Hybrid" Mode; Description; Connecting Sb118 And Arcs To The La4; Arcs_S118_Lo] And [Arcs_S118_Hi] Presets - L-Acoustics SB118 Manuel D'utilisation

7.4

"HYBRID" mode

7.4.1

Description

The ''HYBRID'' mode consists in driving SB118 enclosures along with ARCS
the same amplified controller, thus limiting the number of required units.
The corresponding presets are available only in the LA4 library.
7.4.2 Connecting SB118 and ARCS
The enclosures connect to the LA4 outputs as follows: channels 1 and 2 are dedicated to both SB118 enclosures, and
channel 3 is dedicated to the first ARCS
®
ARCS enclosure. Therefore, a single LA4 amplified controller can drive up to two SB118 and 2 ARCS
shown in Figure 13.
!
A maximum of one SB118 enclosure can be connected per LA4 output channel.
A maximum of two ARCS
IMPORTANT
Note: The system resources are optimized for two ARCS
IN A
IN B
Figure 13: Two SB118 and two ARCS
7.4.3

[ARCS_S118_LO] and [ARCS_S118_HI] presets

The [ARCS_S118_LO] preset features a standard HF contour.
The [ARCS_S118_HI] preset features an increased HF contour (3dB HF shelving EQ difference versus the LO preset).
In both presets the crossover frequency between the SB118 and the ARCS
The recommended ratio is one SB118 for one ARCS
Activate the LOAD PRESET menu from the LA4 amplified controller front panel and then select the desired preset.
Refer to the ''LA4" user manual for additional instructions. The presets are also accessible using the LA NETWORK
MANAGER software (refer to ''LA NETWORK MANAGER" user manual). The following table shows the
parameters which are accessible for both presets:
SB118_UM_ML_2.0
®
to the LA4
®
enclosure. The ARCS
®
enclosures can be connected per LA4 output channel.
®
and two SB118.
OUT 2 (IN A)
OUT 1 (IN A)
Note: This figure is a cabling scheme and not an installation configuration.
®
®
.
w w w . l - a c o u s t i c s . c o m
®
, 8XT, or passive 12XT enclosures from
®
enclosure can be paired in parallel with an additional
OUT 3 (IN B)
connected to an LA4 controller
®
low section is 60 Hz.
EN
®
enclosures as
19 en 19 19 19