LOUDSPEAKER SYSTEM WITH IMPROVED SOUND
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United States of America Patent
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app pub date -
Aug 23, 2011
filing date -
Aug 23, 2010
priority date (Note) -
Abandoned
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Abstract
A loudspeaker device (200) is presented which includes a zeolite material (100) comprising zeolite particles (102) having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
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