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 luvofmusic,

    Powerbass xs15dv2 4.834gross volume 3.997net volume 63.375 sq inches of port (3h x 21.125w) 22.854 port lenght tuned to 38hz powered by orion 1200d @ 1ohm Are my calculations correct? If so do you think that is enough port area? 4.834gross 4.459net 42.245 sq inches of port (2h x 21.125w) 15.344 porth lenght tuned to 35hz Which one would you chose?

    • 0

      Reputation Points

    • 3 replies
    • 1.1k views
  2. Started by smagistro,

    Looking to get max spl in a trailbaler on a cadence a7hc. 1200 watts 1 ohm. I would like bass on all types of music. I have a 4" aero port laying around that i could use. Shoot me some ideas.

    • 1

      Reputation Points

    • 7 replies
    • 1.1k views
  3. Hello all! I am looking to reconfigure my trunk set-up in my Mazda 3 and am looking for some feedback on my idea to see if this would give me my desired result. Currently, I have the subwoofer firing straight to the back of the car, with the port opened up to the rear deck ( I use a flared round port). The problem is that the rear deck is completely solid and this causes quite a bit of rattling, even after deadening the whole trunk. What I am considering doing is rebuilding the box to have the sub firing straight to the back of the car, with the port opened up on the back of the box. In order to do this, I would need to put an elbow on the PVC port because the box will…

    • 0

      Reputation Points

    • 3 replies
    • 1.1k views
  4. I am currently taking advantage of the Audibel Customs free enclosure special and getting myself an SSA Icon 12". I am going to be going with a ported enclosure, and Quentin is currently working on my design. the first design he had was with the sub on an angle, firing towards the hatch, and port firing out the top. I had envisioned a upward firing sub and port, and a raised sub floor in the back to make it all flush. Now I realize that the box is just going to be so big regardless that the sub floor idea went out the window. I am only concerned with it hitting hard, going deep, and being able to keep up with my tastes in music. I drive a '05 Scion Xa, 160 amp alt, 0g …

    • 0

      Reputation Points

    • 2 replies
    • 1.1k views
  5. Started by bolo88,

    What size enclosure would best suit a 15 L7 for spl and tuned to what frequency

    • 0

      Reputation Points

    • 10 replies
    • 1.1k views
  6. Started by zyskatr,

    Im new to building enclosures and would like to know the correct type/brand of screws and glue that i should be using. Thanks for the help!

    • 0

      Reputation Points

    • 10 replies
    • 1.1k views
  7. Started by tezin87,

    I'm going to build a truck-style enclosure for a Fi Bl10 with a 3'' aero. Dimensions are w: 38 h: 12 d1: 6 d2:8 This is 1.217ft^3 internally. After the bl10 displacement it comes out to roughly 1.1ft^3. When determining the port length, online calculators asks for: Volume of Box in Cubic Feet Tuning frequency Port diameter Number of Ports I want to end up with a tuning of somewhere around 33-35hz, depending on how long of a port will fit in my box. So...... Do I put …

    • 0

      Reputation Points

    • 3 replies
    • 1.1k views
  8. Started by JazzScreamer,

    I have a friend that wants a box built for a 8" sub. I have some 1/2" MDF that I could make it out of. The box will be sealed and not have a lot of flat surface (maybe even some glassing involved to make it fit). Would this be a good idea? I'm not sure about the thickness of the MDF. The sub will only be seeing about 200rms or so.

    • 0

      Reputation Points

    • 7 replies
    • 1.1k views
  9. Started by XTRMEASURES,

    im makeing this post for ppl trying to use fiberglass on there install's. this will help you understand how and what to use to make the job easyer. i will have more later and hopefully have a step by step so you can see it at work.... so here we go... the material's you might see is fiberglass this came's in many form's such as chop mat, cloth, fleece, speaker grill cloth and speaker carpet. next is the resin again came's in many form's, polyester and epoxy. these are the most used in the car audio world. other thing's you'll see is PVA, mold wax, MDF, bondo ect ect.... (and a few time's steel mesh, but i never used it.) ok now im goin to talk about resin. the resin we mo…

