In the “Don’t Run” video [ref] we can hear the crack from the mach cone followed soon after by the sound from the right JCB speaker, then the left speaker. Here is the video, playing at 0.1x speed:
As shown above, for the direct path from the mach cone, the crack traveled 75.5 m to reach the Don’t Run recorder. Looking at the audio waveform, we see that the sound from the right speaker arrives 34 ms after the direct path:
0.034 * c = 11.9 m
75.5 m + 11.9 m = 87.4 m
And that distance matches up well with the right telehandler.
The next sound is heard 50 ms after the direct path.
0.050 * c = 17.6 m
75.5 m + 17.6 m = 93.1 m
I don’t have the location coordinates for the left JCB telehandler, so I drew a line on Google Earth that was 93.1 m long, and as you can see in the image above, it terminates in a reasonable location for the left speaker to be.