Loudspeaker congurations
A15i Wide/Focus line source with low-frequency element
In this conguration, the bandwidth of the A15i system is extended down to 29 Hz and the LF contour is reinforced.
The [KS21_60] preset provides KS21i with an upper frequency limit at 60 Hz.
The A15i Wide/Focus and KS21i enclosures are driven by the LA2Xi / LA4X / LA8 / LA12X amplied controllers.
3 A15i Wide/Focus : 2 KS21i 1 A15i Wide/Focus : 1 KS21i
reinforced contour reinforced contour
+ 3 dB at 55 Hz
max
2.8 m / 9.2 ft
Enclosure A15i Wide/Focus KS21i
Preset [A15] [KS21_60]
Recommended ratio 1 A15i Wide/Focus : 1 KS21i
Frequency range (-10 dB) 29 Hz - 20 kHz
Use [xxxx_xx_C] or [xxxx_xx_Cx] on a reversed subwoofer in a cardioid conguration
The cardioid conguration consists in reversing 1 element in an array of 4 subwoofers.
Refer to the subwoofer owner's manual and to the Cardioid congurations technical bulletin.
Grouping subwoofers
Place the subwoofer enclosures side by side. If not possible, the maximum distance between two adjacent
acoustic centers must be 2.8m or 1.7m if the upper frequency limit of the subwoofer system is at 60Hz or
100Hz, respectively.
Delay values
Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Pre-alignment delays
presets pre-alignment delay values and polarity settings
[A15] or [A15_FI] + [KS21_60] A15 Wide/Focus = 3.5 ms KS21 = 0 ms
[A15] or [A15_FI] + [KS21_60_C] A15 Wide/Focus = 9 ms KS21 = 0 ms
46 A15i owner's manual (EN) version 1.0
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