JBL SRX918S 18" 2500W Powered Subwoofer

The SRX918S is a single 18-inch active subwoofer designed to complement SRX900 Series full-range sound reinforcement systems. The subwoofer houses a JBL 2279-1 18-inch woofer featuring Differential Drive - JBL's dual voice coil, dual gap technology - to deliver better heat dissipation, lower power compression, and wider dynamic range than conventional single-coil designs.

Built-in DSP and amplification offer a plug and play experience while providing consistency and optimum performance anywhere in the world. The SRX918S incorporates a large low frequency port design that improves airflow and reduces audible turbulence, even at high output levels. A new, full-featured software package gives users control of the system on various platforms, including Windows, macOS, and iPad OS.

Key Messages

Performance
The 2279-1 18-inch woofer delivers transparent, linear bass response down to 35 Hz. This driver uses dual three-inch voice coils and leverages JBL's patented Differential Drive technology to deliver maximum sensitivity and power handling in a light, compact design.

Compatibility
SRX900 Series subwoofers are acoustically compatible with all SRX900 full-range speakers and support 60 Hz and 80 Hz operating modes. SRX900 line arrays can be ground stacked with SRX900 subwoofers using the optional base plate accessories.

Controlled Coverage
SRX900 subwoofers can be used in omnidirectional or cardioid configurations simply by selecting the appropriate speaker preset and cabinet orientation. The preset can be accessed directly from the rear panel LCD or via software.

Powered Solution
The fully integrated built-in amplifier and DSP are based on proven JBL technologies and explicitly packaged to fit the needs of the SRX900 Series. The DSP includes everything needed to optimize a system, including 24 user-adjustable filters, 2,000 ms of delay, and advanced features like Array Size Compensation and FIR-based Throw Distance Correction filters.

Versatile And Scalable
The SRX900 Series offers a complete system solution, including speakers, subwoofers, accessories, and software that support a variety of configurations and simplify storage, transport, and rigging. Because systems are scalable, it's easy to start with a small system and add components over time. All SRX900 products have been designed to work seamlessly together with other JBL tour sound products, with common voicing targets and phase characteristics that ensure systems combine coherently.

Features

Best-In-Class Performance
JBL transducer technology delivers class-leading low frequency performance and superior dynamic range.

Configurable
Form cardioid arrays simply by orienting the cabinets and selecting a preset.

Powered Solution
Onboard Class-D amplification and DSP provide optimum performance and consistency across the world.

Complete System
The SRX900 Series is a complete solution featuring full-range products, subwoofers, accessories, and software.