1. very low frequency sound waves, typically below 60 Hz, that are felt more than heard
Usage: audio technology
2. a loudspeaker designed to reproduce very low frequency sounds
Usage: audio equipment

Examples

• The subbass frequencies made the entire room vibrate during the movie.
• You need a good subbass speaker to feel the full impact of electronic music.
• The sound engineer adjusted the subbass levels to prevent distortion.
• Most headphones cannot reproduce true subbass frequencies.
• The subbass response of this system extends down to 20 Hz.
• Concert venues often use multiple subbass units for large audiences.