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Message: <blockquote data-quote="JasonK94Z" data-source="post: 7887428" data-attributes="member: 643922"><p>Whenever my subs cone has alot of excursion, I'm getting a slap or a tapping sound from the cone.  It is a Powerbass L-104D in a sealed enclosure with an Alpine MRX-M50 amp running it.  Also using a AudioControl LC2i LOC.  Gain is half way up (nom), LP is set a hair below 80 Hz, subsonic at 25 Hz.  Sometimes I find myself wanting more, so I try to turn the sub up more using the remote gain control knob.  Anytime there is a kick drum or something sharp like that, the cone taps.  Annoying.  Definitely happening during big excursions.  May be time to try another sub in that box.  Its a custom sealed fiberglass enclosure under the back seat in my dodge ram quad cab.  Approx .70 cu ft.</p></blockquote><p></p>

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