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DS18 Hooligan 12" v1
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<blockquote data-quote="hispls" data-source="post: 8636722" data-attributes="member: 614752"><p>Sine waves again would be honest, though again the JL method is really handy. There is no reason to suspect there's not some program material out there that isn't close to solid sine waves in other frequency ranges.</p><p></p><p><a href="http://www.jlaudio.com/header/Support/Tutorials/Subwoofer+Power+Chart/Subwoofer+Power+Chart/466834" target="_blank">JL Audio » header » Support » Tutorials » Subwoofer Power Chart</a></p><p></p><p>The idea being if you give retard proof ratings you KNOW that anything that comes back broken was done by abuse (unless you see some obvious sign of legit manufacturing defect). People who know what they're doing can try to throw more power at things but they will understand that they're on their own and it is abuse, novices can have a better idea of what is safe.... saves a lot of hard feelings later.</p><p></p><p>Naught for nothing but pushing things into thermal or mechanical compression isn't really efficient anyway, you get even worse diminishing returns for throwing more power at it. Consider how a speaker cooling works. A 3" 4 layer copper coil can typically hang with 1200W 50hz sine wave. If it'll hold that for an hour it'll do it for a month straight. When you're within the range where it can shed heat faster than you're pouring heat into it you're indestructible. Now ANYTHING above that and anything beyond the 1200W your sub can shed just piles up. To some degree the heat causes a rise in impedance which might help you a bit, but when you really start over-powering a coil it over heats really fast. So as you exceed the sine wave rating you can count on failure exponentially quicker as you scale power.</p><p></p><p></p><p>Who knows how stiff those spiders are? Certainly the only time I've seen this on subs I'd consider good is if they're custom built for guys who do huge power and need it to survive. Really if you buy a GOOD American made spider like the ones I use or even one of the better quality Chinese pressed packs like Sundown's red one I can't even imagine why anybody would need more than 1 or 2. If those are 3 stacked because you can't get the stiffness they use in 1 or 2 those subs have to be wildly inefficient and I'm guessing with Chinese coils that something else would fail long before you needed that much suspension to keep it from breaking mechanically.</p></blockquote><p></p>
[QUOTE="hispls, post: 8636722, member: 614752"] Sine waves again would be honest, though again the JL method is really handy. There is no reason to suspect there's not some program material out there that isn't close to solid sine waves in other frequency ranges. [URL="http://www.jlaudio.com/header/Support/Tutorials/Subwoofer+Power+Chart/Subwoofer+Power+Chart/466834"]JL Audio » header » Support » Tutorials » Subwoofer Power Chart[/URL] The idea being if you give retard proof ratings you KNOW that anything that comes back broken was done by abuse (unless you see some obvious sign of legit manufacturing defect). People who know what they're doing can try to throw more power at things but they will understand that they're on their own and it is abuse, novices can have a better idea of what is safe.... saves a lot of hard feelings later. Naught for nothing but pushing things into thermal or mechanical compression isn't really efficient anyway, you get even worse diminishing returns for throwing more power at it. Consider how a speaker cooling works. A 3" 4 layer copper coil can typically hang with 1200W 50hz sine wave. If it'll hold that for an hour it'll do it for a month straight. When you're within the range where it can shed heat faster than you're pouring heat into it you're indestructible. Now ANYTHING above that and anything beyond the 1200W your sub can shed just piles up. To some degree the heat causes a rise in impedance which might help you a bit, but when you really start over-powering a coil it over heats really fast. So as you exceed the sine wave rating you can count on failure exponentially quicker as you scale power. Who knows how stiff those spiders are? Certainly the only time I've seen this on subs I'd consider good is if they're custom built for guys who do huge power and need it to survive. Really if you buy a GOOD American made spider like the ones I use or even one of the better quality Chinese pressed packs like Sundown's red one I can't even imagine why anybody would need more than 1 or 2. If those are 3 stacked because you can't get the stiffness they use in 1 or 2 those subs have to be wildly inefficient and I'm guessing with Chinese coils that something else would fail long before you needed that much suspension to keep it from breaking mechanically. [/QUOTE]
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