With Low-Frequency Element - L-Acoustics A10 Owner's Manual

Loudspeaker congurations
A10 Wide/Focus line source with low-frequency element
In this conguration, the bandwidth of the A10 system is extended down to 31 Hz and the LF contour is reinforced.
The [KS21_100] preset provides KS21 with an upper frequency limit at 100 Hz.
The A10 Wide/Focus and KS21 enclosures are driven by the LA4X / LA8 / LA12X amplied controllers.
2 A10 Wide/Focus : 1 KS21
reinforced contour
1.7 m / 5.6 ft
Enclosure
Preset
Recommended ratio
Frequency range (-10 dB)
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 1.7 m if the upper frequency limit of the subwoofer system is at 100 Hz.
Delay values
Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Pre-alignment delays
presets
[A10] or [A10_FI] + [KS21_100]
[A10] or [A10_FI] + [KS21_100_C]
[A10] or [A10_FI] + [KS21_100_Cx]
48
max
A10 Wide/Focus
[A10]
1 A10 Wide/Focus : 1 KS21
31 Hz - 20 kHz
pre-alignment delay values and polarity settings
A10 Wide/Focus = 0 ms
A10 Wide/Focus = 5.5 ms
A10 Wide/Focus = 0 ms
1 A10 Wide/Focus : 1 KS21
reinforced contour
+ 2 dB at 100 Hz
KS21
[KS21_100]
KS21 = 0 ms
KS21 = 0 ms
KS21 = 0 ms
A10 owner's manual (EN) version 1.1