On an acoustic guitar, the strings vibrate and the hollow part of the instrument, or the sound box,also vibrates.
VOA: special.2009.09.27
The company is showing off the sensoriactuator in its early stages by affixing it to a guitar, with two pickup channels beneath each of the acoustic's strings.
The warm strings and acoustic guitars that back his sparkling falsetto are equally as dramatic, and the sound he has created is huge and anthemic in spite of his modest solo artist oeuvre.