Operating Modes; Full-Range Mode; Low-Extension Mode - L-Acoustics ARCS Wide User Manual

3 OPERATING MODES

OPERATING MODES
OPERATING MODES OPERATING MODES
3.1

FULL-RANGE mode

In FULL-RANGE mode, the ARCS
It corresponds to the use of ARCS
subwoofers.
®
The ARCS WIDE/FOCUS enclosure is driven by the LA4 or the LA8 amplified controller with a choice of two presets.
®
Single ARCS WIDE / ARCS
Enclosure [PRESET]
WIDE/FOCUS [ARCS_WIFO_FI]
Frequency range (-10dB)
55Hz – 20kHz
3.2

LOW-EXTENSION mode

In LOW-EXTENSION mode, the bandwidth of the ARCS
It corresponds to the use of ARCS
Each enclosure type is driven by the LA4 or LA8 amplified controller with dedicated factory presets. The ARCS
WIDE/FOCUS enclosure is driven with the same presets as in the standalone configuration. The SB18m subwoofer is
driven with a preset featuring an upper frequency limit at 60 Hz, for an optimal acoustic coupling with the line source.
Single enclosure + SB18m
Recommended ratio
1 WIDE/FOCUS : 1 SB18m
Frequency range (-10dB)
32Hz – 20kHz
Enclosure [PRESET]
WIDE/FOCUS [ARCS_WIFO_FI]
SB18m
[SB18_60]
Delay settings
When combining a line source with subwoofers, delays may have to be added to the presets. Refer to the
LA8 PRESET LIBRARY user manual to obtain the pre-alignment delay values.
Use [SB18_60_C] with an SB18m array in cardioid configuration
The cardioid configuration consists in reversing 1 element in an array of 4 subwoofers.
Refer to the SB18 user manual for details about the CARDIOID mode.
ARCSWIFO_UM_EN_1-0
®
WIDE/FOCUS SYSTEM operates within the nominal bandwidth of the enclosure.
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WIDE/FOCUS enclosure(s) in standalone configuration, i.e. without complementary
®
FOCUS Standalone ARCS
Horizontal
®
WIDE/FOCUS SYSTEM is extended in the low end.
®
WIDE/FOCUS enclosure(s) in combination with the SB18m subwoofer.
Flown horizontal
with ground-
stacked SB18m
w w w . l - a c o u s t i c s . c o m
® ®
WIDE / ARCS FOCUS line source
Enclosure
WIDE/FOCUS
Frequency range (-10dB)
55Hz – 20kHz
Vertical
Line source + SB18m
Recommended ratio
1 WIDE/FOCUS : 1 SB18m
Frequency range (-10dB)
32Hz – 20kHz
Mixed
array
Enclosure
WIDE/FOCUS
SB18m
[PRESET]
[ARCS_WIFO]
®
[PRESET]
[ARCS_WIFO]
[SB18_60]
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