Planar drivers ... not just for tweeters anymore

[CoronaOperator]

Point sources: -6dB's/doubling of distance
Line sources: -3dB's/doubling of distance
Plane sources: 0 dB's/doubling of distance


https://www.facebook.com/video.php?v=1586085964983232

[Bill Fitzmaurice]

Plane sources: 0 dB's/doubling of distance

There's no such thing as a source with 0dB losses. That's a line source. Too bad it's oriented the wrong way.
Very impressive if you don't know how speakers work. Needless to say, I'm not impressed.

[CoronaOperator]

Plane sources: 0 dB's/doubling of distance

There's no such thing as a source with 0dB losses. That's a line source.

That's only because they haven't stacked the boxes to infinity on each axis yet and replaced the atmosphere with an ideal gas. I give them an A for effort though.

[Bill Fitzmaurice]

I give them an A for effort though.

I give them a 'D'. If they'd taken the effort to read a book on acoustics and learn the right way to do it they'd have gotten a better result with 1/3 the speakers. Then they might have gotten an 'A'.