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Car Audio Equipment
Speakers
Pumping sound by moving cone
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<blockquote data-quote="XxAndreaxX" data-source="post: 8500779" data-attributes="member: 669406"><p>hi, one quick question, when I move the cone of my sealed sub by hand, I can hear some pumping sound, like fffffff ffffff. is that normal? the sub should be totally sealed, but it might be not, due I can clearly hear some air moving sound during reproducction like bzzzzz bzzzzz, even at 20% of total volume (that's really annoying). I'm not shure if that sound is normal excursion sound, or if there's some air coming out somewhere. tried to seal every possible hole with some vinyl glue, even the contour of the speaker itself, and by hand, I can't distinguish if at the cone region, there's still air coming out, or its the excursion of the cone itself generating air movement.</p><p></p><p>thanks for the imput.</p></blockquote><p></p>
[QUOTE="XxAndreaxX, post: 8500779, member: 669406"] hi, one quick question, when I move the cone of my sealed sub by hand, I can hear some pumping sound, like fffffff ffffff. is that normal? the sub should be totally sealed, but it might be not, due I can clearly hear some air moving sound during reproducction like bzzzzz bzzzzz, even at 20% of total volume (that's really annoying). I'm not shure if that sound is normal excursion sound, or if there's some air coming out somewhere. tried to seal every possible hole with some vinyl glue, even the contour of the speaker itself, and by hand, I can't distinguish if at the cone region, there's still air coming out, or its the excursion of the cone itself generating air movement. thanks for the imput. [/QUOTE]
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Pumping sound by moving cone
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