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Car Audio Equipment
Subwoofers
Soft parts make subs take more power.
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<blockquote data-quote="sundownz" data-source="post: 7075842" data-attributes="member: 549523"><p>While I'm here... I see alot of folks talking about sensitivity and/or MMS as THE spec for SPL woofers. They are not in and of themselves... Sensitivity depends on two specifications for the most part -- motor force factor AND mass.</p><p></p><p>What is really important here is the ratio of the two... for example if I have a driver with a BL^2/RE of 108 and an MMS of 223 grams the sensitivity is 85.5 dB -- if I take that driver a put a heavier cone on it but also make the magnet enormous for a BL^2/RE of 198 but with a resultant MMS of 301 grams to keep sensitivity at 85.5 dB... which do you think will be louder ? Based on our testing the latter driver will be around a full dB louder -- with an identical sensitivity.</p></blockquote><p></p>
[QUOTE="sundownz, post: 7075842, member: 549523"] While I'm here... I see alot of folks talking about sensitivity and/or MMS as THE spec for SPL woofers. They are not in and of themselves... Sensitivity depends on two specifications for the most part -- motor force factor AND mass. What is really important here is the ratio of the two... for example if I have a driver with a BL^2/RE of 108 and an MMS of 223 grams the sensitivity is 85.5 dB -- if I take that driver a put a heavier cone on it but also make the magnet enormous for a BL^2/RE of 198 but with a resultant MMS of 301 grams to keep sensitivity at 85.5 dB... which do you think will be louder ? Based on our testing the latter driver will be around a full dB louder -- with an identical sensitivity. [/QUOTE]
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Soft parts make subs take more power.
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