Mark, it depends on what the argument is about. If it's about sound waves of those frequencies in air, then the calculation is as Bren described. If it's about electrical signals at those frequencies going along a wire, the calculation would be based on a speed approaching the speed of light(about 186,000 miles per second)rather than the speed of sound, and would be many miles for all audio frequencies.

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Enjoy the music, not the equipment.