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<blockquote data-quote="sundownz" data-source="post: 7752335" data-attributes="member: 549523">Yes. We use a wall socket and a dimmer to dial power in -- which is not only 60 Hz but a really nasty 60 Hz wave at that (suppose I should not have said sine wave). It uses a Triac and looks like this on the output end :<img src="http://www.digikey.com/Web%20Export/techzone/lighting/TZL111_Drivers_for_Fig_3.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />This type of signal with low movement will cook a coil much quicker than a higher excursion test. I like my test as I consider it &quot;worst possible scenario&quot; -- if the sub handles 5+ minutes on that the rating is incredibly conservative thermally. My goal is zero thermal failures at our ratings. We have actually found very few other products that will pass this test for 5+ minutes even if they will take a severe beating under music conditions.In any event... what I am getting at; while the Type-R didn&#039;t like MY test it passes Alpine&#039;s test very well / will be fine @ that power on music and is an extremely good driver all in all -- the new Alpine stuff is easily my favorite mainstream stuff hands down.</blockquote>

[QUOTE="sundownz, post: 7752335, member: 549523"] Yes. We use a wall socket and a dimmer to dial power in -- which is not only 60 Hz but a really nasty 60 Hz wave at that (suppose I should not have said sine wave). It uses a Triac and looks like this on the output end : [IMG]http://www.digikey.com/Web%20Export/techzone/lighting/TZL111_Drivers_for_Fig_3.jpg[/IMG] This type of signal with low movement will cook a coil much quicker than a higher excursion test. I like my test as I consider it "worst possible scenario" -- if the sub handles 5+ minutes on that the rating is incredibly conservative thermally. My goal is zero thermal failures at our ratings. We have actually found very few other products that will pass this test for 5+ minutes even if they will take a severe beating under music conditions. In any event... what I am getting at; while the Type-R didn't like MY test it passes Alpine's test very well / will be fine @ that power on music and is an extremely good driver all in all -- the new Alpine stuff is easily my favorite mainstream stuff hands down. [/QUOTE]

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