QSC Pro audio KS118
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- This item is covered for 3 years
Essential Information About the QSC KS118 Active Subwoofer
Essential Information About the QSC KS118 Active Subwoofer
- Powerful and deep bass thanks to the 18" driver and 1,800 W Class D amplification (3,600 W peak).
- Built-in DSP with advanced functions to optimize sound output according to configuration and venue.
- Road-ready design: robust chassis, two 35 mm sockets with M20 threading, and 2 carrying handles.
- Professional integration via XLR inputs/outputs and a max SPL level of 136 dB.
Manufacturer Information
QSC Pro Audio
https://www.qsc.com
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Safety manager:
Algam SAS
Email: contact@algam.net
Address:
The KS Series, QSC's New Generation
The KS118 is part of the KS series, QSC's new generation of subwoofers designed to deliver bass reproduction tailored to real-world needs. Backed by over fifty years of the brand's expertise in professional sound reinforcement, the range focuses on performance, reliability, and versatility for both rental companies and fixed installations.
Who Is It For and What Are Its Uses?
Ideal as front-of-house reinforcement, the KS118 targets theaters, clubs, event professionals, artists, and rehearsal spaces seeking massive, clean, and controlled bass. Its XLR connectivity simplifies integration into a modern sound system chain, whether with full-range speakers or within an existing QSC setup.
Power, Control, and Portability
Powered by Class D amplification and an 18" driver, the KS118 delivers solid bass with a maximum sound pressure level of 136 dB. The internal DSP provides advanced processing to tailor the response based on the venue's acoustics and system configuration.
Designed for touring, it features two 35 mm sockets with M20 threading for pole and satellite installation, as well as two handles for safe handling despite its 47 kg weight. Its discreet black finish allows for seamless integration on stage or in fixed installations.
Technical specifications
| Battery | No | EQ | Yes |
| Frequency response - start | 41 Hz | Baseplate width | 35 mm |
| Frequency response - end | 98 Hz | Cutaway | No |
| Category | Soundsystem | SPL max | 136 dB |
| Type | active subwoofer | Speaker structure | wood |
| Peak power | 3600 W | Transport | 2 handles |
| Number of channels | 1 channel | Inputs | 2 x combo XLR/jack |
| Amplification | Active amplified | Outputs | 2 x XLR |
| Application | Facade | Color | Black |
| Bluetooth | No | Finishing | Black & chrome |
| Connection | Combo, XLR Link, XLR | Power output | 1800 W |
| Speaker diameter | 18" | Weight | 47 kg |
| Number of speakers | 1 | Dimensions (mm) | 520 x 785 x 640 |
| Number of ways | 1-way | Max SPL | 136 dB |
| Driver diameter | 18" | Socket diameter | 35 mm |
| Power | 1,800 W | Finish | Black |
| Frequency response | 41 - 98 Hz | ||
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Questions frequently asked
What power and SPL level does the QSC KS118 deliver?
The class D amplifier provides 1,800 W, with a peak power of 3,600 W. The maximum specified sound pressure level reaches 136 dB.
What is the frequency response of the subwoofer?
The frequency response ranges from 41 Hz to 98 Hz, with an 18-inch driver.
Can two satellite speakers be connected to the KS118?
The 2 XLR inputs and 2 XLR outputs facilitate integration into a sound system chain. Two 35 mm sockets with M20 threading are provided for mounting poles and satellite speakers. The subwoofer is designed for front-of-house bass reinforcement.
Is the KS118 suitable for clubs and event performances?
This model is intended for clubs, theaters, rehearsal spaces, and event providers seeking bass reinforcement. Its internal DSP allows adapting the system response to the venue's acoustics.
What is the weight of the QSC KS118 and how should it be transported?
Weighing 47 kg and measuring 520 x 785 x 640 mm, this subwoofer features two handles for handling.
