Jump to content
View in the app

A better way to browse. Learn more.

SSA® Car Audio Forum

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

SPL & SQ / Fabrication

Calculations, Concepts, Designs, Theories. All General SPL Or SQ Questions Can Be Discussed Here.

  1. Started by gadgeteer123,

    I would like to know where I can get some MDF for a temporary/test enclosure I plan to build, I don't care how cheap or low in quality it is, since this will only be a test enclosure, I live in southern wisconsin, if you know of any stores here or any online shops that are cheap let me know. This will be for my 15" xcon for a temporary sealed enclosure for now, and after I get it in its new enclosure I will use this box for future testing purposes. i did do a quick search through the forums and I got zero results, kinda weird.

    • 1

      Reputation Points

    • 16 replies
    • 1.1k views
  2. Started by mrbobian,

    I would like to get a few different tones on a CD or something to play around with, where can I find some? Thanks, Mike B.

    • 0

      Reputation Points

    • 1 reply
    • 628 views
  3. Started by joey_kev,

    Hi all, I'm designing a custom boot for my car, what is the best way to place 2 x 12" phase aliante subs in a boot? I was told the best place would be one on each side (one on left side and the other one on the other side). and I would love to do a fibreglass job something like this: but on my car would be 2 of them..so one on the left and the other on the the other side. what do you think? or is it better to do something like this (which one is better, sub firing the front of the car or the rear)?:

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  4. Started by cruzer23,

    as u can tell, no where to put subs under the seat. behind the seat, there is very very little space. The back seat is a 60/40 bench seat. that means one side is a seat and the middle seat, while the other seat is just 1 seat. lastly u can see that the console is not very wide, its not even 10" wide so cant even do a 10" sub there unless someone has an idea. only way i see console box working is if i downfire it, but it would be a tall box, as the sub cant mount between the seats, so it would be above the seats. so take a good 5" or more mounting depth sub, +the 4 inches to get over the seat+ 2-3 inches behind sub, it would be really tall. also behind the console, i tried…

    • 1

      Reputation Points

    • 42 replies
    • 4.9k views
  5. Started by cheese20323,

    I'm going to build a box just want to know were to buy mdf

    • 0

      Reputation Points

    • 11 replies
    • 868 views
  6. Started by trex-btnhfan,

    Okay this year I compete in DB Drag Street B, and SLAP S2. Next year I want to do street max 1-2 in DB Drag and SS1 in SLAP I currently have 2 vfl 150.1s I like them, but they just arent doing it for me on 14v. I want to get new amps in a few weeks, and hopefully use them next year too. I have a few in my mind I have been thinking of, but I wanted to see if anyone could chime in with some good, strong amps at 14v. Thanks.

    • 0

      Reputation Points

    • 22 replies
    • 1.9k views
    • 1 follower
  7. Started by TreezNSteez,

    making a custom enclosure for two sundown sa12's. which would be the best box for them? no dimensions yet, not quite sure how to calculate the volume of a ported box. --obviously the port is not to scale with the rest of the box, just gives an idea-- i felt i could draw them out better than explain them, even though they are the common boxes. feedback? suggestions? everything helps.

    • 1

      Reputation Points

    • 39 replies
    • 6.1k views
  8. Started by Chovich,

    Which box is best of them all? Subwoofer is Alphard DB315 (2.5kw) 1600Rms clamped

    • 0

      Reputation Points

    • 2 replies
    • 1.9k views
  9. Started by Lschevy,

    im not that good with google sketchup, but i was wondering which design would be better for a trunk setup porting through the rear deck? 33d 17h 35w with three 6" aero ports two sundown z 15's saz-3500d

    • 0

      Reputation Points

    • 0 replies
    • 502 views
  10. Started by zdoc,

    I have an 18" zcon on order so I'm starting the build here in the next couple days. I have two designs worked up and just curios what every one thinks would be better, more so concerning port area. I plan on using either a 10" or 12" round port. Box will be sub up port back in an 06 xterra. First design: 6.93 cubic ft. after all displacements with A 10" port tuned @ 37 hz port area = 11.38 per cube Second design: 7.4 cubic ft. after all displacements with a 12" port tuned @ 37 hz port area = 15.28 per cube Just curious what everyones thoughts are, thanks

    • 0

      Reputation Points

    • 2 replies
    • 732 views
  11. Started by loud lincoln,

    is the DD9112,AQ LW12,or Eclipse Titanium SW9122 better for SQ?

