Bass adapter has optionally shaped opening in loudspeaker housing that can be altered by mechanical arrangement and used to acoustically match loudspeaker to housing or room acoustics

摘要

The bass adapter has an optionally shaped opening in a loudspeaker housing that can be altered by a mechanical arrangement. This is used to acoustically match the loudspeaker to the housing or room acoustics. The arrangement produces a variable opening in the otherwise closed loudspeaker box.