Concentric drivers

In all my 50 years of involvement with audio, I've never heard anyone mention Doppler shift before. I've been using Tannoys for most of those years, I've yet to notice any Doppler shift.

I suggest you may be looking for a problem that doesn't exist.

Regards,

Dan

Doppler (intermodulation) distortion would show up as a reduction in clarity at high SPLs, particularly with bass-heavy, complex music.  

Duke

I cannot recall who was the manufacturer, but I believe it was a builder of large panel speakers who extolled the virtues of law Doppler effect speakers (because of their large radiating surface, panels have quite small excursion, which reduces Doppler effect0. The same would be true of compression drivers and horn loaded drivers.  

This is all new to me....my Tannoys sound great!

“Doppler (intermodulation) distortion would show up as a reduction in clarity at high SPLs, particularly with bass-heavy, complex music.”

@Duke—do you have any experience with this?