Holy Moly!....bpd 1003 Pics!!!

Discussion in 'Archived Threads 2001-2004' started by Anthony_Gomez, Jun 5, 2002.

  1. Pete Mazz

    Pete Mazz Supporting Actor

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    Is there any radiating surface left with the size of that surround!!!

    Pete
     
  2. Brian Bunge

    Brian Bunge Producer

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    Only two applications come to mind for that thing! Car audio and Linkwitz Transform!

    Brian
     
  3. you read my mind! TL baby!
     
  4. Brian Bunge

    Brian Bunge Producer

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    You mean LT, right? I guess PR's could be used too.

    Brian
     
  5. Jeffrey Noel

    Jeffrey Noel Screenwriter

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    Holy crap! That looks like one helluva killer sub!
    Anthony, are the specs out for the sub? And is there a price listed?
    Pardon my lack of knowledge, but what exactly is Linkwitz Transform? [​IMG]
     
  6. oops...ya a LT.
    I am sure you could use it in a PR box with opposed 12"ers
    Jeffery, a LT is an active piece of circuitry that electronically boosts your speakers responce to give it any Fb and Qtc you could want. (a lot better than an EQ) Go to www.linkwitzlab.com formore info. THe trade off is (btw, it is for a sealed enclosure only) that you need lots of x-max (which this driver has) and lots of power (like 1kw)
     
  7. Rudy H

    Rudy H Stunt Coordinator

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    Anthony, you still can't change the driver natural Qtc-in-a-box, though you obviously can flatten the FR peak around it. You also can't flatten the transient response bump that will occure, but hopefully it'll be high enough so that's avoided during normal use [​IMG]
     
  8. The best thing for people to do is just play around with the LT program on the FRC consortium....plots show all the stuff you need to know=)
     
  9. Ron D Core

    Ron D Core Stunt Coordinator

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    Damn I would love to impress my friends with a couple of those and 1100 watts in the trunk of my car. I'm thinking 145db at 45 hz.
     
  10. Patrick Sun

    Patrick Sun Moderator
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    That's my concern: Lack of Vd with such a large surround.

    There's no replacement for displacement.
     
  11. Cam S

    Cam S Screenwriter

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    WOW, that thing is sweet looking, looks so much like the Sunfire subs. It looks kinda funny with the dust cap like that, they should have made it concave in shape, going in, instead of out.
     
  12. Greg Yeatts

    Greg Yeatts Second Unit

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    Rudy H

    The linkwitz transform will change the Q of the system in a box. If you download the LT spreadsheet it is explained that to find the value of the electrical components you input certain woofer and box characteristics and then the F3 and system Q desired. Then the components are calculated. The LT is a great idea. But it does require a lot of Xmax and power.
     
  13. Bill_BPD

    Bill_BPD Auditioning

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    Cam S

    We cant, the VC former comes out pretty far. (durable VC? Oh yeaaa!)

    Thanks,
    Billy bpd
     
  14. Bill_BPD

    Bill_BPD Auditioning

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    You prolly want these [​IMG]
    1003
    Re 3.6
    Fs 29.7
    Qms 6.62
    Qes .27
    Qts .26
    Mms 197 g
    Sd 310 cm^2
    Vas 19.55
    SPL 85.2 dB
    Xmax 51.7 mm p-p to be verified by Dumax
    Power 1000 Watts
     
  15. Bill_BPD

    Bill_BPD Auditioning

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    The one in the pic is currently in my car taking a rather obnoxious beating. Its odd how much cabin gain occurs, In the plot I should be getting a -3 of 90hz and a -6 of 65hz, but it doesnt sound bad. (sealed, If only I could get a bfd in my car)
     
  16. Rudy H

    Rudy H Stunt Coordinator

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  17. Cam S

    Cam S Screenwriter

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    Bill, what are you powering that sub in your car with??

    Also, does the dust cap shape effect performance in any way???
     
  18. Jack Gilvey

    Jack Gilvey Producer

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