    • 0

      Reputation Points

    • 8 replies
    • 1.4k views
    • 1 follower
  12. Assuming all have the same sealed/ported volume and same port size. I know the pics aren't to scale so don't take that into consideration. I have seen pretty much all of these types used, so I know any would technically work but I wonder about cancellation with all but # 2. The box would be for 8 10's, tuned to 45hz with about 35 cubes total if you're curious. I would have never considered facing subs at each other in the past but I've seen some of the loudest 4th orders with subs facing right at each other like design 1 and 3 so it might not be as much of an issue as I was always told. All are 4th order walls in case that wasn't obvious and the crap drawing is an overh…

    • 0

      Reputation Points

    • 11 replies
    • 1.5k views
  13. i just got paid, and have 70 dollars to spend, so which is a good palm sander, and where to find it thanks

    • 0

      Reputation Points

    • 15 replies
    • 2.4k views
  14. Started by ShagggDiesel,

    I'm in the process of designing an enclosure for my Fi BTL UFO 12. I've drawn up two different designs with the only difference being the way the port is constructed. I've seen it done both ways, but I am unsure which would be most beneficial in my situation. Each design is 2.85ft^3 net tuned to 33hz for a front firing setup sealed from the trunk of a 99 Pontiac Grand Am. Does anyone have any experience/input on which would work best for me as far as loading, port noise etc.?Please use "left design" and "right design" when referencing for clarity as I am unsure what to call each one specifically. Note: I will not be adding any 45's within the port, but each edge will be…

    • 0

      Reputation Points

    • 1 reply
    • 705 views
  15. Started by danracer,

    Hi, i have 2 offers for subs one is for 1 mt 15" quad .7 for about 300-325 and the other is for some 10" xsite D4 which i was thinking to get bout 6-8 for 28 ea. so...which should i get?? i want spl btw i dont care much bout sq... edit: i have a SAZ-1500d and planning on getting a 2nd one

    • 0

      Reputation Points

    • 8 replies
    • 983 views
  16. should i face my subs and port into the car or both to the rear. these are not the only two options but im looking for the best way to get the best sq for a daily driver.

    • 0

      Reputation Points

    • 3 replies
    • 1.7k views
  17. Started by ShaneSauce,

    3.7 cubes after port displacement with 48 square inches of port vs 3.2 cubes after port displacement with 56 square inches of port. Fi SSD 15" I know it probably wouldn't be a huge difference but which would get louder? In one you sacrifice air space but gain port space and the other you gain air space but sacrifice port space. So what I'm trying to say is which is more important when figuring loudness?

    • 0

      Reputation Points

    • 2 replies
    • 622 views
  18. Started by wof131s,

    I was told by a former "audio guy" that althought 3/4 MDF is used in car audio enclousers, 3/4 partical board could be used to reduce the weight of the encloser. How tru is this?

    • 0

      Reputation Points

    • 10 replies
    • 1.2k views
  19. Started by HCCAfan,

    jsut curious who all is excited that both will be offered in the ame even? I know me and my team are. Who else?

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  20. Started by blowthemup,

    Who are the reputable box builders hanging out on this site? Going to be needing a box sometime soon.

    • 0

      Reputation Points

    • 7 replies
    • 1.4k views
  21. Alright. Here is what I have to work with. The box will be for a 12" ICON. I want it ported to play low and deep. As you can see from the picture, the only dimensions I have play on are X and Y. I know nothing about round ports so help me out here. The ports coming out the top will be placed directly beneath my open 6x8 reardeck holes.

    • 0

      Reputation Points

    • 7 replies
    • 886 views
  22. Started by trex-btnhfan,

    Any competitors with a trunk here? So far I am at 147.4 legal on the term with no testing and a box with the wrong tuning. Anyone have an tips/hints?

    • 0

      Reputation Points

    • 22 replies
    • 1.9k views
    • 1 follower
  23. Started by Nshaffe5,

    Looking for an expert builder to design a subwoofer box for me. Who's a good choice at a decent price?

    • 1

      Reputation Points

    • 12 replies
    • 2.7k views
  24. Started by RangerMan,

    Like the topic says!

    • 0

      Reputation Points

    • 19 replies
    • 3.4k views
  25. Started by KickinAudio,

    My lil ass will be there with my bro from Tallahassee...just booked hotel and plane tickets. see he just busted a 159.5 Shane? Like 5th in the USA (SS1-2)..hell yea! more free chit!

    • 0

      Reputation Points

    • 3 replies
    • 958 views

Who's Online (See full list)

  • There are no registered users currently online

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.