Product identification
- Model
- SX218 Dual 18-Inch Passive Direct-Radiating Subwoofer
- Product category
- Subwoofer Systems

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| Type | Dual‑driver, direct radiating subwoofer |
|---|---|
| Drivers | 2×18" (460mm) / 4" (100mm) voice coil, long‑excursion, ferrite magnet, waterproof cone |
| Frequency Response | 35Hz–150Hz ±3dB, -10dB @ 30Hz |
| Max SPL | 144dB peak @1m |
| Impedance | 2×8Ω |
| Power Handling | 2000W AES / 8000W peak |
| Dispersion | Omnidirectional / Cardioid (paired) |
| Connectors | 2×NL4 |
| Dimensions | (W×H×D): 1093×537×792mm (with skids) |
| Weight | 102kg / pc |
| Sensitivity | 105dB |
Function / configuration: low-frequency extension for main PA systems



SX218 Dual 18-Inch Passive Direct-Radiating Subwoofer