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General speaker questions for audio and home theater.

With a Harmon mute, significant energy up to 100 kHz!!

A number of other instruments have harmonic spectrums that extend well into ultrasonics.

Quoting from "There's Life Above 20 Kilohertz! A Survey of Musical Instrument Spectra to 102.4 KHz" by James Boyk of the California Institute of Technology:

"Harmonics of French horn can extend to above 90 kHz; trumpet, to above 80; violin and oboe, to above 40; and a cymbal crash shows no sign of running out of energy at 100 kHz."

Below is a link to Mr. Boyk's paper, which you might find interesting.


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