JBL SRX918S Powered Subwoofer

Powerful Subwoofer for Professional Sound Reinforcement
The JBL SRX918S powered subwoofer is the ultimate low-frequency solution for professional audio applications. Designed to seamlessly integrate with the SRX900 Series, this single 18-inch subwoofer delivers exceptional performance for rental companies, touring artists, DJs, and fixed installations. With its built-in DSP and Class-D amplification, the SRX918S offers a plug-and-play experience while maintaining consistent, high-quality sound in any environment.

Exceptional Low-Frequency Performance
At the heart of the SRX918S is JBL's advanced 18-inch Differential Drive woofer. Featuring dual 3-inch voice coils, this driver delivers transparent, linear bass response down to 35 Hz, making it ideal for a wide range of live sound and playback applications. The subwoofer’s large low-frequency port design improves airflow and reduces turbulence, ensuring smooth and powerful bass even at high output levels.

Integrated Amplification and DSP for Versatility
The SRX918S includes a built-in Class-D amplifier and advanced DSP, providing everything needed to optimize your sound system. With 24 user-adjustable filters, 2000ms of delay, and features like array size compensation and FIR-based throw-distance correction filters, the SRX918S ensures precise sound customization. The rear-panel LCD offers direct access to all DSP functions, or you can control the subwoofer remotely using JBL’s software on Windows, macOS, or iOS devices.

Flexible Configuration Options
Designed for compatibility with the SRX900 Series, the SRX918S supports multiple setup options, including omnidirectional and cardioid configurations. Easily select the desired operating mode using the speaker’s built-in presets or JBL’s control software. This flexibility makes the SRX918S suitable for ground stacking, flown arrays, or standalone use with full-range speakers.

Durable and Road-Ready Design
The SRX918S is built to handle the demands of touring and installations. Its reinforced 0.7-inch plywood enclosure provides durability and reduces resonance for superior sound clarity. Equipped with dual Ethernet ports featuring Neutrik etherCON connectors, the subwoofer supports HARMAN’s HControl Ethernet for seamless integration into complex audio setups.

Scalable Solutions for Any Application
Whether you’re starting with a compact system or scaling up for larger venues, the SRX900 Series offers complete compatibility and modularity. The SRX918S subwoofer is acoustically and mechanically designed to work seamlessly with other JBL tour sound products, ensuring consistent voicing and performance across your system.