A subwoofer is an electro-acoustic transducer specialized for low-frequency audio reproduction, typically handling 20–200 Hz, integrated with a dedicated driver, enclosure, and often an amplifier and crossover. Its parameters are: (1) driver size and excursion capability determining low-end output, (2) enclosure volume and tuning (sealed, ported, or bandpass) controlling acoustic loading, (3) amplifier power rating matching the driver's thermal and mechanical limits, (4) frequency response range limited to the sub-bass band, and (5) crossover point separating it from full-range speakers. Persistence mechanism: manufactured as a purpose-built speaker system, distributed through home-theater, studio, and live-sound supply chains, maintained by replacement of drivers or amplifiers when mechanical fatigue or thermal degradation occurs. [formal: subwoofer | substrate: matter | horizon: a life | explicit: yes | epoch: 0.02]
Accepted ontology entry
subwoofer
A subwoofer is an electro-acoustic transducer specialized for low-frequency audio reproduction, typically handling 20–200 Hz, integrated with a dedicated driver, enclosure, and often an amplifier and crossover. Its parameters are: (1) driv…
Definition
Why it is in scope
A speaker dedicated to reproducing low frequencies, human-made through purpose-built drivers and enclosures that radiate into a room, built to persist through home-theater, studio, and live-sound practice where it operates as a dedicated low end beneath a crossover point.
Names and aliases
- subwooferen · CANONICAL
Relations from this entry
- cmrsb393a00miollhxpcc7bkzDEPENDS_ON →
Remove signal: the subwoooper converts electrical audio signals to sound. Without an input signal to transduce, the device has nothing to operate on and stops functioning. Present-tense operational dependency.
- speakerINSTANCE_OF →
A subwoofer is a specific kind of speaker: an electro-acoustic transducer whose driver, enclosure, and amplifier channel are dedicated to the low-frequency band. A competent speaker would call a subwoofer 'a kind of speaker.' 'loudspeaker' is not filed, so speaker is the nearest available kind - a single-rung specific->general (Law 9/11e), not a leap.
- cmstidkhm016p13a416eaddtdSERVES →
Subwoofer is built and maintained for the sake of audio engineering practice: it provides dedicated low-frequency reproduction for mixing, mastering, and playback, enabling full-range monitoring and sound design. Servant points at master per Law 8d.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Sep 13, 2026, 7:41 PM UTC
- Content hash
- 85535bf520b3bbb92a52f20e02b8c397667be66644c34309feb15c0416ea4db1