JBL AC118S 18 High Power Subwoofer System White
In stock
- SKU
- AC118S-WH
Description
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.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The JBL AC118S is an 18-inch powered subwoofer built for touring rigs, installed PA systems, and venues that demand serious low-end authority without compromise. Its 450 W continuous / 900 W program power, 122 dB SPL output, and flat response down to 40 Hz provide the controlled bass extension needed for rock, metal, and full-range live sound on any stage. Compact enough at 32.3 kg to load in and out reliably, rugged enough in plywood-and-steel construction to survive road life and permanent installation—it's the sub you trust when the bass has to be there.
Frequently Asked Questions
What is the AC118S powered or passive?
The AC118S is a powered subwoofer with a built-in 450 W continuous amplifier (900 W program / 1800 W peak). You simply run an audio signal from your mixer or amplifier into the dual Neutrik connectors.
How low does it go, and will it work for a small venue or home studio?
The AC118S reaches 40 Hz at ±3 dB and extends to 32 Hz at -10 dB, making it suitable for full-range music playback in small-to-medium venues, live rigs, and studio environments. Its compact vented cabinet design fits tight spaces while delivering genuine sub-bass authority.
Is the AC118S portable or is it fixed-install only?
At 32.3 kg (71.2 lbs), it's substantial but portable—designed for both mobile touring rigs and permanent installations. Twelve threaded suspension points allow flexible mounting, and the robust plywood cabinet is road-rated for repeated transport.
What connectors does it have, and will it work with my existing PA or studio setup?
The AC118S includes dual Neutrik NL4MP connectors plus barrier trip terminals, accommodating both Speakon-style and traditional wiring. This flexibility makes it compatible with standard mixing consoles, power amps, active monitor systems, and most pro-audio interfaces.
Can I mount this subwoofer in different ways?
Yes. Twelve M10 threaded suspension points allow corner placement, floor mounting, or custom rigging setups depending on your venue or studio layout.