big 3 upgrade. Just really want to know what everyone thinks on my dimensions and how I should face the subs and port. …

I am new to the forum and I am trying to get help on something I just dont seem to be understanding. I have a Ford Explorer and I have two Lethal Injection 12's (4ohm/dvc model). I wanted to see how they sounded sealed, since I couldn't find anyone on the web. Only people asking has anyone done it. They are clean, crisp and loud being pushed with 800watts each. The sound quality is phenominal whether soft, medium or hard hitting. If I open the front doors only, its like a huge ported box turned up using old school SPL comp cd's. The pressure level is unreal for a sealed enclosure. I cannot say enough good things about these speakers. Best investment I made for not a lot …

Ok, now, i need someone to DESIGN me a sub enclosure for a FI BTL 15" Ported ~34 hz cant be more than 16.5 in tall, 34 in wide, 18 in deep..... shouldnt need to get that big now.... I love google sketchup, so if someone whipped it up on there, then i would be forever gratefull thanks for anything...

Hi All, Here is what ive learned form messing around with my Term-Lab and my Daily tuned box (2.5 cuft with 41 sq of port tuned to 34 hz wave guides and double kerfed port). i have learned that the box is loudest firing towards the drivers side of the trunk completely sideways like this: Im hitting a 146.7 outlaw doing this at 36 hz. Ive also tried flipping the box upside down and the port and sub position flipped and it doesnt matter on the meter which way it goes. now im thinking a 40-42 hz tune with aero ports, possibly 2 6" ones. now i want to hit a 150 with this outlaw, i believe it would be simple if i tuned the box higher and get some more control over the high…

not sure if I should post here or the head unit processing forum so sorry if the wrong place I did a forum search with the word active with no real results I am going to be purchasing a 80prs by pioneer here pretty soon and am very intrigued on what exactly active is does anyone have any good quality sites you could link me to with good information not common rumors or otherwise so I can begin my journey of discovery I don't mean to try and be spoon fed but we all know google isn't the most credible source so I would like to get credible sources from the experts first then after I research those and learn something then I will probably come back to this thread and pick yo…