QSC KS212C 3600W Dual 12" Active Cardioid Subwoofer

The QSC KS212C is a high-performance, powered cardioid subwoofer engineered for professional portable and installed sound applications. Designed as a single-box cardioid solution, the KS212C offers powerful low-frequency reproduction while minimizing unwanted energy behind the enclosure—making it ideal for mobile entertainers, AV production, rental companies, and performance venues. Its 3600W Class D amplifier drives dual 12" long-excursion drivers in a dual 6th-order band-pass design, delivering impressive output with controlled directivity. Rugged and portable, it includes dual pole sockets, heavy-duty casters, and an 18mm birch plywood enclosure for reliable use in demanding environments.

Features:
3600W peak Class D power module
Dual 12" long-excursion drivers
Dual 6th-order band-pass cardioid design
15 dB SPL attenuation from front to rear at 70 Hz
Compact, single-box cardioid solution
Two M20 threaded pole sockets (top and side)
Four heavy-duty, low-noise casters for mobility
Universal power supply for global compatibility

Specifications:
Configuration: Dual 6th-order band-pass cardioid subwoofer
LF Transducer: 2 × 12" (305 mm) cone drivers
Frequency Response (-6 dB): 44 Hz – 104 Hz
Frequency Response (-10 dB): 39 Hz – 118 Hz
Nominal Coverage Angle: 180° cardioid (15 dB rear rejection @ 70 Hz)
Maximum SPL: 132 dB @ 1 m, peak
Amplifier Type: Class D
Amplifier Power: 2 × 1800W (peak)
Cooling: Low-noise, variable-speed fan
User Controls: Power, Gain, Rotary encoder, 2 selection buttons
Indicators: Power (front and rear), Input signal, Limiter active
Inputs: 2 × locking XLR/F ¼” combo jacks
Outputs: 2 × XLR/M loop-thru
Power Connector: Locking IEC
AC Power Input: 100 – 240 VAC, 50/60 Hz (universal)
Power Consumption (1/8th power): As specified by manufacturer
Enclosure Material: 18 mm birch plywood
Grille: Internal woofer cover
Finish: Black (RAL 9011)
Dimensions (H × W × D): 622 × 394 × 851 mm
Net Weight: 40.1 kg (88.5 lbs)

Optional Accessories:
KS212C Cover
KS-LOC Lock-Out Cover
SP-16X Extension Pole