That episode was such a cop out. Putting a candle in front of a big honking speaker cone? Of course it's going to get blown out.
Not one of their better episodes, no. But I don't know if was actually air movement that blew out the candle. As I recall, the flame 'danced' and flickered as they altered the frequency. It was not a specific volume that extinguished it, but a specific frequency. I'm not a physicist, but I think it had to do with the sound pressure waves, not so much a moving column of air as one would find from a speaker port.
I
really wish Mythbusters would do annother audio myth episode. I would dearly love to see them test some of the debated ones; such as if different amps sound different, whether wiring makes a difference, green markers on CD's, elevated speaker wire, etc, etc.
