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SPL & SQ / Fabrication

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

  1. Started by billystorms24,

    Hey guys I have a question I bought 4 3 inch aeros to be tuned to 31 hz they are going to be 12.3 inches each will this sound good I'm using a saz 3000d witha cascade designs omega 18 itshould pound right thank to all who help

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    • 8 replies
    • 1.4k views
  2. Started by ANT LAY,

    I've heard of people blocking off the rear cabin vents ( behind the vent caps) to gain loudness in the cabin anyone here dine it or does anyone know if it works because with my system turned up if you walk to the back you can here a farting noise coming out and also you can feel the air coming out

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    • 6 replies
    • 1.4k views
  3. Started by Bryan Mckendry,

    I have a Fibl 15" firing upwards with a port on the side of my box. I was wondering what would make it louder in the cabin of my car? Port facing me or the rear? Don't know if this will help any but I have a 2010 malibu

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    • 3 replies
    • 1.4k views
  4. Started by teamsolo,

    i got a box that is 40x32x17 and trying to tune it to 32hz can someone help me find how big i need the port hole

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    • 8 replies
    • 1.4k views
  5. Hey guys i came up with a design i just want to know if i did this right let me know its 4.4 cubes not counting port area and its 40 hz can somebody double check this and confirm what i did was right thanks

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    • 6 replies
    • 1.4k views
  6. Started by Jshak07,

    Gettin ready to start on a new build. Will consist of: 15" Sundown Nightshade D2 Alphasonik 1000HCA (Possibly saz1500) All 1/0 Exide Orbital Deep Cycle Damplifier Pro will be installed on all doors and on hatch and on the floor from the back seats back. I have more for rest of truck but probably wont have time to get it all on at first. I want to be able to put up some good numbers on the TL so what kind of design you got for me? Should I do a slot port or aero? About what size box and tuned to what? Thanks 3 cu ft tuned to 36hz with 3 4" flares?

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    • 9 replies
    • 1.4k views
  7. Started by B7L|BL4Z3R,

    I was wondering if anyone would be able to make a sketchup for this box. and please correct me if my tuning is off. box is 4.33384 after sub displacement. W. 30 H. 20.5 D. 16 wood thickness .75 and the port being 32.5in long tuned to 32 hz with a kerfed radius of 3.

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    • 10 replies
    • 1.4k views
  8. Started by cjosisek90,

    Hey guys, I just finished my box. Was all excited, i did i dry build first. just screw it in before glueing. After I built the box I take it outside only to find it doesnt wanna go in my car. YES I did measure twice and cut once, but i failed to measure the clearing distance of my trunk to slide it in. Here is the plan I went by 4cuft. at 35Hz Is there any way I can sacrifice any depth when putting this in my car? Height: 17" Width: 39" Depth: 16.25" Thanks for the input and flaming, Curt

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    • 9 replies
    • 1.4k views
  9. Started by tburt915,

    currently running a sundown saz1500 powering a fully loaded 12in fi bl in a 2.5 cu ft box tuned to 34 hz. I was recently at a local audio shop and had the main guy set my gains properly so i did no have any clipping. I was not very impressed with the outcome. As i come to find i had been running with clipping since day one and my system is now quieter. He told me to tune my box to 40-42hz and it would be louder. My question is how much louder? and will i still be able to play most rap music? What would be the lowest tone i could safely play?

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    • 6 replies
    • 1.4k views
  10. I want to mount a Double DIN unit in my 1.5DIN dash opening. Yes, I know it is 1" taller, and I know I need to be doing some modifications. I can handle that. My problem is, the unit I want to use does not come with a cage. http://www.crutchfield.com/S-qehudI3MTzg/c...550&I=257AVX706 So, I need to fabricate a way of installing the Double DIN in the dash without use of a cage. Perhaps I can use an already existing kit... and mold it into my factory stereo trim piece. The whole bezel over the stereo and HVAC controls comes off. And use a kit like this one: http://www.scosche.com/scosche_caraudio.as...&ItemID=HA1566B Mold the kit right to the bezel, then slip it in…

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    • 9 replies
    • 1.4k views
  11. Hey guys I have a couple questions. I did a build on 2- SA-12" V.2 Nightshade and I had a custom box built that is 3.0 cf box w/ a port face that is 40x1.2" and is 23" long (specs I got from SA). The subs are firing up and the port is firing back at the bottom of the box. This roughly give me 48 inches of port tuned at 36 hrz, I heard from SA tech that I needed 15 inches of port for each SQ FT. It sounds great, the only problem is it doesn't sound as loud as my ProBox super bass box did. Any suggestions? I talked with SA tech again and they said raise the tuning frequency by cutting off a little off of the port. I checked with ProBox and the Super Bass Boxes are tuned at …

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    • 3 replies
    • 1.4k views
  12. Started by vice24,

    I found a formula that seems to work at http://www.caraudio911.com/ under designing a ported box. But I was wondering why on step four they say to subtract half the port width from the port lenght to get your physical port lenght? When I made my box I dont think that I did this so I may be building a new one if this is important. I was also wondering if this formula works or has been used by anyone here?

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    • 3 replies
    • 1.4k views
  13. Started by brent338,

    had today off, ran up to the shop... and did a 147.2. voltage drop was to about 11.5 or so, with just the optima of front, popped the 300A breaker. Kinetik 2400 came in yesterday, I really need to find somewhere to fit the damn thing in...

