Assertion: speaker's woofer | /r/HasProperty | measured to opposing peak
Facets:
value: from the peak of the surround
type: TEMPORAL
Source sentences:
text: For example, a 6.5-inch woofer with an effective radiating-area diameter of five inches (measured from the peak of the surround to the opposing peak) starts to beam at about 2,702 Hz, or 13,512 divided by five.