Samuel
Thanks for the feedback. I don't have an easy way to generate polars with accuracy. Since the drivers for the most part are of similar size and/or have similar polar responses within the region of crossover and I don't plan on altering the driver placement or crossover any more than is necessary, knowing the exact polar response is of secondary usefullness.
You comment on ferrofluid in the DT94 is interesting. While I have heard for years it negatively impacts sound, can you describe what it does to the sound, or perhaps provide measurement. my main concern removing it is that this may not be very reproducible or something many people want to do. I would be interested in giving it try though. I am also concidering the Tymphany?D19TD05-08 though that would require a 2-3 element impedance compensation network.
The OEM mid are the tough ones to replace. If they and tweeters were not so stiff due to drying adhesives and coatings I would just leave them alone. ?One of my tweeters and mids had failed voicemail leads that were repaired. Can you confirm that both the properly functioning mids and tweets have dual impedance peaks, like vented enclosure?
Charlie Conger