Introduction

The WL218-sw is a dual 18-inch (457mm) subwoofer designed for suspended or ground stacked use in touring or installed concert appli- cations. With an impressive combination of sonic impact, low-frequency extension, and accuracy, the WL218-sw is an ideal companion for QSC's WideLine as well as other professional sound reinforcement systems.

Suspension of WL218-sw subwoofers is easy using the AF218-sw, a heavy-duty array frame constructed of welded 6061-T6 aluminum. In ground-supported applications, the WL218-sw may be stacked using the interlocking feet and recess features machined into the enclo- sure's ends.

The woofers incorporate a double layer spider and triple roll surround for extended and controlled excursion at high power. The 4-inch (102mm) voice coil is wound on a fibreglass former to prevent deformation at high operating temperatures and is extensively vented to reduce power compression. An aluminum demodulating ring is employed for low distortion. Each woofer is housed in a separate chamber to prevent failure of one driver from causing damage to the other. A 14-gauge (1.9mm) powder coated steel grill protects the drivers.

Enclosure construction features premium quality birch plywood finished in an environmentally friendly, water-borne, polymer finish that's tough and field repairable. Extensive internal bracing and exclusive use of birch plywood minimizes acoustic loss due to panel resonance. Ample port area allows air to move freely with minimal turbulence. The ports are arranged so as to eliminate asymmetrical loading of the woofers, further protecting the drivers.

Transport and handling features are also provided in the WL218-sw's design. No matter how the box is deployed, one of the dozen han- dles will be where it needs to be. The included dolly has rugged, 3.5-inch ball bearing casters and an easy-to-use, snap-on mechanism for attachment to the enclosure.

For users of QSC's digital audio transport and processing products, QSControl.net / Basis DSP files tuned for use with WL218-sw are available for download. Visit us at http://www.qscaudio.com for the latest products, and news.

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WL218-sw Loudspeaker

1- Handles

2- Stacking recesses

3- Stacking feet

4- Receiver tubes with ball lock pins & captive articulated joints

5- Dolly board latch plates

6- Grille

7- Skids

8- Serial number plate

9- Rear link and receiver block

10- Input connector plate

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QSC Audio Speaker System, WL218-sw, AF218-SW, 369, DB218-SW user manual Introduction
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Speaker System, AF218-SW, DB218-SW, 369, WL218-sw specifications

QSC Audio is renowned for producing high-quality audio solutions, and their speaker systems, including the 369, DB218-SW, AF218-SW, and WL218-SW, showcase the company’s commitment to delivering exceptional sound performance across various applications.

The QSC 369 model is engineered for versatility and portability, making it ideal for both live sound and installation applications. This three-way loudspeaker features a high-output, low-frequency driver, a mid-range transducer, and a high-frequency compression driver. The 369’s robust construction ensures durability while its exceptional sound clarity and impressive output levels provide an immersive listening experience.

The DB218-SW is a dual 18-inch subwoofer designed to produce deep, powerful bass. It is equipped with advanced driver technology that allows for high SPL (Sound Pressure Level) outputs without distorting audio fidelity. With a built-in crossover and equalization capabilities, the DB218-SW can seamlessly integrate into any sound system, offering flexibility for both mobile and fixed install scenarios.

Similarly, the AF218-SW subwoofer is optimized for high-performance applications. This model also utilizes dual 18-inch drivers to deliver profound low-frequency extension. Its cabinet design incorporates advanced porting techniques, minimizing airflow turbulence and enhancing sound clarity. The AF218-SW is ideal for theaters, concert venues, and sporting events, providing the necessary low-end support to round out a powerful sound system.

The WL218-SW is designed specifically for installations where space is at a premium. This compact subwoofer boasts the same high-performance drivers found in its larger counterparts, ensuring robust low-frequency reproduction. The WL218-SW’s sleek design allows for versatile placement options in various environments, from nightclubs to corporate events.

All these speaker systems are built with QSC’s innovative technologies, such as advanced thermal protection, ensuring reliability even during prolonged use. Their rugged construction contributes to their longevity while maintaining high acoustic performance. Moreover, each model is compatible with QSC amplifiers, allowing users to create a tailored audio experience, whether for live sound applications or permanent installations. Overall, the QSC Audio lineup, including the 369, DB218-SW, AF218-SW, and WL218-SW, reinforces the brand's reputation for supreme audio quality and reliability across diverse settings.
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