Assertion: speaker's driver | /r/HasProperty | separated by distance
Facets:
Source sentences:
text: If the drivers are separated by a distance greater than ¼ (90 degrees) wavelength of the highest frequency being reproduced, then the time/distance issues that manifest themselves at those frequencies mean that at some angles relative to directly on-axis, their outputs combine in phase, and at some angles, their outputs cancel out of phase.