A type of loudspeaker enclosure that uses the sound from the rear side of the diaphragm to increase the efficiency of the system at low frequencies, as compared to a typical closed-box loudspeaker or an infinite baffle mounting.

A fish, the crappie.

(music) A double bass (lowest-pitched of instruments of violin family).

(music) double bass (lowest-pitched of instruments of violin family)

Synonym of double bass (“lowest-pitched of instruments of violin family”).

(music) double bass (lowest-pitched of instruments of violin family)

(music) A double bass. (lowest-pitched of instruments of violin family)

(music) Intervals, each containing a low note followed by the pitch that is one octave higher, played on a keyboard, especially a harpsichord

A whitefish in species Coregonus artedi, found in lakes of the Great Lakes region of North America.

A strait between Australia and Tasmania.