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Acoustic Elegance AV12-X D2!
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<blockquote data-quote="John_E_Janowitz" data-source="post: 6102826" data-attributes="member: 550657"><p>We can occasionally get that cold here in Wisconsin also, although not too often. I remember one year when I was at Michigan Tech up in Houghton when Lake Superior completely froze over. We'd have temps in that range for several days at a time.</p><p></p><p>The colder the temperature, the better most electronics work. Heat is the big thing that affects amps. Likewise in a woofer, heat raises the resistance of the VC wire so the warmer it is, the less power you can deliver. The colder the better as far as getting power to the woofer. The only thing typically to worry about in a woofer is that the surround will stiffen up in the cold. We specifically picked santoprene for the surround. It has the lowest brittle point of any rubbers out there. It was designed for use in gromets and rubber boots in vehicles that would be subjected to these kind of extreme temperatures. It's brittle point is -65F or about -54 Celsius. It should have no issues with cracking or breaking, although these extreme temperatures will raise the Q of the driver significantly. It should work with no issues, but in any very cold weather situation I would play any woofer at moderate levels until the inside of the cabin warms up.</p><p></p><p>As far as the top end of the heat spectrum, santoprene is good to nearly 280F before it begins to drastically soften. It is thermoformed at about 320F. In any woofer the thermal power handling will go down in extreme heat situations. Amps will heat up easier and clip easier as well. Anytime the ambient temperature of the vehicle is higher, a woofer or amp can't dissipate heat as easily as if it were colder.</p><p></p><p>John</p></blockquote><p></p>
[QUOTE="John_E_Janowitz, post: 6102826, member: 550657"] We can occasionally get that cold here in Wisconsin also, although not too often. I remember one year when I was at Michigan Tech up in Houghton when Lake Superior completely froze over. We'd have temps in that range for several days at a time. The colder the temperature, the better most electronics work. Heat is the big thing that affects amps. Likewise in a woofer, heat raises the resistance of the VC wire so the warmer it is, the less power you can deliver. The colder the better as far as getting power to the woofer. The only thing typically to worry about in a woofer is that the surround will stiffen up in the cold. We specifically picked santoprene for the surround. It has the lowest brittle point of any rubbers out there. It was designed for use in gromets and rubber boots in vehicles that would be subjected to these kind of extreme temperatures. It's brittle point is -65F or about -54 Celsius. It should have no issues with cracking or breaking, although these extreme temperatures will raise the Q of the driver significantly. It should work with no issues, but in any very cold weather situation I would play any woofer at moderate levels until the inside of the cabin warms up. As far as the top end of the heat spectrum, santoprene is good to nearly 280F before it begins to drastically soften. It is thermoformed at about 320F. In any woofer the thermal power handling will go down in extreme heat situations. Amps will heat up easier and clip easier as well. Anytime the ambient temperature of the vehicle is higher, a woofer or amp can't dissipate heat as easily as if it were colder. John [/QUOTE]
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