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l-150

  1. DJ5D

    JBL L150 Sub Bass Mystery

    Hi, I'm restoring some JBL L150s and I've run into a mystery. I refoamed all the speakers successfully, but then I noticed that the sub bass response was extremely poor in one of the cabinets. A 40Hz test tone revealed that the passive radiator was putting out almost nothing. (note: i did not...
    • DJ5D
    • Thread
    • jbl l-150 l150 speakers sub sub bass
    • Replies: 15
    • Forum: Speakers
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