    • 0

      Reputation Points

    • 3 replies
    • 1.1k views
  10. Started by Maggotpuffin,

    I have 1 06 Kicker L715 in a ported box in a 2004 Isuzu Rodeo. Im gonna build a new box first the measurments are Build the enclosure to internally measure 5.0 cubic feet. Use a port opening that measures 50 square inches (3" X 16") and a port length that measures 15" deep into the enclosure. Im looking for a little sq but mostly spl. Its goona be tuned to 33hz. Is that good for what im looking for. My amp is a KX1200.1 and its wired down to 1 ohm. Thanks for any input

    • 0

      Reputation Points

    • 10 replies
    • 1.1k views
  11. When you build a box with a swapable port, how to you determine internal box volume, as in, what it needs to be once the port is in? I'm going to build a box for the BTL that's 7.5 cubes and want three different ports, 26hz, 34hz, and one for whatever my peak frequency in the vehicle with be. I'm not sure, but wouldn't the different port sizes also affect tuning by changing box volume? I feel like this is really simple and i'm just punching myself in the face here. What am I missing?

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  12. Started by bobby_7,

    looking to buy a saw blade for my circular saw to cut my MDF. i was going to have lowes cut it, but i can't quit worrying that they will mess it up so im going to do it myself. i have been told to get at least a 40 tooth carbide tip blade....i am only going to use this thing once so i dont want to put a lot of money into it. i was thinking getting a higher tooth count blade, just not carbide tipped. i was thinking like a 120/150 tooth blade....would that work well? is the carbide tipped that big of a deal?

    • 0

      Reputation Points

    • 11 replies
    • 1.1k views
  13. Started by imhungnurnot,

    First off, can I count on port end correction to lower the tuning freq of my enclosure? For example, NET Vol. = 2.6 cuft. or 4493 cuin. Port: 12.5" wide x 3.375" high X 24" long without end correction, (port length = 24") tuning = 38.58Hz with end correction, (port length = 25.6875") tuning = 37.52Hz I know 1Hz difference in tuning isn't really audible (but the end correction factor will differ in different situations i.e. port height, etc), but I want to know if the end correction factor actually exists!!!! Secondly, I'm about to build a box for one DD 9512g. DD recommends 42 in^2 port area with 22 port length with 2.6 cuft NET vol. which yields 39.97 Hz tuning …

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  14. Started by damonhargroves07,

    i have a 1997 mercury mountaineer with 2 fi q18's DRUMMING~! they are powered by a t20001bd rockford. i am losing so much pressure out of the back glass do to flexing. do they make clamps for the back hatch to hold it down? its a daily box in now and will future be a crx style spl box. i currently have a 12 cube crx style box with 120 sq. inch of port. thanks for any and all help! Damon

    • 0

      Reputation Points

    • 9 replies
    • 1.1k views
  15. Started by loud lincoln,

    i want to wall my lincoln but first i need to make sure i wont get a ticket if i do have a wall. any one who knows about that kind of stuff any help would be good.thanks in advance

    • 0

      Reputation Points

    • 5 replies
    • 1.1k views
  16. Started by 1nigger,

    i have a 92 s10 blazer and i want to put a single 15" sundown d2 and i want to build a spl box but i will use this as a daily driver does anyone have blueprints or pics of any boxes for this setup?

    • 0

      Reputation Points

    • 14 replies
    • 1.1k views
  17. Started by Chapter2,

    if your going see you there,,,cars still not ready but im taking it out anyway

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  18. Started by SPL_Man,

    can a fully loaded BTL 18" take for SPL burps ? provided with of course the proper ho alt & batteries need some info for planning a set for comp use

    • 0

      Reputation Points

    • 11 replies
    • 1.1k views
  19. Started by Hell-Razor,

    I have talked with rob and rusty from dc on everything to do with my upcoming design for summer 2012. I am going to go with 2 xl 12s on two SAZ-3500Ds, backed up with juicebox batteries and a 220amp excessive amperage alt. The box will be a little smaller than recommended seeing as DCs love smaller boxes when they are overpowered. Now my question for everybody that I cant seem to get a hold of is port area, would I be better off giving it a little more (Kerf port btw) space (say 18-20sqin per cuft) or the "normal" range of 15-18sqiin per cuft? My goal is to get decent numbers in the low 30s. I do not have the depth either for aeroports. A 5" aero though would be 21 sqin p…

