0 a part of a loudspeaker that is designed to produce the very low notes in a sound system -- 超低音扬声器，重低音喇叭
The subwoofers' tuning ports were blocked and their input cards were altered.
The only difference was a redesigned center channel and a smaller subwoofer.
It has been used to isolate subwoofers from turntables.
Both had a headphone jack in the front of one speaker along with the volume control and an optional subwoofer connection port on some models.
It produced bass louder and lower with distortion levels 20-30 times less than any other subwoofer on the market at that time.
Typical filters involve some overlap in frequency ranges; a steep filter is not generally desired for subwoofers.
The, contained a subwoofer connected to a sound system that made the bed vibrate.
For example, one can add a subwoofer as well as different types of decals.
