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Car Audio Equipment
Subwoofers
More efficient subs=more spl?
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<blockquote data-quote="shackles" data-source="post: 7883102" data-attributes="member: 643897"><p>Like some of the guys have said, there's more to it then just the specification db@1W@1m which is ideal.</p><p></p><p>A 3db change is just audible by human hearing so yes the 90db would be just slightly louder than the 86.5db speaker with 1watt input. With everything being equal the difference is that the 86.5db unit would need 2 watts to get it to just under 90db. And it gets more fun from there because the power requirement keeps doubling for each 3db increase until you reach it's maximum heat/power dissipation capacity which will be the max. input power spec.</p><p></p><p>The 86.5db unit will need 128 watts to reach 107db. The 90db unit only needs 64 watts to be at 107db. So assuming for instance they can both take 500 watts max. the 90db unit theoretically could produce 116db whereas the 86.5db unit could only produce 113db. Not super important unless you are only concerned about maximum spl's.</p><p></p><p>This is not really the most important factor when compared to box design, tuning and driver quality/durability when you want HQ sound and loudness.</p></blockquote><p></p>
[QUOTE="shackles, post: 7883102, member: 643897"] Like some of the guys have said, there's more to it then just the specification db@1W@1m which is ideal. A 3db change is just audible by human hearing so yes the 90db would be just slightly louder than the 86.5db speaker with 1watt input. With everything being equal the difference is that the 86.5db unit would need 2 watts to get it to just under 90db. And it gets more fun from there because the power requirement keeps doubling for each 3db increase until you reach it's maximum heat/power dissipation capacity which will be the max. input power spec. The 86.5db unit will need 128 watts to reach 107db. The 90db unit only needs 64 watts to be at 107db. So assuming for instance they can both take 500 watts max. the 90db unit theoretically could produce 116db whereas the 86.5db unit could only produce 113db. Not super important unless you are only concerned about maximum spl's. This is not really the most important factor when compared to box design, tuning and driver quality/durability when you want HQ sound and loudness. [/QUOTE]
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More efficient subs=more spl?
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