L-Acoustics LA-RAK User Manual page 30

LA-RAK
TOURING RACK
user manual
VERSION 2.0
6.6.2 External cabling
With analog audio, external cabling uses a constant scheme that allows feeding a LA-RAK, or a LA-RAK daisy-chain, with
up to 6 signals. For any LA-RAK, the internal cabling (see [6.6.1]) determines how many channels are used, which ones,
and which amplifier receives them.
With L-ACOUSTICS ® modulation cables (see Table 2), six audio signals can be routed from an analog audio source
(mixing console or EQ device) to the SIGNAL INPUT connector (19-point PA-COM
RAK.
An LA-RAK daisy-chain layout can then be set up by cabling the SIGNAL OUTPUT connector of the LA-PANEL with
the SIGNAL INPUT connector located on the LA-PANEL of another LA-RAK.
The six analog audio signals can also be routed from the last LA-RAK to other signal processing devices using the
DOMM cable.
Cascading several LA-RAK cause losses in the analog signal. The losses increase in line with the number of
LA-RAK and the console output impedance. Typically, cascading 16 LA-RAK will cause a -1 dB loss with a
50 Ω console and a -3 dB loss with a 150 Ω console.
IMPORTANT
Cable reference
DOMF 6 x balanced female XLR
DOMM 19- point female PA-COM
DOM2 19- point female PA-COM
DOM30 19- point female PA-COM
DOM45 19- point female PA-COM
DOMP-2 19- point male PA-COM
The Figure 23 shows the external analog audio cabling principle including all available L-ACOUSTICS
cables.
LARAK_UM_EN_2.0
Table 2: L-ACOUSTICS
Input connector(s)
with ring
®
with ring
®
® with ring
® with ring
®
DOMF
DOM2
DOM30
Figure 22: L-ACOUSTICS
w w w . l - a c o u s t i c s . c o m
® ) on the LA-PANEL of a first LA-
modulation cables
®
Output connector(s)
19-point female PA-COM
®
6 x balanced male XLR
19- point female PA-COM
®
19- point female PA-COM ®
19- point female PA-COM ®
19- point male PA-COM
DOMM
DOMP-2
DOM45
modulation cables
®
Length (m / ft)
with ring 1.5 / 5
1.5 / 5
with ring 2 / 6.5
with ring 30 / 100
with ring 45 / 150
® 0.5 / 1.5
modulation
®
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