JBL SRX918S – Single 18" Powered Subwoofer
JBL SRX918S – Single 18" Powered Subwoofer
The JBL SRX918S is a professional powered subwoofer featuring a single 18-inch Differential Drive woofer, integrated Class-D amplification, and advanced DSP. Designed for touring, concerts, and professional sound reinforcement, it delivers powerful low-frequency performance, precise system control, and flexible cardioid configurations.
Key Specifications
134 dB Maximum Peak SPL
Single 18" JBL Differential Drive Woofer
Dual 3" Voice Coils
1100W Continuous Class-D Amplification
35 Hz Low-Frequency Extension (-10 dB)
Integrated DSP with LevelMax Limiting
Networked Control via HControl Ethernet
Shipping & Pickup
- Nationwide shipping available.
- Professionally packed for safe transport.
- Local pickup available in Phillipsburg, NJ.
Product Overview
The JBL SRX918S is part of the SRX900 Series of professional powered sound reinforcement systems. Its single 18-inch JBL Differential Drive woofer, integrated Class-D amplification, and advanced DSP provide powerful, controlled low-frequency performance in a compact, high-output enclosure.
Designed for professional touring, live events, and permanent installations, the SRX918S supports standalone and multi-subwoofer configurations, including cardioid arrays using compatible DSP settings.
Technical Specifications
| System Type | Single 18" Powered Subwoofer |
| LF Driver | 18" JBL Differential Drive Woofer with Dual 3" Voice Coils |
| Maximum SPL | 134 dB Peak |
| Amplification | 1100W Continuous Class-D |
| Frequency Range (-10 dB) | 35 Hz – 90 Hz (80 Hz Preset) |
| DSP & Control | Integrated DSP, LevelMax Limiting, JBL Performance Software |
| Network Connectivity | Dual Ethernet Ports with Neutrik etherCON |
| System Control | HARMAN HControl Ethernet |
| Enclosure | 18 mm Plywood with Black DuraFlex Finish |
| Configuration | Standalone, Ground-Stacked, or Cardioid Array Configurations |
| Power Connections | Neutrik powerCON TRUE1 IN/OUT |