Assertion: loaded subwoofer | /r/HasAspect | a floor mouth
Facets:
Source sentences:
text: The horn-loaded subwoofers each have a floor mouth that is 2.2 square meters (24 sq ft), and a horn length that is 9.5 meters (31 ft), in a cavity 1 meter (3 ft 3 in) under the floor of the listening room.