QSC KC12 System Column Line Array PA

Powered 3-Way Column loudspeaker System

Building on the legacy of the World of K® portfolio, the KC12 is a 3-way, 3000-watt loudspeaker system encompassing the visual aesthetic of a column loudspeaker, while surpassing the acoustic performance of conventional designs. Simple and rapid to deploy, the elegant KC12 is ideal for solo entertainers, musicians and bands, mobile entertainers and DJs, AV productions and static installations.

The highly portable KC12 system consists of a ported subwoofer, housing a 12-inch driver extending down to 40 Hz. The groundbreaking design of the mid/high enclosure features a 1-inch compression driver combined with the innovative QSC LEAF™ (Length-Equalized Acoustic Flare) waveguide, as well as two high-excursion 4-inch midrange drivers. Thanks to this 3-way design, the system provides an outstanding full-range horizontal coverage of 145 degree, and 35 degrees of audience-directed vertical coverage, with clean and natural sound at all output levels.

Configured with or without its column pole, the system is ideally suited for direct deployment on a floor, stage or riser. Available in black and white, the KC12 is backed by an industry-best global 6-Year Extended Warranty, with product registration.

Key Features

• 3-way loudspeaker system featuring a 12-inch (305 mm) subwoofer, two high-excursion 4-inch (102 mm) midrange drivers and a 1-inch (25.4 mm) HF compression driver combined with the proprietary QSC LEAF™ waveguide.
• Very high, undistorted 132 dB maximum peak SPL.
• Energy-efficient Class D amplification featuring 3000 W of total peak power with Power Factor Correction and extremely low AC consumption
• Innovative QSC LEAF™ (Length-Equalized Acoustic Flare) waveguide provides defined, uniform coverage (145° H x 35° V) and excellent throw.
• Two combo XLR inputs (Mic/Line/Hi-Z and Mic/Line/+48 V), with independent, assignable Factory Presets for each input, perfect for small events where two microphones are needed for different use.
• Multi-function digital display for control and selection of loudspeaker functions including Global Parametric EQ, Subwoofer level, Presets and Scenes, Bluetooth® configuration, Delay (200 ms) or Reverb.
• Bluetooth Audio featuring True Wireless Stereo (TWS), which ensures low-latency pairing between music source and both left and right loudspeakers, simultaneously.
• Configured with or without its column pole, the system is ideally suited for direct deployments on a floor, stage or riser.
• Available in black and white finishes.
• Industry-best global 6-Year Extended Warranty with product registration.

Specifications

• Configuration Active 3-Way Column Loudspeaker System
• LF Transducer 305 mm (12-inch), cone
• MF Transducer 2 x 102 mm (4-inch), cone
• HF Transducer 25.4 mm (1-inch), compression driver
• Frequency Response (-6 dB) 45 Hz - 18.5 kHz
• Frequency Range (-10 dB) 40 Hz - 20 kHz
• Nominal Coverage Angle 145° H x 35° V
• Maximum Rated SPL1 (peak) 132 dB @ 1 m
• Amplification (peak) Class D, 3000 W (KC12S Subwoofer 2000 W, KC12T Midrange/High Frequencies 1000 W)
• Cooling Low noise, variable speed fan

Controls

• 1 x Rotary encoder and
• 2 x Push buttons
• 3 x Rotary level potentiometers
• 1 x AC power switch

Indicators

• Monochrome LCD Display 45 x 25.4 mm (1.75 x 1 inch)
• 2 × Power LEDs (blue), Subwoofer front and rear
• 1 x Standby LED (yellow)
• 1 x Limiter LED (red)
• 3 × Input Signal/Clip LEDs (Signal: green / Clipping: red)
• Input A: Mic/Line with assignable Hi-Z selected LED
• Input B: Mic/Line with assignable +48 V selected LED
• Input C: Bluetooth selected LED

Connectors

• 2 × locking XLR/F ¼ inch combo (Mic/Line with assignable Hi-Z and Mic/Line with assignable +48 V)
• 2 × XLR/M (1 x Loop-thru / 1 x Assignable Mix Output Post-DSP)
• 1 × 3.5 mm TRS (Stereo Input)
• 1 x USB-C (Output: 5V/3A)
• 1 × locking IEC power connector
• AC Power Input Universal power supply, 100-240 VAC, 50/60 Hz
• AC Power Consumption2 1100-240 VAC ~ 3.7-1.8 A

System Components

• KC12T 145° Dual 4-inch Column System Loudspeaker
• KC-SP32 32-inch Column System Pole
• KC12S 3kW Active12-inch Column System Subwoofer
• Enclosure Materials Impact resistant ABS, 12 mm birch plywood and powder-coated aluminum
• Color Black (RAL 9011), White (RAL 9010)
• Grille Powder-coated steel with internal cloth lining (KC12T: 21 Gauge / KC12S: 18 Gauge)

System Height

• Tall Deployment: 2270 mm / 89.4 in (with KC-SP32)
• Short Deployment: 1463 mm / 57.6 in (without KC-SP32)

Dimensions (H x W x D)

• KC12T: 890 × 141 × 158 mm / 35 × 5.6 × 6.2 in
• KC-SP32: 881 × 74 × 46 mm / 34.7 × 3 × 1.8 in
• KC12S: 655 × 357 × 455 mm / 25.8 × 14 × 18 in

Net Weight

• Tall Deployment: 27.3 kg / 60.3 lb (with KC-SP32)
• KC12T: 4.0 kg / 8.9 lb
• KC-SP32: 1.3 kg / 2.9 lb
• KC12S: 22.0 kg / 48.5 lb
• Supplied Accessory KC12 TOTE: Tote for transportation/storage of KC12T and KC-SP32
• Accessory KC12 CVR: Cover for KC12S
• Regulatory CE, WEEE, UL, China RoHS, RoHS II, FCC Class B

  What is the QSC KC12?
A: The QSC KC12 is a 3-way powered column loudspeaker system combining a 12-inch subwoofer, dual 4-inch mid drivers, and a 1-inch compression driver. It is designed for DJs, musicians, mobile entertainers, AV events, and installations.

  How much power does it have?
A: It uses 3000W peak Class D amplification:

• 2000W for the subwoofer
• 1000W for the mid/high section.

  Does it have Bluetooth?
A: Yes. It supports Bluetooth audio streaming and True Wireless Stereo (TWS) for pairing two KC12 systems wirelessly in stereo.

  Is it better than EV Evolve systems?
A: Many users report the KC12 has stronger output and clearer sound, though preference depends on venue, bass needs, and budget.

  Can I control it from a phone?
A: Yes. It works with the QSC Loudspeaker Control App, allowing control of settings and Bluetooth-equipped QSC speakers from a smartphone.

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