| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | subwoofer | United States | Commonly used to enhance bass in home theater and car audio systems | 1 |
| 2 | subwoofer | United States | Commonly used in home theater systems and car audio systems for enhanced bass and low-frequency sound reproduction. | 1 |
| 3 | subwoofer | United States | Often used in home entertainment systems to enhance low-frequency sound for a more immersive audio experience. | 1 |
| 4 | subwoofer | United States | Commonly used as part of a home theater or audio system for enhanced sound quality | 1 |