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Thread: Great Plains Audio Diaphragm Question

  1. #1
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    Great Plains Audio Diaphragm Question

    I have a pair of Altec 806A drivers and thinking long term I am considering purchasing a spare set of diaphragms. Great Plains offers a 8 ohm and 16 ohm replacement diaphragm but they are not specific to the 806A or 806-8B. It seems they offer a one-size-fits-all product, which is understandable.

    So with the GPA diaphragms, will all of the listed drivers perform the same?

    Part # 34647 Diaphragm original GPA for 604/802/804/806/808/902/909/605 -8 ohms


    Part # 34852, Diaphragm original GPA for
    604/802/804/806/808/902/909/605 -16 ohms





  2. #2
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    I can’t give you an answer across the board. But, I will say that I got a pair of 902’s from them and they got attached to my 811B in a pair of Valencia’s with fantastic results compared to the OEM 806.

  3. #3
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    Quote Originally Posted by Chas View Post
    I can’t give you an answer across the board. But, I will say that I got a pair of 902’s from them and they got attached to my 811B in a pair of Valencia’s with fantastic results compared to the OEM 806.
    I don't see that they offer complete drivers on their website, only replacement diaphragms. How long ago did you purchase it?

  4. #4
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    It looks like they’re having major tech problems with the website. The drivers don’t show up for me either.
    I would suggest you give Them a call, ask for Bill.

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