QSC KS118-UK 3600W Active 18-Inch Subwoofer – Powerful Bass

QSC KS118-UK 3600W Active 18-Inch Subwoofer

The QSC KS118-UK 3600W Active 18-Inch Subwoofer is a premium high-performance powered subwoofer designed to deliver exceptionally deep, tight, and impactful low-frequency reinforcement for professional sound applications. Built with QSC’s renowned engineering expertise, the KS118 combines a powerful 18-inch long-excursion woofer with an advanced Class-D amplifier capable of producing an impressive 3600 Watts Peak Power, making it the perfect choice for live concerts, touring productions, houses of worship, theaters, event venues, clubs, rental companies, corporate events, and mobile DJs.

Designed for demanding audio professionals, the QSC KS118-UK 3600W Active 18-Inch Subwoofer delivers outstanding bass performance with remarkable clarity, efficiency, and reliability. Whether you’re reinforcing live vocals, full bands, orchestras, DJs, or conference presentations requiring powerful low-frequency support, the KS118 ensures consistent performance and exceptional sound quality.

At the heart of the QSC KS118-UK 3600W Active 18-Inch Subwoofer is a custom-designed 18-inch high-powered woofer featuring a long-excursion voice coil that produces deep, musical bass while maintaining excellent transient response. Combined with QSC’s sophisticated DSP technology, users benefit from optimized crossover settings, selectable presets, delay functions, polarity inversion, and advanced speaker protection.

The integrated 3600W Peak Class-D amplifier provides enormous headroom while maintaining high efficiency and reduced power consumption compared to conventional amplifier technologies. Intelligent thermal management and comprehensive limiter protection ensure reliable operation even during extended high-output performances.

One of the standout features of the QSC KS118-UK 3600W Active 18-Inch Subwoofer is its professional DSP engine, which allows users to easily configure system settings through an intuitive rear-panel LCD display. Users can select crossover frequencies, delay alignment, cardioid configuration, scenes, and various presets optimized for different applications.

The QSC KS118-UK 3600W Active 18-Inch Subwoofer also supports cardioid subwoofer deployment, significantly reducing unwanted bass energy behind the subwoofer. This is particularly beneficial for stages, houses of worship, corporate events, and installations where minimizing low-frequency spill is important.

Constructed using premium birch plywood with an attractive and durable textured finish, the enclosure is engineered for both touring durability and permanent installation. Heavy-duty steel grilles protect the driver while ergonomic handles allow convenient transportation between venues.

Despite its substantial output capability, the QSC KS118-UK 3600W Active 18-Inch Subwoofer remains remarkably easy to deploy thanks to integrated M20 threaded pole mounts, allowing direct mounting of full-range loudspeakers such as the QSC K Series, KW Series, KC Series, and LA Series.

Connectivity includes professional XLR balanced inputs and outputs, making integration with mixers, digital consoles, DSP processors, and powered loudspeakers simple and efficient.

The KS118 pairs exceptionally well with: QSC LA108 Line Array, QSC LA112 Line Array, QSC K8.2, QSC K10.2, QSC K12.2, QSC KW122, QSC KW152, QSC KC12, QSC CP Series

Whether deployed as a single subwoofer for intimate performances or multiple units for large-scale concerts, the KS118 delivers outstanding scalability while maintaining excellent phase coherence and low-frequency extension.

The QSC KS118-UK 3600W Active 18-Inch Subwoofer is engineered to reproduce frequencies down to approximately 41 Hz, allowing audiences to experience deep, powerful bass without sacrificing musical accuracy. Its high maximum SPL ensures effortless performance even in demanding environments.

QSC’s reputation for reliability is evident throughout the QSC KS118-UK 3600W Active 18-Inch Subwoofer design, incorporating premium electronic components, advanced protection circuitry, precision DSP tuning, and robust mechanical construction. The result is a powered subwoofer capable of years of dependable service under rigorous professional use.

If you’re seeking exceptional bass performance, effortless setup, outstanding reliability, and premium audio quality, the QSC KS118-UK 3600W Active 18-Inch Subwoofer is one of the industry’s most trusted professional low-frequency reinforcement solutions. It is an outstanding investment for sound engineers, rental companies, production houses, installers, and musicians who demand uncompromising performance for every event.

Explore our full range of  Active Subwoofers

Features

• 3600W Peak Class-D Power Amplifier
• High-performance 18-inch long-excursion woofer
• Deep bass extension down to approximately 41 Hz
• Professional DSP with LCD interface
• Cardioid deployment mode
• Adjustable crossover settings
• Delay alignment function
• Polarity inversion
• Multiple factory presets
• Intelligent thermal management
• Comprehensive driver protection
• Heavy-duty birch plywood enclosure
• Touring-grade textured finish
• Steel protective grille
• Ergonomic carrying handles
• M20 threaded speaker pole socket
• XLR balanced inputs and outputs
• High maximum SPL
• Optimized for QSC K Series and LA Series speakers
• Suitable for indoor and outdoor professional applications

Specifications

Download the Technical Datasheet – QSC KS118

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