L-Acoustics K Series, Owner'S Manual

Page: 38 / 120

Loudspeaker congurations
Line source with low-frequency element
A K3 line source can be deployed with additional subwoofer enclosures to extend the bandwidth in the low-end or
increase sub-low resources.
The [K3 70], [K3 90], and [K3 110] presets allow for a reference frequency response in long throw applications. Each
preset is dedicated to a horizontal directivity setting.
The [xxxx_60] presets provides the subwoofers with an upper frequency limit at 60 Hz in separated or coupled
conguration for an optimal frequency coupling with the K3 line source.
Amplied controllers compatibility
LA4X LA8 LA12X
K3
✓ ✓ ✓
KS28 — —
✓
KS21 —
✓ ✓
K3 line source with coupled KS28 or KS21
2 K3 : 1 KS28 / 3 K3 : 2 KS21
*
0.5 to 1 m
(1.6 to 3.2 ft)
Enclosure K3 KS28 or KS21
Preset
[K3 70] [K3 90] [K3 110] [xxxx_60]
Frequency range (-10 dB)
25 Hz - 20 kHz
29 Hz - 20 kHz
Grouping subwoofers
Place the subwoofer enclosures side by side. If not possible, the maximum distance between two adjacent
acoustic centers must be 2.8 m or 1.7 m if the upper frequency limit of the subwoofer system is at 60 Hz or
100 Hz, respectively.
Use [xxxx_xx_C] or [xxxx_xx_Cx] on a reversed subwoofer in a cardioid conguration
The cardioid conguration consists in reversing 1 element in an array of 4 subwoofers.
Refer to the subwoofer owner's manual and to the
Cardioid congurations
technical bulletin.
*
KS21 cannot be mechanically coupled with a K3 line source in an array. The KS21 and K3 arrays must be own
independently. Refer to the
KS21 owner's manual
for more information on how to set up a KS21array.
38 K3 owner's manual (EN) version 1.0