Professional Powered 18” Subwoofer

The JBL SRX918S is a high-performance powered 18-inch subwoofer designed for large-scale live events, concerts, corporate productions, touring systems, houses of worship, and professional sound reinforcement applications. Part of JBL’s SRX900 Series, it delivers exceptional low-frequency output, advanced DSP control, and precise system tuning for demanding professional audio environments.

Deep, High-Impact Low-Frequency Performance

Equipped with a single 18-inch JBL Differential Drive® woofer, the SRX918S delivers powerful and controlled bass response with exceptional clarity and efficiency. Capable of reaching up to 134 dB peak SPL, it provides tight, punchy low-end reinforcement ideal for music playback, live performances, DJs, and large venue sound systems where impact and definition are critical.

Advanced Amplification & DSP Control

The SRX918S features a built-in Class-D amplifier delivering up to 2,500 watts peak power and 1,100 watts continuous output. Integrated DSP processing allows precise tuning, system alignment, and preset control, including cardioid and omnidirectional configurations. This ensures optimal performance and consistent coverage across a wide range of venue types and deployment scenarios.

Professional Touring & System Integration

Designed for professional touring and installed systems, the SRX918S includes robust plywood construction with durable finish, integrated rigging compatibility, and network control options for system monitoring and adjustment. Its flexible design allows seamless integration with SRX900 full-range loudspeakers, making it an ideal choice for scalable PA systems in concerts, festivals, and large corporate events.