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MythBusters - Shattering Subwoofer
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<blockquote data-quote="GordonW" data-source="post: 1964901" data-attributes="member: 568981"><p>Read what they said about power compression. I work on pro drivers (reconing), so I see what kind of motor systems they use. I also work on car audio drivers... and comparing the typical motor systems, the car audio drivers will power-compress just as fast as the pro drivers.</p><p></p><p>6 dB of power compression is NOT uncommon. JBL has done some white-paper research on this... it's on the jblpro.com site, IIRC...</p><p></p><p>The point of the servo system, is that it's efficient enough that you DON'T have to use NEARLY as much power... so power compression (heat) isn't an issue...</p><p></p><p>And BTW: 10 meters gives 20dB of loss... not 10 dB. Inverse square law. Unless it's a line-array, it's not linear, it's to the square of distance....</p><p></p><p>Regards,</p><p></p><p>Gordon.</p></blockquote><p></p>
[QUOTE="GordonW, post: 1964901, member: 568981"] Read what they said about power compression. I work on pro drivers (reconing), so I see what kind of motor systems they use. I also work on car audio drivers... and comparing the typical motor systems, the car audio drivers will power-compress just as fast as the pro drivers. 6 dB of power compression is NOT uncommon. JBL has done some white-paper research on this... it's on the jblpro.com site, IIRC... The point of the servo system, is that it's efficient enough that you DON'T have to use NEARLY as much power... so power compression (heat) isn't an issue... And BTW: 10 meters gives 20dB of loss... not 10 dB. Inverse square law. Unless it's a line-array, it's not linear, it's to the square of distance.... Regards, Gordon. [/QUOTE]
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