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    • 6 replies
    • 1.4k views
  14. Started by gearstix,

    I am wondering if the Mach 5 SPL-12s would be any good in a T-Line? I have been told they should be good, but the fs is sorta high. I am planning on doing this with my camper shell but with a different box... the box can run the length of my truck... I plan to make up some metal frame for the box to sit on inside the bed. Having the box above the floor will give me room for my air ride when that gets installed..

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    • 3 replies
    • 1.4k views
  15. Started by tjennemann,

    Here is some up front info Vehicle : Gravedigger Powerwheel Location in the vehicle: rear hatch, ported into front cab Space available (Length x Width x Height): Subwoofer make and model: SA-8 V1 Subwoofer Size: 8" Number of Subwoofers: 1 Type of Port (Kerfed, Slot, Aero, etc.): 3" pvc What type of music do you like?: just want a burp box. Is your goal SPL or Everyday Music?: Mid 160's SPL Tuning Freq (Hz): 37 give or take - Volume : .5 - 1.2 cubic feet of space available. the box pictured below is .62 Questions: Just joined the site. See this thread http://www.soundsolutionsaudio.com/forum/topic/60250-powerwheel-time/ Anyways started a new design for my sons Powerw…

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    • 2 replies
    • 1.4k views
  16. Started by billystorms24,

    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.

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    • 5 replies
    • 1.4k views
  17. Started by brian85578,

    Vehicle: toyota camry 1999 Location: trunk firing forward Space: 39w 14t 25d available Subs: 2 ssa gcon 10s Slot port Music : rap , rock Goal: everyday box Tuning : 33 hz ? Volume 2.5 to 3.0 cu. ft.? Amp: sundown 1200d I'm pretty good at making things out of wood just need a box design and cut sheet You can email me at [email protected]

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    • 14 replies
    • 1.4k 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?

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    • 10 replies
    • 1.4k views
  19. Thought I would post this little bit of theory that I discussed with Mattdog from Neons.org tonight. I would like to see if anyone has anything to add/discuss further? Typical 4ga stranded copper wire has approximately 0.000292/ft of resistance, so for a typical 20ft run of wire to the trunk, that equals 0.00564 ohms. Pretty much negilible, the fuse will have more resistance . A battery like the Optima Yellow Top runs approximately 0.0028 ohms of resistance. Battery resistance changes with temperature, but in the case of a gel-cell deep cycle, that battery temperature will be more stable than the typical lead-acid during use. Deep cycle batteries also have less resistanc…

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    • 3 replies
    • 1.4k views
  20. Started by mcbuggin,

    well I have seen this on ROE in some of the vids is there anyone who can hook me up with this for a comp comeing up at the end of this week would like to use it for steet beats and does anyone know what freq. it is at. thanks P.S. if this is in the wrong section sorry.

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    • 9 replies
    • 1.4k views
  21. Started by tccoble,

    I was wondering if anyone has ever seen a port like this? Is it even possible for this thing to opperate properly, it still sounds great, but I'm starting to think that its just the DCON making it sound good.

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    • 7 replies
    • 1.4k views
  22. Started by QuestionMan,

    I did search 'box carpet',and you'd be amazed (sarcasm) how much those two words are used on this forum. lol, i went through about 15 pages and found some good info on where to get it,but i still have one question. A lot of people said they got their carpet from a hobby store,and i'm just curious what kind of carpet to look for when i get there. I could be wrong, but i don't see them having "sub enclosure carpet", so i really just need a name to call it... If i can't find it at a hobby store, i guess partsexpress.com is the next choice ($5.85/yd... much better than crutchfield's $30 for 3yds.)

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    • 5 replies
    • 1.4k views
  23. Started by imsolost7886,

    Putting this into a grand caravan, middle seats up, backseat stowed. Going ported, thinking 30-33hz tuning wise, any recommendations? Going to run it off a Sundown 1500d, so box size recommendations? Also, will be running the stock alt for awhile (160 factory). Doing my big 3 upgrade with 1/0 and a single run of 1/0 for now....later upgrades will be wiring and alt before anything else...also no sound deadening for now...also looking for any recommendations for sub/port orientation? sub/port back towards hatch, sub up/ports toward hatch, sub up/port facing side....anyone with experience in a minivan would be nice, not that most of you have one, but a guy can hope lol. than…

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    • 8 replies
    • 1.4k views
  24. Started by k_schutte,

    picked up a pair of 12" iCons and this is the box I plan to build. I was wondering what you guys think. This is the first time I have run anything other than a single 15" or a single 18" so I want ot get opinions before I build it. 4.8ft^3 net air space (5.12ft^3 gross .16ft^3 displacement per sub) tuning 32hz-33hz 72.5in^2 port area

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    • 8 replies
    • 1.4k views
  25. Started by SKEEMASK,

    Ordering a AudioControl DQXS digital processor sometime in the near future. All the speakers I have are in my sig. I need suggestions on where to place these bad boys. Two 6.5"s are going into the bottom of each door. for the 4s and tweets do u fellas suggest I do 1. midrange/tweets in doors and a-pillars. 2. doors and kicks 3. kicks and A-pillars note: each 4 will have a tweet right beside it, so it wont be off axis

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    • 8 replies
    • 1.4k views

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