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The Sony XS-4623 uses a 4 X 6 Polypropylene Cone, a durable plastic-based material which exhibits lo
The Sony XS-4623 uses a 4 X 6 Polypropylene Cone, a durable plastic-based material which exhibits low mass for good transient response, rigid structural integrity for low distortion, and high internal loss for accurate sound reproduction without excessive "ringing". Withstands the extremes of the autosound environment well.
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