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15 or apr15

  1. New member needs help Lab 15/APR15 sub

    DIY Subwoofers - General Discussion
    Hello all. First post on this forum. I'm considering building a 3cf internal sub using the Eminence Lab 15 and two APR 15's with a Behringer XLS 1500 amp. This is for a friend who is trying to go to about 13Hz for a research project he's working on. Question, how many washers/weights would...
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