Overview:
Audio professionals looking for a next-generation intelligent subwoofer will be impressed with the QSC LS 118, an active subwoofer that's designed to complement the LA 108 and LA 112 line array loudspeakers, featuring a brilliant combination of cutting-edge innovation, refined engineering, and unparalleled ease of use in an easy-to-deploy package, well suited for live venues, fixed installations, mobile entertainers, AV rental, and event production.
The LS 118 utilizes a 3600W Class-D amplifier module, which powers the 18" woofer for a frequency response of 41 to 98 Hz with a max SPL of 136 dB. The rear panel features a 2.4" full-color display with a rotary push-button for setting up speaker configurations and fine-tuning the sound. The two 3-pin XLR connectors, powerCON True 1 I/O connectors, and two RJ45 etherCON network I/O connectors are Dante and QSC SysNav compatible. The LA 118 includes a powerCON TRUE 1 power cord.
Features:
- Very high SPL output (136 dB peak) with impressive low-frequency performance
- Purpose-designed 18" long excursion direct radiating driver
- Energy-efficient, 3600W peak power Class-D amplifier module with Power Factor Correction and extremely low AC consumption
- Acoustic Linear Phase (ALP) design provides complementary coherence between QSC loudspeakers deployed in the same audio system delivering a uniform listening experience across the entire venue
- QSC SysNav (System Navigator) App allows the user to easily design, configure, control, monitor, and apply signal processing to individual subwoofers, full arrays, or groupings of both
- Network solution includes digital audio-over-IP (Dante) for interoperability with other audio equipment and seamless control and monitoring integration into the Q-SYS Ecosystem via Q-SYS Inventory Extensions
- Omnidirectional or cardioid radiation modes (cardioid setup requires minimum 2 units)
- Selectable DEEP mode for extremely low-frequency extension
- Rugged wooden enclosure with polyurea coating for lasting durability
- Four low-noise heavy-duty casters
- Vertical or horizontal deployments (M20 threaded pole receivers) combined with array frames and stack adapters or loudspeaker poles
- Complemented by optional LA 108 and LA 112 active line array loudspeakers
- 6-year extended warranty with product registration
Specs:
| Configuration | Active Subwoofer |
| Enclosure Type | Bass-Reflex Line Array Subwoofer |
| Total Power Capacity | 3600 W |
| Amplifier Power Rating | LF: 3600 W |
| Amplifier Class | Class-D |
Drivers
| HF Driver | None |
| MF Driver | None |
| LF Driver | 1 x 18" / 457.2 mm Woofer |
Performance
| Frequency Range | 35 Hz to 111 Hz -10 dB |
| Frequency Response | 41 Hz to 98 Hz -6 dB |
| Maximum SPL | 136 dB (Peak) |
Connectivity
| Audio I/O | 1 x XLR 3-Pin Line Input 1 x XLR 3-Pin Line Thru |
| Network I/O | 2 x RJ45 (Control/Dante/Network) In/Out |
| USB | None |
| Wireless Connectivity | None |
| Mobile App Compatible | Yes: iPadOS Only App Name: QSC SysNav *As of March, 2023: Check with manufacturer for the most up-to-date compatibility |
Signal Processing
| Filters | High-Pass |
| Dynamic Processing | Limiter |
Power
| AC Input Power | 100 to 240 VAC, 50 / 60 Hz |
| AC Power I/O | 1 x powerCON Input 1 x powerCON Output |
| Current Consumption | 100 VAC: 3.6 A (1/8 Power) 120 VAC: 3 A (1/8 Power) 230 VAC: 1.7 A (1/8 Power) |
