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 SRX918SF incorporates a large low-frequency port design that improves airflow and reduces audible turbulence, even at high output levels. A reinforced 18 mm birch plywood cabinet ensures enhanced strength and durability. A full-featured software package gives users complete control of the system on various platforms, including Windows, macOS, and iPad OS.

Features:

• High-performance, high-density system solution in a truck-pack friendly format
• High-power-handling transducers deliver low distortion and class-leading output
• Built-in, passively-cooled Class D amplification with a universal power supply
• Dual Ethernet ports with Neutrik etherCON connectors
• Complete control and configuration with JBL Performance software over HARMAN''s HControl protocol
• User-controllable DSP
• LevelMax limiting uses sophisticated excursion-control algorithms to protect transducers
• Rear-panel LCD provides access to control features
• Reinforced birch plywood enclosures
• M20 threaded mount for pole mounting or ground stacking full range components
• Integrated three-point rigging system