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Midwest Audio Fest

It’s that time audio enthusiasts! Registration for the 2019 Speaker Design Competition is now open! Visit midwestaudiofest.com for details and to list your speaker project. We are excited to see all returning participants, and look forward to meeting some new designers this year, as well! Be sure your plans include a visit to the Parts Express Tent Sale for the lowest prices of the year, and the Audio Swap Meet where you can buy and trade with other audio fans. We hope to see you this summer! Vivian and Jill
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Vintage Bluetooth speaker

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  • dink
    started a topic Vintage Bluetooth speaker

    Vintage Bluetooth speaker


  • Bear2112
    replied
    Very cool

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  • kenrhodes
    replied
    You could experiment with placing a tube around the speaker separating the front and back waves. Not ideal but it should help them function like an H frame.

    Leave a comment:


  • Chris Roemer
    replied
    YES, ANYkind of thin (non-buzzing) baffle will reward you with bass. You're basically running these not only "open baffle", but, actually w/NO baffle. The main result being in nearly total cancellation of any bass frequencies. Even a 10" or 12" sub can't really produce any bass if it's not at least mounted to a baffle board (to stop the "destructive" back wave (from the rear of the cone) from wrapping around the frame to the front of the woofer - cancelling the bass).

    Leave a comment:


  • randyohoh
    replied
    Very, very cool "out of the box" project.

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  • Millstonemike
    replied
    IIRC there's a quirk where dead batteries wont charge unless the AC power is cut then restored. Not sure which position the on-off switch should be in to restore charging during the power cycle.

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  • Shonver
    replied
    It looks fantastic! Love those lenses.
    I would change only one thing: that is, to install a ~4mm plywood baffle behind the grille if possible.

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  • dink
    replied

    Leave a comment:


  • ceiol
    replied
    looks great!

    the KAB boards have a few quirks:
    -the wired "on-off" switch is not really to cut power
    -it's wired in reverse (ie, with the switch closed, it goes into standby mode, with the switch open it powers up)
    -if you unplug the AC line input, it will just slowly drain the battery and not shut off

    my guess is that you're running on batteries and your batteries have no charge. where's the green LED?

    Leave a comment:

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