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Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
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Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
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New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
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Development of a New Loudspeaker System Having Extended Frequency Range and Low Distortion Particularly at Low Frequencies and High Power Levels

A new woofer was designed to have a voice coil with two windings which are driven in parallel at low frequencies only in order to extend the low frequency range. A magnetic circuit with a new structure significantly improves the amplitude linearity at high power levels and low frequencies which produce large displacements resulting from the enhanced low frequency performance.

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