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berniebp87

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Posts posted by berniebp87

  1. Doing a wall setup usually require more volume (up to 50% larger than suggested box volume), the woofers need some air to get really loud. Example: The first box I made for my DD Z9518`s barely broke a 150 (okey, non walled and too little box volume) Then when I made the "real" one with a wall with about 30% larger than suggested volume it did 154.5, and it did 150+ from 23-60hz. The most common mistake people do is making too small enclosures for the woofers. Some times it`s not about surface area, but volume ;)

  2. I`m giving away my box design I made some time ago for my "mini" woofers.

    This box was designed for 2 DD 1508`s in a stationwagon, but I think it would work great with Sundown 8"s as well. I`ve tested it some other cars and were loud in every one of them (not testet in trunk cars though)

    But if you want a good box for your DD`s or similar woofer, I think this box will suit you well. Tuned to ~35hz.

    The sketchup does not show kerfs, but you get the idea.

    DD15082.jpg

    DD150821.jpg

    Legal score

    11062010744.jpg

    In the kick

    12062010747.jpg

    Port score :D

    12062010748.jpg

    The box

    29042010624.jpg

    Hope you`ll enjoy it!

  3. http://www.stevemeadedesigns.com/board/topic/30135-bigpimpin91s-chopped-and-screwed-collection/page__hl__Big%20pimpins__fromsearch__1

    I think it's in his download. Either Pink Floyd or Phil Collins. Both get down. Use google and search Phil Collins bass remix or something and find skink to SMD and you should find it. I have it but I'm on my computer so can't send it

    Could you send it to me when you can? I`m gonna shoot some vids tomorrow and would love to have that in there :)

  4. There is a version on the forums somewhere I do believe by bigpimpin. One thing decaf posted about the version on here though is it's made out if pure sine waves which means it's similar to burping your system which isn't good for a 3-5 minute song. The version Tommy has is custom by a dj and very very few have the original. It's not chopped or screwed just bass added

    Okey, think I need to edit my title. It`s a slowed and bass added version of the "in the air tonight" song right? I tried to do it myself with audacity but it had a lot of clipping and I didn`t get it low enough. And I don`t have the patience right now to learn how to use it so I will rather have someone with experience to do it :)

  5. Ok Are you asking for it to be Chopped and screwed? or bass boosted.

    I thought that Tommy's was custom made for him.

    If you are looking for his bass boosted version then i'm not sure of where you are gonna find it.

    As far as screwed and chopped goes....

    You might like it... you might not...

    Free of charge...

    http://www.zshare.net/audio/80451312e78fb29d/

    Thanks man, but not quite the one I`m looking for, but I appriciate your help :)

    I dun think you can play that low. :shok:

    lol jk. Have you tried Bigpimpen91's version?

    As long as it`s not under 20hz it`s OK, it falls on it`s ass below that, lol ;) But no, I`ve tried to get in touch with him but I think his inbox is full or something.

  6. Calculating the tuning is somewhat a challange with clamshells. The clam angles themself act like what I would call 'phantom port length' it will have an effect on the end tuning. Without running your numbers If your going for 35Hz tuning then thats a good one. Frankies was tuned around 30Hz about the same as mine.

    Are you getting a good deal on those drivers? Holla at me, we can work something out ;)

    Edit: noticed you got them already. Good luck!

    You got mail you tease, lol ;)

  7. Clamshells don't model like a normal ported box, everyone trying to apply ported box tuning equations to them can just give up now.

    Ported clams model closer to a T-Line, Tapped Horn (which is essentially what a lot of them are) or even a series tuned 6th order depending how restrictive the mouth is.

    Yes, funky quarter wave shit. There you go, I said it.

    what kind of program should i use to get the right results then?

  8. I'd tune much lower if you want to play ANY music.

    I'd tune to about 34-36ish if you dont listen to any low music. Also the physical port length is not 6.6" its actually about 31.6" but because the opening is bigger then the back port if you calculate the tunning with the actual" port width you'll be lower then it actually is.

    try calculating the the tunning with the height of the port being about 11"H instead of 7.8"

    and make the length 31.6" that should change your results on the calculator drastically, and it shouldn't be to far off from your true tunning

    I have NO intensions of having a 50hz tuning frequenzy, lol :D I`m aiming for a 35ish tuning frequenzy, I shall try that and see what the calculator says. I`m trying to replicate what Frankie Rio did in his lexus, hoping it will produce decent pressure in the car :D

    Edit: Got a 38hz tuning now (and 7cubes of port volume, lol), that`s more like it :D

  9. So I`ve been thinking about doing a clamshell for a while now, the subs I`m most likely gonna use is (12) 12" Hertz Show SPL 2x2ohm and 3 dynabel BF8501 (5000watts each). I got about 14 cubes of net volume, according to Torres calculator the tuning frequenzy is 49.9hz, but I don`t know how long the actual port length is (where it ends) I just put the length of the plate behind the baffles. Couldn`t find the recomended box volume of the subs on their site, but here is the link:

    http://www.hertzaudiovideo.com/Doc/hertz_SX300D_tech.pdf

    Here are some pics of what I`ve sketched up, does it look OK? (even made the measurements in inches just for ya`ll lol) ;)

    Theclamshell6.jpg

    Theclamshell5.jpg

    Theclamshell4.jpg

    Theclamshell.jpg

    Theclamshell2.jpg

    I am willing to pay someone for the job if I think youre qualified.

    Edit: the wall thickness is about 2.5 inches.

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