The KS212C subwoofer represents the world’s first-in-class single-box active cardioid subwoofer solution for highly portable entertainment and installation applications.

A breakthrough in innovation and design, the 3,600 Watt KS212C subwoofer uniquely provides all the benefits of cardioid deployment in a single, compact enclosure. “Keeping bass in its place” for mobile entertainers, AV production and rental professionals, as well as modestly-sized performance venues, the KS212C subwoofer is unparalleled in its ability to manage low frequencies on the stage, or any application where undesirable low frequency energy needs to be minimized.



  • 3600 Watt Class D power module 

  • Dual 12-inch long excursion drivers; Dual 6th order band-pass design 

  • 15 dB SPL attenuation front-to-rear  

  • Two M20 threaded sockets (one on top, one on side) accept 35 mm speaker pole 

  • Four low-noise, heavy-duty casters 

  • HxWxD = 24.5-inch x 15.5-inch x 33.5-inch (622 x 394 x 851 mm)

  • Net Weight: 40.1 kg (88.5 lbs)

Powered by a 3,600 Watt Class D amplifier, processed with the latest DSP technology, and featuring dual 12-inch long excursion drivers each arranged in a 6th order band pass chamber, these components all combine seamlessly to produce a staggering 15 dB more output at the front of the cabinet than at the rear. Highly portable, the cabinet features comfortable, aluminum handles and four, rear-mounted casters. Two M20 sockets accept a 35 mm loudspeaker pole in either horizontal or vertical orientation.



$1,899.99 Regular Price
$1,599.99Sale Price
    Configuration Dual 6th-order bandpass cardioid subwoofer
    LF Transducer 2 × 305 mm (12 in), 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 × 1800W (peak)
    Cooling Low-noise, variable speed fan
    Controls Power
    Rotary encoder
    2 × selection buttons
    Indicators 2 × Power LED (front and rear)
    Input Signal LED
    Limiter active LED
    Connectors 2 × locking XLR/F ¼⁻ᶦⁿᶜʰ combo
    2 × XLR/M (Loop-thru Output)
    1 × locking IEC power connector
    AC Power Input Universal power supply 100 – 240 VAC, 50 – 60 Hz
    AC Power Consumption 1/8th power
    Enclosure Details
    Enclosure 15mm birch plywood
    Color Black (RAL 9011)
    Grille Internal woofer cover
    Speaker Dimensions (H×W×D) 622 × 394 × 851 mm
    24.5 × 15.5 × 33.5 in
    Carton Dimensions (H×W×D) 970 × 500× 670 mm
    38.2 × 19.7 × 26.4 in
    Net Weight 40.1 kg / 88.5 lb
    Shipping Weight 50 kg / 110.3 lb
    Regulatory CE, WEEE, UL, CHina RoHS, RoHS II, FCC Class B
    Optional Accessories KS212C CVR Transport Cover, KS-LOC Lock-Out Cover
    SP-26 and SP-36 Loudspeaker Poles, SP-16X Extension Pole
Free shipping on ADJ orders over $1600.

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