JBL PRX918XLF Professional Powered 18-inch Subwoofer

JBL PRX918XLF Professional Powered 18-inch Subwoofer

The JBL PRX918XLF Professional Powered 18-inch Subwoofer is designed to provide powerful, extended low-frequency reinforcement for professional PA applications. As part of the PRX900 Series, it is built for DJs, live performers, venues, rental companies, and corporate AV environments that demand high-output, room-filling bass performance in portable or installed systems.

Equipped with a 918SG 18-inch ferrite magnet woofer and powered by an ultra-efficient Class D amplifier, the PRX918XLF delivers 1,000 W RMS (2,000 W peak) output with a maximum SPL of 134 dB. The system offers deep bass extension down to 30 Hz (-10 dB), ensuring impactful and controlled low-end reproduction even at high sound pressure levels. The FEA flared port design minimizes air noise and distortion while maintaining smooth low-frequency response.

An onboard color LCD screen provides access to a comprehensive DSP suite, including 6-band parametric EQ for precise tuning, selectable crossover frequencies (80 Hz, 100 Hz, 120 Hz), and delay settings for optimized system alignment. Integration with the JBL Pro Connect app enables wireless control of up to 10 compatible speakers, along with grouping and snapshot management for streamlined system configuration.

The enclosure is constructed from durable 18 mm birch plywood with optimized internal bracing to enhance rigidity and acoustic performance. Designed for road-ready reliability, the PRX918XLF features dual side handles, an M20 pole mount, quiet fanless cooling, and ultra-low system latency, making it a robust low-frequency foundation for professional sound reinforcement systems.

Features of PRX918XLF

• 918SG 18-inch ferrite magnet woofer

• Class D amplification, 1,000 W RMS / 2,000 W peak

• Maximum SPL of 134 dB

• Low-frequency extension down to 30 Hz (-10 dB)

• FEA flared port design reduces air noise and distortion

• 18 mm birch cabinet with optimized internal bracing

• Onboard color LCD for DSP control

• 6-band parametric EQ for system tuning

• Selectable crossover frequencies (80 / 100 / 120 Hz)

• Speaker delay for precise time alignment

• JBL Pro Connect app control for up to 10 speakers

• Optimized presets for pairing with full-range speakers

• Ultra-low latency <1 ms

• Quiet fanless operation

• Dual side carry handles

• M20 pole cup for mounting

• 2 x XLR Combo inputs and 2 x XLR pass-through outputs

Specifications of PRX918XLF