The QSC KW181 is a rugged, powered 18-inch subwoofer designed for musical, well-controlled low-frequency reinforcement in portable and installed PA systems. Its efficient Class-D amplification and onboard DSP deliver tight, impactful bass with intelligent protection and consistent performance from event to event. Balanced XLR inputs and high-pass outputs streamline integration with QSC full-range tops or mixed-brand systems, while user-selectable crossover points and polarity control speed up setup and tuning across different rooms and rigs.
Built from sturdy birch ply with ergonomic handles and a tough, tour-ready finish, the KW181 is engineered for regular transport and rental use. An M20 threaded pole mount allows secure mounting of a full-range loudspeaker above the sub, creating neat, compact stacks without extra hardware. The result is clean, confident low end that enhances clarity and headroom across live music, DJ sets, corporate presentations and playback.
If you need dependable, space-efficient sub-bass that’s quick to deploy and simple to operate, the KW181 delivers authoritative performance with minimal fuss.
Includes
- QSC KW181 Powered Subwoofer – 18-inch Active PA Sub
STAGE22.1.100.049