X12 With Sb18 - L-Acoustics X12 Owner's Manual

Loudspeaker congurations

X12 with SB18

With SB18, the X12 system contour is reinforced by 4 dB at 60 Hz and 5 dB at 100 Hz, and the system bandwidth is
extended down to 32 Hz.
Values and ratios are the same for SB18 IIi.
Frequency range (-10 dB) 32 Hz - 20 kHz
Enclosure ratio 1 X12 : 1 SB18
Delay values
Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Pre-alignment delays
presets
[X12_MO] + [SB18_100]
[xx_MO] presets for the X series use the amplied controller low latency operating mode. When used along with
subwoofers, it is recommended to use the subwoofers in low latency operating mode. To achieve this, create
custom presets combining low latency channel sets and subwoofer channel sets.
If the subwoofers are driven from a dedicated amplied controller using a subwoofer factory preset, they are
operated in normal latency mode. Therefore, an additional delay should be set to the [xx_MO] low latency
channels to align them: 2.66 ms on LA8 or 3.00 ms on LA4X and LA12X.
32
35°
Enclosure X12
Preset [X12_MO]
pre-alignment delay values and polarity settings
X12 = 0.6 ms
55°
SB18
[SB18_100]
SB18 = 0 ms
X12 owner's manual (EN) version 1.0