| Specification | Details | ||
|---|---|---|---|
| 21NTLW5000 | High Power Neodymium Subwoofer Driver | 21 Inch | Large concert subwoofers, touring PA systems and festival sound setups |
| 21NLW9601 | Professional Neodymium LF Driver | 21 Inch | High-performance subwoofer cabinets and touring sound systems |

