Loudspeakers

Subs

LOUDSPEAKERS

KSL8

KSL12

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The KSL8 and KSL12 line array modules produce, respectively, 80° and 120° constant directivity dispersion patterns in the horizontal plane over the entire operating bandwidth. Both cabinets share the same driver configuration, housing 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 a 8" driver and two 1.4" exit HF compression drivers with 3" voice coils mounted to a wave shaping device.


The KSL System flying hardware has a patented workflow with integrated tension and compression rigging modes, allowing splay angles 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.


The component geometry provides consistent, accurate horizontal dispersion control, which the front and side firing LF driver arrangement maintains seamlessly down to the lowest frequencies produced. Expanding flexibility for applications where ArrayProcessing is not required, the KSL8 and KSL12 include the option to link two cabinets in Arc/Line modes.


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.


ksl8 loudspeaker d&b audiotechnik
ksl8 loudspeaker d&b audiotechnik back

SYSTEM DATA KSL8 • KSL12

Frequency response (-5 dB standard)

54 Hz - 18 kHz

Frequency response (–5 dB CUT mode)

75 Hz - 18 kHz

Max. sound pressure (1 m, free field) with D80

145 dB2 • 144 dB2

Cabinets per D80 (2-Way Active)

2

Cabinets per D80 (in Line or Arc mode)

4

LOUDSPEAKER DATA KSL8 • KSL12

Nominal impedance front LF

8 ohms

Nominal impedance side LF/MF/HF

8 ohms

Power handling capacity front LF (RMS/peak 10 ms)

450/1800W

Power handling capacity side LF/MF/HF (RMS/peak 10 ms)

250/1000W

Nominal dispersion angle (horizontal)

80° • 120°

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

Connections

2 x NLT4 F/M

Weight

58 kg (128 lb)

SUBS

SL GSUB

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SL-GSUB subwoofer

The SL-GSUB shares the same width as the GSL8 and GSL12 loudspeakers and is for ground stack use only.


The bass-reflex design uses three 21" high excursion drivers, one of which radiates to the rear to produce cardioid subwoofer performance, avoiding unwanted energy behind the system. The SL-GSUB extends the bandwidth of a GSL System down to 30 Hz, increases headroom and can be deployed in conventional left and right ground stacked setups.

SYSTEM DATA SL-GSUB

Frequency response (-5 dB standard)

33 Hz - 84 Hz

Frequency response (–5 dB INFRA mode)

30 Hz - 65 Hz

Max. sound pressure (1 m, free field) with D80

144 dB1

LOUDSPEAKER DATA SL-GSUB

Nominal impedance front/rear

3/ 6 ohms

Power handling capacity front (RMS/peak 10 ms)

1000/ 4000

Power handling capacity rear (RMS/peak 10 ms)

500/2000 W

Components

3 x 21" driver

Connections

2 x NLT4 F

Weight

132 kg (291 lb)

SB 218

SB218 subwoofer L acoustics

The L-ACOUSTICS® SB218 is the companion subwoofer for V-DOSC® or ARCS® and features two, front-loaded 18-inch transducers loaded in an optimally-sized and tuned vented enclosure. With power handling capacity of 1100 Wrms (4400 Wpeak) and response to 25 Hz, the SB218 is ideal for applications requiring maximum low frequency extension and impact.


The SB218 provides unparal-leled low end punch and bass articulation combined with high power handling and efficiency. Due to its compact design and critically damped tuning, multiple SB218 enclosures couple effectively while providing the bass definition and musicality that only a front loaded subwoofer can provide.


Due to its 200 Hz bandwidth capability and complementary phase characteristics, optimum coupling and maximum low end efficiency are obtained when the SB218 is used with V-DOSC. The SB218 is unique in that it can be flown in column arrays up to 8 enclosures deep. When flown, low frequency directivity control is provided and optimum low frequency summation is obtained when the SB218 array is closely coupled physically to the V-DOSC array. Ruggedly constructed of 24 mm baltic birch and internally braced with steel corner plates, the SB218 remains free of vibration at extreme sound pressure levels. The compact front dimensions of the SB218 are convenient for use under stages or along stage fronts in either vertical or horizontal (single or double row) orientations. With advanced electronic arc processing, directivity control is obtained when the SB218 is used in ground-stacked horizontal line array configurations.

FREQUENCY RESPONSE SB218

Frequency response (±3 dB)

28 Hz - 140 Hz

Usable Low Frequency (–10 dB)

25 Hz

Sensitivity (2.83 Vrms @ 1m) 

100.5 dB SPL 

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