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d&b KSL8 loudspeaker

The d&b KSL8 loudspeaker is a medium to large format 3-way line array loudspeaker.

Description

The d&b KSL8 loudspeaker line array module produces an 80° constant directivity dispersion pattern in the horizontal plane over the entire operating bandwidth. The KSL8 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 waveshaping device. SL-Series flying hardware comes with a patented 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 KSL8 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.

  • 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 80°
  • SPLmax 145 dB
  • Weight 58 kg / 128 lbs
  • Article number Z0780

Amplifiers

The d&b D80 amplifier is required to drive the KSL8. The 2-Way active KSL8 requires two channels of the D80.

System data
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 – 145 dB
Cabinets per D80 (ArrayProcessing) – 2
Cabinets per D80 (Line or Arc mode) – 4

Loudspeaker data

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) – 80 °
Splay angle settings – 0 … 10° (1° increment)

Components

– 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
Connections
– 2 x NLT4 F/M
Dimensions / weight
Dimensions (H x W x D)
330 x 1000 x 597 mm
13 x 39.4 x 23.5″
Weight
58 kg
128 lb

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