d&b KSL12 loudspeaker

Medium to large format 3-way line array loudspeaker

  • Components LF: 2 x 10″ + 2 x 8″; MF: 1 x 8″; HF: 2 x 1.4″ exit compression driver with 3″ coil Dispersion 120°
  • SPLmax 144 dB
  • Weight 58 kg / 128 lbs


Product description

The KSL12 line array module produces an 120° constant directivity dispersion pattern in the horizontal plane over the entire operating bandwidth. The KSL12 houses two 10″ neodymium forward facing LF drivers and two side firing 8″ neodymium LF drivers. A coaxial mid-high section contains an MF horn with an 8″ driver and two 1.4″ exit, 3″ voice coil HF compression drivers mounted to a dedicated wave shaping device. SL-Series flying hardware comes with a patended workflow with integrated tension and compression rigging modes, allowing splay angles between cabinets from 0° to 10° in 1° increments. The loudspeakers are driven actively by two channels of an appropriate d&b amplifier. One channel powers the 10” LF drivers, the second channel powers all other components, which are passively crossed-over. This component geometry allows for a smooth crossover design with well-defined overlaps between adjacent bands providing consistent, even and very accurate horizontal dispersion. Due to the arrangement of the front and side firing LF drivers, seamless directivity control is maintained from the lowest frequencies the loudspeaker produces to above 18 kHz. Further expanding flexibility and catering for applications where smaller arrays are used and ArrayProcessing is not required, the KSL12 includes the option to link two cabinets in Line or Arc mode. The cabinets are constructed from marine plywood and have an impact and weather protected PCP (Polyurea Cabinet Protection) finish. The front and side panels incorporate rigid metal grills backed by an acoustically transparent and water repellent fabric. Each side panel incorporates a recessed handle, with additional handles provided at the rear.

Technical Specifications

Frequency response (-5 dB standard)
54 Hz – 18 kHz
Frequency response (-5 dB CUT mode)
75 Hz – 18 kHz
Max. sound pressure (1m, free field)1
with D80
144 dB
Cabinets per D80 (ArrayProcessing)
Cabinets per D80 (Line or Arc mode)
Nominal impedance front LF
8 ohms
Nominal impedance side LF/MF/HF
8 ohms
Power handling capacity front LF (RMS/peak 10 ms)
450/1800 W
Power handling capacity side LF/MF/HF (RMS/peak 10 ms)
250/1000 W
Nominal dispersion angle (horizontal)
120 °
Splay angle settings
0 … 10° (1° increment)
2 x 10″ front LF driver
2 x 8″ side LF driver
1 x 8″ MF driver
2 x 1.4″ exit compression driver with 3″ voice coil
Passive crossover network
2 x NLT4 F/M
Dimensions (H x W x D)
330 x 1000 x 597 mm
13 x 39.4 x 23.5″
58 kg
128 lb
Scroll to top