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<blockquote data-quote="Josh Ricci" data-source="post: 212753" data-attributes="member: 1594">There&#039;s a bunch of discussion on inductance going back many years on various forums. It&#039;s spread all over but the majority is at DIYAudio, AVS or DB. David kindly incorporated complex semi inductance modeling into HR last year. D. Bolserst has developed a free excel sheet that can derive the semi inductance specs from .txt files of impedance measurements via a curve fitting process. It&#039;s downloadable from DB or DIYAudio. All of the drivers that I have measured have the semi inductance parameters used by HR posted in the driver page. Click the Le field in HR and it will pull up a screen for their entry. The Le label will turn green when active. It is best to use the specs from the exact driver but they can be used generically with the factory specs. Try using the 21DS specs I have measured at DB for your HR sims using that driver. It is a LOT closer than using nothing or the Lossy Le function (Le label RED). I&#039;m hoping that in a few years these specs will be adopted and reported by the major MFG&#039;s, but the industry is slow to change.Long story short...Yes it matters if you care that what you are simulating will perform like the real speaker.</blockquote>

[QUOTE="Josh Ricci, post: 212753, member: 1594"] There's a bunch of discussion on inductance going back many years on various forums. It's spread all over but the majority is at DIYAudio, AVS or DB. David kindly incorporated complex semi inductance modeling into HR last year. D. Bolserst has developed a free excel sheet that can derive the semi inductance specs from .txt files of impedance measurements via a curve fitting process. It's downloadable from DB or DIYAudio. All of the drivers that I have measured have the semi inductance parameters used by HR posted in the driver page. Click the Le field in HR and it will pull up a screen for their entry. The Le label will turn green when active. It is best to use the specs from the exact driver but they can be used generically with the factory specs. Try using the 21DS specs I have measured at DB for your HR sims using that driver. It is a LOT closer than using nothing or the Lossy Le function (Le label RED). I'm hoping that in a few years these specs will be adopted and reported by the major MFG's, but the industry is slow to change. Long story short...Yes it matters if you care that what you are simulating will perform like the real speaker. [/QUOTE]

Verification