The SRX918SF is a single 18-inch powered subwoofer engineered to deliver best-in-class low-frequency performance for live sound and fixed installations. Featuring the JBL 2279G-1 Differential Drive woofer with dual three-inch voice coils, it provides transparent, linear bass response down to 35 Hz with reduced power compression and superior dynamic range. A large low-frequency port design ensures smooth airflow and minimal turbulence, even at high output levels.
Built-in Class-D amplification and DSP provide a plug-and-play solution, featuring 24 user-adjustable filters, a 2,000 ms delay, and advanced optimization tools such as Array Size Compensation and FIR-based Throw Distance Correction. With simple preset selection, the SRX918SF supports both omnidirectional and cardioid configurations, giving sound engineers precise control over coverage.
Designed to integrate seamlessly with the SRX900 Series, the SRX918SF shares width and suspension hardware with the SRX910LA, enabling versatile flown and ground-stacked configurations. With powerful JBL transducer technology, intuitive software control, and scalable system compatibility, the SRX918SF is a flexible and reliable choice for touring, rental, and installed sound applications.
| Frequency Range (-10 dB) | 35 Hz -100 Hz |
|---|---|
| Coverage Pattern | Omnidirectional or Cardioid |
| Maximum SPL | 134 dB |
| System Type | Active Subwoofer |
| Amplifier Design | Class-D |
| Continuous Power Rating | 1,100 Watts |
| LF Driver | (1) JBL 2279G-1, 18 in diameter, 4 ohms, dual 3.0 in diameter voice coil, ferrite Differential Drive |
| Enclosure | Exterior grade birch plywood, Black DuraFlex finish |
| Dimensions (H x W x D) | 22.6" (575 mm) x 28" (710 mm) x 26.9" (683 mm) |
| Weight | 120 lbs (54.4 kg) |
| Shipping Weight | 144 lbs (65.1 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
