I was planning to give you a few links I had, one to a large spreadsheet of T/S parameters for various drivers, another to Futtrup's Driver Parameter Calculator and a third to Speaker Workshop. But I looked and found that the first two of the three links aren't valid anymore. I don't know what happened to them. But if you want to download Speaker Workshop, there's a link in this post called "obtaining driver parameters." Also of interest is this link called "EMD Corals," which I found looking for the other references. It has a lot of good information on Coral speakers.

Wayne

These are the TS parms measured from my own drivers.

• http://fullrangedriver.com/tiki-browse_image.php?imageId=97