Adrian, that would appear to be a remarkable feat of energy creation, if accurate. An acoustic watt, at one meter, results in roughly a 112dB SPL. So a 100% efficient speaker would have about a 112dB sensitivity number. A 1% efficient speaker would be about 92dB for 1 watt input, and typical speakers with sensitivity numbers in the high 80s are about 1/2% efficient at turning electrical power into acoustical power.

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Enjoy the music, not the equipment.