SONOS:Listening to Quality Speaker manufacturer SONOS makes a good thing better with KEYENCE. With growth comes challenges, however, and Sonos recently began looking for an easier and more accurate way to validate speaker component quality levels, many of which are made of exible materials that are di cult to measure. One of these is a damping mechanism known throughout the industry as a spider, a piece of fabric covered a phenolic resin and then pressed over steel dies into a corrugated shape, giving it a complex geometry and part prole best described as a sine wave. Tony Ferraro, transducer mechanical engineering manager at Sonos’ Boston, MA facility says the spider is an important part of sound quality, and is analogous to an automobile suspension, in that it controls oscillation of

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