So I finally have the DATS v3 to measure my custom made field coil full range driver. And most of it is ok, but I get a way too high Vas. My guess is that it has to do with the phase plug that doesn't move, while a dust cap does. So entering the diameter the usual way, might overestimate the Vas. And using the Vas that I have now in WinISD results in hideously huge boxes. How to correct for this?
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