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Thread: 123a-1 scrape test

  1. #1
    Senior Member bob newton's Avatar
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    123a-1 scrape test

    Anyone ever hear of a scrape test for the 123a-1 driver? If so, how is it done?

  2. #2
    Administrator Robh3606's Avatar
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    OK

    I'll bite

    A scrape test???? As in Voice Coil rub?? Just run a sign sweep and don't try moving the cones by hand to check. Very tight in that gap.

    Rob

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    Senior Member bob newton's Avatar
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    I'll bite

    OK, and then what? do I listen for something or look for something?



    Can you give more information?

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    Administrator Robh3606's Avatar
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    OK

    Let's start over. Why are you asking about this?? A sine sweep will tell you if you have a missaligned voice coil. You will hear a rather distinctive buzzzzz usually at a particular frequency range but sometimes all the time when you do the sweep.

    Rob

  5. #5
    Senior Member bob newton's Avatar
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    Why are you asking about this

    OK Rob, I got you now! I understand fully. I am asking because, although I am quite familiar with electronics, I do not know it all when it comes to speakers! If I did, I wouldn't need guys like you ! THANKS ROB.

  6. #6
    Administrator Robh3606's Avatar
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    Your welcome

    Rob

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