Want to push some serious air? With 1000 watts continuous and 2000 watts peak power handling, the QWC KW181 is a seriously powerful subwoofer. Like its QSC KW series siblings, the powered KW181 boasts a machined birch plywood cabinet, aluminum handles, a strong steel grille, and casters that make it easy to move — so you can get the dance floor moving faster. Integrated M10 suspension points make the KW181 ideal for flying, while its threaded pole-mount cup provides a wobble-free connection with the included threaded speaker pole.

Learn more with this video from QSC:

KW Stands for Kilowatt: 1000 Watts of Class D Power

As part of QSC’s robust KW series, the KW181 sub is a powered, active speaker with 1000 watts of lightweight Class D amplification. This sub’s built-in Class D power amp employs QSC’s Guardrail limiter to prevent destructive clipping distortion and speaker cone over-excursion, while a virtually silent internal fan turns on when the amp senses high temperatures — making the KW181 truly robust.

QSC’s Intrinsic Correction Processing

To build a subwoofer that performs equally well across the entire sound field, QSC took dozens of measurements and implemented FIR linear phase filters that adjust the speaker’s frequency response, helping deliver consistent sound over the entire audience.

DEEP Mode: More Bass, Less Distortion

To get impressive bass output from 1000 watts, the KW181 subwoofer has QSC’s proprietary DEEP: Digital Extension and Excursion Processing. Flip the DEEP switch on the back of your sub, and a virtually transparent limiter kicks in to increase the average output of bass frequencies. Much more than just a low-frequency EQ boost, DEEP mode employs sophisticated DSP to detect and correct any brief bass transients that could cause clipping distortion or over-excursion of the 18-inch woofer — helping the KW181 to safely pump out frequencies as low as 43 Hz, with a maximum SPL of 132 dB.

Features:

– 1000-watt powered subwoofer (2 x 500-watt Class D amplifiers)
– 1000 watts continuous output, 2000 watts peak
– 18-inch woofer
– Includes fixed-length, M20 threaded speaker pole and pole-mounting cup
– Rugged birch plywood enclosure with textured black paint
– Tour-grade 16-gauge protective steel grille
– Ergonomic steel handles
– Quiet casters
– Reverse polarity switch
– 2 combination XLR-1/4″ TRS line-level inputs
– DEEP switch for additional bass extension
– Auto-standby mode triggers after 5 minutes of inactivity
– Front LED modes: POWER illuminates when the unit is powered on, OFF disables the LED, and LIMIT mode illuminates when the clip-limiter circuit is engaged.
– Remote gain control ready via the Phoenix-style connector; multiple KW181s are daisy-chainable from a single remote pot