    • 1

      Reputation Points

    • 2 replies
    • 1.1k views
  20. Started by Heathd,

    All my experience in audio comes with sealed enclosures, even so, after having visited this site, I feel like my past work was rather half assed and mindless. This is what I have so far: I am planning on using two soundsplinter rli10s, and I could be perfectly content with keep it sealed, but I want to try my hand at porting and perhaps learn something new. I have been trying to talk to a few people about porting this enclosure, but I am not really getting any good information, and I am also reluctant to trust any information from WinISD. From what I understand, that program can be slightly flawed. My box is 1.08 cubic feet after all displacements are taken into account…

    • 0

      Reputation Points

    • 8 replies
    • 1.1k views
    • 1 follower
  21. Started by bristabrock,

    so my friend tried to paint the box he made for his girlfriends jeep black, but where the screws are its all messed up, and the paint is dark and light in some places and fades alot and doesnt look that appealing all together, i figure i could just use woodfiller for the spots for the screws and sand it down flat, but what about getting all the paint even and pretty? need to make one for a guy i know and he wants it painted so anything will help, thanks

    • 0

      Reputation Points

    • 6 replies
    • 1.1k views
  22. Started by logan_searching,

    Ok so Im putting 2 12" xcons in the trunk of my grand prix gxp max dimensions are 35"W opens to 55"W 15"H 40"D. I want it ported what do you guys think would be the best box type of port which direction and so on I wont be building it but I also want the best and the builder Im using can do it. It is not a comp car however I play my music loud everyday and I want to be heard

    • 0

      Reputation Points

    • 8 replies
    • 1.1k views
  23. Started by mile098,

    ok, i'm gonna risk one hell of a flamming here and ask you guys. i was nomeened R-tard of the month on CA.com for saying this so chances are it's gonna happen here too, but what the hell K my question is can you guys hear the difference between a 4 ohm and 1 ohm load? now im not talking about sitting in someone else's car and knowing it, but if you have a 2x2 sub and wiring it to 1 and 4 ohm load. i have tried it with a two different amps(a 2 channel in 2 ohm bridge) and my current RF bd 1000.1. although on a 1 ohm load and lower it ponds like a bastard it just sounds too off, sort of muddy... this all applies if the amp is stable on those loads of course just curious...

    • 0

      Reputation Points

    • 9 replies
    • 1.1k views
  24. Started by WildSebring,

    Went out to a Texas Bass Productions event today with the Sebring wit 1 12" Soundstream SPLX Quad 1 ohm.. All 3 runs it did a 151.3 Got 1st place in my class(no one was close to me). Brian(Lord Baccus) did a 151.2 with a set of bad RCA's with a Pierce Audio Products 1 off(specially made for him) 15" MOAB subwoofer, ...sorry bout that Brian..we'll et em' next time! Every ones asking about the Sundown Audio amps that me and Brian are kicking butt with....most people haven't heard of them...they are getting a ton of attention... Hoping to get higher on this single 12"...

    • 0

      Reputation Points

    • 8 replies
    • 1.1k views
  25. I know I've seen plenty of people use spray/roll on bed linings for the outside of their enclosures and such. I am wondering two things though, was it applied to the bare MDF or with a primer on the MDF first and how well is it holding up after "x" amount of time? I'm about to start on the enclosure and amp rack for my Jimmy. I had planned to paint the port to match the truck and use standard charcoal colored cabinet carpet to cover the box and amp rack with. Though upon thinking about possible liquid damage to the MDF on the floor/amp rack I'll be building I thought perhaps the liquid bed liner may be the better route. I have no experience with it though so I was ho…

    • 0

      Reputation Points

    • 6 replies
    • 1.1k 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.