QSC KS212C K Cardioid Dual 12" Powered Subwoofer

Dual 12" drivers produce 15dB more output in front than behind the enclosure.

This groundbreaking subwoofer is the world’s first single-box, powered cardioid sub designed for both mobile and installed applications. Powerful and efficient, the QSC KS212C cardioid subwoofer solves the age-old problem of unwanted, wasted low-frequency energy collecting on stage and at the rear of the sound system. This powerhouse enclosure keeps your bass in its place and away from your stage or DJ booth.Typical subwoofers radiate sound equally in all directions, including behind the enclosure where you don’t need it. Professional sound production companies have been able to combat this problem in recent years with complex, massive arrays of subwoofers in concert settings, changing the usual radial pattern of bass sound into a heart-shaped (cardioid) pattern that projects the lows into the crowd, not onstage. Before the KS212C subwoofer, a cardioid setup was impossible in a mobile setting, much less with a single, portable enclosure.The pounding heartbeat of the KS212C cardioid sub is its potent 3,600W (peak) Class D amplifier, with the latest in DSP technology, driving two 12", long-excursion drivers for chest-thumping bass. Each driver is arranged in a 6th order bandpass chamber, producing an amazing 15dB more output in front than behind the sub.With its robust, wooden enclosure and durable, tour-grade painted finish, the KS212C is built to withstand the rigors of heavy use. It also comes fitted with four low-noise, heavy-duty casters as well as ergonomic aluminum handles for easy transportation. Two M20 sockets provide speaker pole mounting options when the enclosure is upright or horizontal.
Features
Innovative design achieves cardioid sound coveragePowerful Class-D amplification with 3,600W peak outputDual 12" long-excursion driversDual 6th order band-pass design15dB SPL attenuation front-to-rear
Keep your bass out on the dance floor, not behind you—order yours today.
KS212C K Cardioid Dual 12" Powered Subwoofer Specifications:
Speaker Configuration
Active/passive: Active
Type: Subwoofer
LF driver: 2 x 12"
MF driver: Not applicable
HF driver: Not applicable
Power
Amplifier class: D
Wattage: 3,600W (peak)
Mixer/preamp: N
Audio
Frequency response: 44Hz–104Hz
Coverage pattern: Cardioid
Max SPL: 132dB
Inputs
XLR: 2 combo
TRS: Not applicable
TS: Not applicable
RCA: Not applicable
speakON: Not applicable
Outputs
XLR: 2 combo
TRS: Not applicable
TS: Not applicable
RCA: Not applicable
speakON: Not applicable
Enclosure
Cabinet material: Wood
Width: 15"
Height: 24"
Depth: 33"
Weight: 88 lb.