JBL AC118S 18 High Power Subwoofer System White

JBL AC118S 18" High-Power Subwoofer System White

The JBL AC118S is a serious, compact subwoofer system built for installations where deep low-end extension and clean power handling are non-negotiable. At 32.3 kg, it's substantial enough to deliver genuine bass authority yet portable enough for mobile rigs, fixed installations, or portable sound reinforcement applications. The robust plywood cabinet and dual Neutrik connectors signal a piece of equipment designed to work hard in professional environments.

Audio Performance

This system achieves 122 dB maximum SPL at 1 meter with a peak capability of 128 dB, powered by 450 W continuous / 900 W program / 1800 W peak handling. The 18-inch woofer with 75 mm voice coil reaches down to 32 Hz at -10 dB and 40 Hz at ±3 dB, providing articulate low-frequency response across a wide operating range. System sensitivity of 95 dB at 1W/1m ensures efficient coupling with standard amplification without requiring excessive driver excursion.

Design & Build

The cabinet uses 18 mm multi-ply hardwood plywood construction with a vented, front-loaded configuration optimized for compact placement. Twelve threaded suspension points provide flexible mounting options, while the powder-coated 1.5mm perforated steel grille with acoustic foam backing protects the driver without coloring the output. Dual Neutrik NL4MP connectors plus barrier trip terminals accommodate both speakon and traditional wiring approaches.

Key Features

• 18-inch woofer with 75 mm (3 in) voice coil
• Frequency range: 32 Hz – 250 Hz (-10 dB)
• Frequency response: 40 Hz – 250 Hz (±3 dB)
• Maximum SPL: 122 dB (128 dB peak) at 1 meter
• Power rating: 450 W continuous / 900 W program / 1800 W peak
• System sensitivity: 95 dB (1W @ 1m)
• 8 ohms nominal impedance
• Dual Neutrik NL4MP connectors plus barrier trip terminals
• 18 mm multi-ply hardwood plywood enclosure
• Vented, front-loaded cabinet design
• 12 × M10 threaded suspension points
• Dimensions: 548 mm H × 561 mm W × 720 mm D (21.5" × 22" × 28.3")
• Weight: 32.3 kg (71.2 lbs)

The AC118S delivers controlled low-frequency extension and proven power handling for touring, installed sound, and permanent venue applications where extended bass response is essential.