Featuring an 18-inch direct radiating driver powered by a 3600 Watt Class D amplifier, the KS118 delivers high sound pressure levels with dynamic and musical sound reproduction of very low frequencies.

The KS212C subwoofer keeps "bass in its place" with a single-box cardioid array that produces an amazing 15 dB more output at the front than at the rear

QSC drives innovation in the AV industry with solutions in AI, video & cloud-based control and pro audio.

Does your PA system need a bass infusion? Get the QSC KS118 — it delivers the goods. This 3,600-watt active subwoofer yields extreme output with impressive low-frequency performance. Its 18" long-excursion, direct-radiating driver facilitates exceptional punch while maintaining ample low-end extension.

Along with super-efficient and lightweight Class D amplification and powerful onboard sound processing, QSC power amps were a natural fit for Sweetwater's touring sound-reinforcement professionals.

QSC is proud to introduce the KS118 18" active subwoofer, a revolutionary powered subwoofer designed to bring thunderous bass to any live-sound application. Featuring a 3,600W Class-D amplifier powering an 18" woofer, the KS118 delivers …

Equipped with powerful class D amplification, advanced DSP, high-output transducers and innovative design, KS Series subwoofers offer high performance, flexibility, portability and long-term reliability.

The KW181 is one of QSC's best-selling powered subwoofers. Powered by a Class D amplifier providing 1000W of continuous power, the KW181 pushes out a maximum SPL of 135 dB through it's massive 18-inch speaker.

With legendary QSC reliability and rugged ABS construction, the 10-inch K10.2 powered speaker features new advanced electronics which provides superior acoustic performance for more output with deeper bass and...