subs noise

  1. J

    sub makes grinding noise, ONLY when wired up. POWER OFF

    i just got a new set of sundown sa-12's 600w rms dvc i believe they were 100% fine no noises (i thought), my budy had been using they for a bit before this about not a problem took them out of the box to invert them, because the box's airspace was quite a bit small (was tuned in box freq. was...