QSC KS212C Powered 3600W Dual 12" Cardioid Subwoofer

QSC KS212C Powered 3600W Dual 12" Cardioid Subwoofer

The KS212C from QSC, is a single-box powered cardioid subwoofer solution for mobile entertainers, AV production and rental professionals, as well as modestly-sized performance venues. The subwoofer features a 3600W Class-D amplifier module that powers two 12", long-excursion drivers in a dual 6th order band-pass design that creates a cardioid polar pattern with -15 dB SPL attenuation front-to-rear. The unit offers a frequency response of 44 to 104 Hz (-6 dB) with a peak SPL of 132 dB (@ 1m).

Typically, subwoofers are omnidirectional, radiating in all directions. This results in a build-up of low frequencies on-stage and wasted LF energy at the rear of the system. Sound engineers found a way to create a cardioid (heart-shaped) polar pattern, which removes much of the low energy at the rear of the subwoofers. Unfortunately, this system required the use of subwoofer arrays with multiple enclosures, clever placement, and processing of delay and polarity to redirect the energy.

The KS212C provides all the benefits of a cardioid subwoofer array, but without the headache of multiple enclosures and outboard processing. The single subwoofer can be deployed in a vertical or horizontal position and features M20 speaker pole fittings in either position, while the 15mm Baltic birch enclosure features a rugged paint designed for long-life and lasting durability. The rear panel offers a LCD control module with variable crossover and savable and recallable scenes, as well as Intrinsic Correction tuning and loudspeaker management. There are two combo XLR-1/4" inputs and two XLR "Pass-Thru" outputs. The KS212C ships with a locking IEC power cord.

Features:

Specs:

• Configuration Dual 6th-order bandpass cardioid subwoofer
• LF Transducer 2 x 12” (305 mm), cone
• Frequency Response (-6 dB) 44 Hz - 104 Hz
• Frequency Range (-10 dB) 39 Hz - 118 Hz
• Nominal Coverage Angle 180˚ Cardioid (15dB rear rejection @ 70Hz)
• Maximum Rated SPL1 132dB @1m, peak
• Amplifier Class D 2 x 1800W (peak)
• Cooling Low-noise, variable speed fan
• Indicators 2 x Power LED (front and rear)
• Input Signal LED 
• Limiter active LED
• Connectors 2 x locking XLR/F ¼” combo
• 2 x XLR/M (Loop-thru Output)
• 1 x locking IEC power connector
• Enclosure 18mm birch plywood
• Grille Internal woofer cover
• Dimensions (HWD) mm 610 mm x 381 mm x 498 mm
• Net Weight 40.1 kg (88.4 lbs)