Are you trying to use the manufacturer's posted impedance data to derive the parameters? or have you taken your own impedance measurements.
If you have your own measurements, post them here and I will generate the Semi-Le parameters for you.
If not, I could post the Semi-Le parameters for those drivers based on the manufacturer's data, but be aware that their data doesn't go low enough in frequency to avoid making some assumptions about Re'. See Post#25
Find attached the manufacturer's datasheets and the Semi-Le parameter text files derived from the impedance curves contained in them.
With no data below 20Hz, Re' was set manually to provide the best visual model fit.
Vas was set to the value in the datasheet.
With no data below 20Hz, Re' was set manually to provide the best visual model fit.
Vas was set to the value in the datasheet.
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Plots with Log impedance scale are already included, just off to the right.
They were added back in V2 so you could separate out and see how well the blocked impedance and motional impedance model matched measured data.
Here are two examples to illustrate differences you might see. (Dayton Classic 12", BC18DS115-8)
Just a reminder that although the Spreadsheet TABs are locked, there is no password.
So you can unlock and modify any of the existing plots as you desire.
They were added back in V2 so you could separate out and see how well the blocked impedance and motional impedance model matched measured data.
Here are two examples to illustrate differences you might see. (Dayton Classic 12", BC18DS115-8)
Just a reminder that although the Spreadsheet TABs are locked, there is no password.
So you can unlock and modify any of the existing plots as you desire.