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Message: <blockquote data-quote="John_E_Janowitz" data-source="post: 5511642" data-attributes="member: 550657">While it is clear just by listening that there is a decrease in output in cold weather, it is good to understand why it happens.  Once you know the causes, you can also see ways to minimize the effect.  In this case, the only real way is by choosing drivers that use a surround material that is more appropriate to climate changes.   In this case santoprene has the best range of operating temperatures, is also most chemically and UV resistant, and the most well damped.  It's only real drawback is cost vs other materials like NBR.John</blockquote>

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