The JRX218S is driven by a massive JBL 18" woofer with a cast frame and 3" voice-coil.
Features- 18 in. compact subwoofer.
- 350 W (continuous), 1400 W (peak) power capacity.
- The rugged enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved low-frequency performance. The enclosure is covered in black carpet.
- A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX218S as a base for a midhigh speaker cabinet.
- Non-resonant, all steel handles are used.
- Attractive 18-gauge perforated steel grille protects components from damage.
| Power Rating | 350 W / 1400 W |
| Frequency Range (-10dB) | 34 Hz - 250 Hz |
| Frequency Response (±3 dB) | 53 Hz - 250 Hz |
| Sensitivity (@1m) | 98 dB SPL |
| Nominal Impedence | 4 ohms |
| Recommended Amplifier Power | 350 W to 700 W into 4 ohms |
| Maximum SPL (1m) | 133 dB |
| Dimensions (H x W x D) | 605 mm x 508 mm x 551 mm (23.5 in x 20.3 in x 22 in) |
| Net Weight | 32.2 kg (71 lb) |
| LF Driver | M118-4 |
| Inputs | Neutrik® Speakon® NL-4 (x2); parallel |
| Enclosure | MDF (Medium Density Fiberboard) covered in black carpet. |