JBL SRX918SF 18-inch Subwoofer

JBL SRX918SF 18-inch Powered Subwoofer

The SRX918SF is a heavyweight subwoofer engineered for studio and production environments where deep low-end extension and controlled bass reproduction are essential. This is a purpose-built tool for recording engineers, music producers, and mastering facilities that demand consistent, articulate bass reproduction across mixing sessions ranging from intimate tracking to full-band composition work.

Acoustic Performance

The 18-inch dual voice-coil driver paired with a 2,500-watt Class D amplifier delivers a linear frequency response down to 35Hz and maximum output of 134dB SPL. This combination produces the authoritative bottom end and dynamic headroom necessary for precise low-frequency monitoring without compression artifacts or distortion, allowing you to make confident mix decisions across your entire frequency spectrum.

Design & Studio Integration

Built from 18mm reinforced birch plywood and equipped with an integrated three-point rigging system, the cabinet accommodates both floor placement and suspended mounting configurations to optimize room acoustics. Dual etherCON Ethernet ports enable networked control and real-time DSP adjustment, supporting multi-sub deployments for room correction and phase-aligned bass reinforcement across your tracking or mixing space.

Key Features

• 18-inch JBL 2279G-1 driver with Differential Drive technology and dual 3-inch voice coils
• 2,500-watt Class D amplifier
• 35Hz linear frequency response
• 134dB maximum SPL output
• LevelMax limiting and 24 user-adjustable DSP filters
• 2,000ms signal delay for phase-aligned multi-unit arrays
• Array Size Compensation and FIR-based Throw Distance Correction
• 18mm reinforced birch plywood cabinet construction
• Integrated three-point rigging system for suspended or ground-stacked deployment
• Dual etherCON Ethernet ports for networked control
• Universal power supply
• 4-ohm driver impedance

The SRX918SF combines raw output capability with sophisticated onboard DSP processing and flexible mounting options, making it a reliable workhorse for professional recording and production workflows.