- Amplifiers
- Beatmachines
- Cables & Wiring
- Cartridges
- Cases & Racks
- CD Players
- CD Recorders
- Compressors
- Crossovers
- Decksaver
- Digital DJ Gear
- DJ Tools
- Equalizers
- Headphones
- Installation
- Karaoke
- Keyboards
- Microphones
- MIDI Controllers
- Mixers
- Needles
- Packages
- Photo Booth
- Power Conditioners
- Production Packs
- Samplers
- Slipmats
- Software
- Software Controllers
- Sonic Maximizers
- Sound Cards
- Sound Effects
- Speakers
- Turntables
- Video Gear
- New Arrivals
- Blog
Home › DJ Speakers › QSC DJ Speakers › QSC KS212C Dual 12" Cardioid Powered Subwoofer
QSC KS212C Dual 12" Cardioid Powered Subwoofer
Regular Price $4399.99
Our Price $2199.99
WARRANTY SPECIAL
TWO YEAR FULL WARRANTY. ONLY $53.5 A YEAR FOR FULL PIECE OF MIND. ENJOY YOUR EQUIPMENT WITHOUT WORRY. PLAY WITH IT AND IF ANYTHING IS WRONG, IT WILL BE FIXED. Details
Regular Price $199.99
Full Protection Only $107.00Regular Price $4399.99
Our Price $2199.99 TWO YEAR FULL WARRANTY. ONLY $53.5 A YEAR FOR FULL PIECE OF MIND. ENJOY YOUR EQUIPMENT WITHOUT WORRY. PLAY WITH IT AND IF ANYTHING IS WRONG, IT WILL BE FIXED. Details
Regular Price $199.99
Full Protection Only $107.00
QSC KS212C Dual 12" Cardioid Powered Subwoofer
The KS212C subwoofer represents the world's first-in-class single-box powered 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.
Features
- 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" x 15.5" x 33.5" (622 x 394 x 851 mm)
- 88.5 lbs (40.1 kg)
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 bandpass 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 35mm speaker pole in other horizontal or vertical orientation.
Specification
- 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
- Controls: Power
Gain
Rotary encoder
2 x selection buttons - 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 - AC Power Input Universal power supply 100 - 240 VAC, 50 - 60 Hz
- AC Power Consumption 1/8th power
Enclosure Details
- Enclosure 18mm birch plywood
- Color Black (RAL 9011)
- Grille Internal woofer cover
- Dimensions (HWD) inches 24.5" x 15.5" x 33.5"
- Dimensions (HWD) mm 622 mm x 394 mm x 851 mm
- Net Weight 40.1 kg (88.5 lbs)
- Shipping Weight TBD
- Regulatory CE, WEEE, UL, CHina RoHS, RoHS II, FCC Class B
- Optional Accessories KS212C Cover, KS-LOC Lock-Out Cover
- SP-16X Extension Pole
What is the power output of the QSC KS212C?
A: The KS212C is powered by a 3600W Class-D amplifier, delivering strong low-frequency output with advanced DSP processing.
What makes the KS212C different from other subwoofers?
A: It is the world’s first single-box cardioid subwoofer, meaning it controls bass direction without needing multiple subs.
What is cardioid technology in the KS212C?
A: Cardioid design:
- Focuses bass forward toward the audience
- Reduces bass behind the sub (rear rejection ~15 dB)
- Improves stage clarity
What are the speaker components inside the KS212C?
A:
- Dual 12-inch long-excursion drivers
- Dual 6th-order bandpass design
Does it require an external amplifier?
A: No. It is a fully powered (active) subwoofer with built-in amplification and DSP.
Why Buy from 123DJ?
- Wide Selection & Inventory
Our stock a large range of DJ gear - DJ controllers, mixers, DJ speakers, lighting, cables, and accessories - all in one place, which makes it easy to compare and choose. - Authorized Dealer & Manufacturer Warranty
123DJ is an authorized dealer, many of the products we sell are backed by manufacturer warranties and rebates - something you won't get when buying from unauthorized sellers online. - Competitive Pricing
123DJ claims to buy gear directly in volume from manufacturers and passes savings on to customers, which can make prices attractive compared with some competitors. - In-Person Showroom Experience
123DJ is the premier location for all DJ equipment in Chicago. Our massive warehouse is open to the public, and is simply teeming with anything a DJ could want. The Chicago showroom allows DJs to see and test equipment before buying, with staff available to answer questions and offer hands-on guidance.
CONTACT US - BEAT A PRICE - GEAR RENTAL - TRACK YOUR PACKAGE - RETURNS / WARRANTY INFO ABOUT US - SHIPPING INFO - PURCHASE ORDERS - CUSTOM INSTALLATION - PRIVACY AND TERMS- BLOG
- Beacons
- Black Lights
- Bubble Machines
- Centerpiece Effects
- Clamps
- Flame Lights
- Fog Machines
- Fog Juice
- Follow Spots
- Gobo Projectors
- Intelligent Lighting
- Light Bags
- LED Lights
- Lasers
- Lighting Controllers
- Light Packages
- Mirror Balls
- Par Cans
- Party Accessories
- Pinspots
- Rope Lights
- Spare Bulbs
- Spark Machines
- Stands & Trussing
- Strobe Lights
If you don't see it, it doesn't mean we don't have it. If you are interested in a certain product, but don't see it on our website, please call us or e-mail us!
*All products subject to available stock.
Copyright © 2026 by www.123DJ.com