L-Acoustics KARA, Owner'S Manual

Page: 31 / 201

Loudspeaker congurations
Kara line source with separated SB18, KS21, SB28, or KS28
3 Kara : 2 SB18 or KS21 / 2 Kara : 1 SB28 or KS28
Enclosure Kara SB18, KS21, SB28 or KS28
Preset [KARA] [xxxx_60]
Frequency range (-10 dB)
32 Hz - 20 kHz with SB18
29 Hz - 20 kHz with KS21
25 Hz - 20 kHz with SB28 or KS28
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.
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.
Delay values
Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Pre-alignment delays
presets pre-alignment delay values and polarity settings
[KARA] + [SB18_60] Kara = 2.5 ms SB18 = 0 ms
[KARA] + [SB18_60_C] Kara = 8 ms SB18 = 0 ms
[KARA] + [SB18_60_Cx] Kara = 6.5 ms SB18 = 0 ms
Kara owner's manual (EN) version 1.0 31