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<blockquote data-quote="squeak9798" data-source="post: 2666109" data-attributes="member: 555320">I&#039;m impressed, and glad, you went and read up some on the topic.&nbsp; It&#039;s great that you want to actually learn (maybe you were just trying to prove me wrong...but either way, you&#039;re learning! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif)Your first couple sentences started out great....and it just went down hill from there.I&#039;m tired from shoveling snow, and don&#039;t really feel like typing.&nbsp; So I&#039;ll give you some &quot;homework&quot;.1) Lowpass cutoff frequency = Re/(2pi*Le)NOTE: Le needs to be in H, not mH, so you need to divide the Le by 1000 if it&#039;s stated in mH<a href="http://www.partsexpress.com/pe/pshowdetl.cfm?&amp;amp;Partnumber=295-460" target="_blank">Dayton Reference 10HF</a><a href="http://www.partsexpress.com/pe/pshowdetl.cfm?&amp;amp;Partnumber=295-468" target="_blank">Dayton Reference 15HF</a><a href="http://manuals.harman.com/JBL/CAR/Boxes%20and%20Parameters/GTO%201004D%20Enclosure.pdf" target="_blank">JBL GTO 1004</a><a href="http://manuals.harman.com/JBL/CAR/Boxes%20and%20Parameters/GTO%201504D%20Enclosure.pdf" target="_blank">JBL GTO 1504</a>Notice anything?(these are just a couple examples I found off hand in a couple minutes)2) <a href="http://www.acoustic-visions.com/~acoustic/products/subwoofer_drivers/adire_tumult_15/" target="_blank">http://www.acoustic-visions.com/~acoustic/products/subwoofer_drivers/adire_tumult_15/</a>Look at the parameters relating to the motor (Re, Le, Bl, power handling)....what does comparing these tell you?Also look at the sensitivity...since, according to you (if I&#039;m understanding your &quot;points&quot; correctly), it should decrease as the diameter increases.</blockquote>

[QUOTE="squeak9798, post: 2666109, member: 555320"] I'm impressed, and glad, you went and read up some on the topic. It's great that you want to actually learn (maybe you were just trying to prove me wrong...but either way, you're learning! [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG]) Your first couple sentences started out great....and it just went down hill from there. I'm tired from shoveling snow, and don't really feel like typing. So I'll give you some "homework". 1) Lowpass cutoff frequency = Re/(2pi*Le) NOTE: Le needs to be in H, not mH, so you need to divide the Le by 1000 if it's stated in mH [URL="http://www.partsexpress.com/pe/pshowdetl.cfm?&Partnumber=295-460"]Dayton Reference 10HF[/URL] [URL="http://www.partsexpress.com/pe/pshowdetl.cfm?&Partnumber=295-468"]Dayton Reference 15HF[/URL] [URL="http://manuals.harman.com/JBL/CAR/Boxes%20and%20Parameters/GTO%201004D%20Enclosure.pdf"]JBL GTO 1004[/URL] [URL="http://manuals.harman.com/JBL/CAR/Boxes%20and%20Parameters/GTO%201504D%20Enclosure.pdf"]JBL GTO 1504[/URL] Notice anything? (these are just a couple examples I found off hand in a couple minutes) 2) [URL="http://www.acoustic-visions.com/~acoustic/products/subwoofer_drivers/adire_tumult_15/"]http://www.acoustic-visions.com/~acoustic/products/subwoofer_drivers/adire_tumult_15/[/URL] Look at the parameters relating to the motor (Re, Le, Bl, power handling)....what does comparing these tell you? Also look at the sensitivity...since, according to you (if I'm understanding your "points" correctly), it should decrease as the diameter increases. [/QUOTE]

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