LA4X
Amplified Controller
user manual
VERSION 4.0
LA4X_UM_EN_4.0
w w w . l - a c o u s t i c s . c o m
16
3.4
Audio and network cabling
3.4.1
Connection panels
The LA4X rear side features three panels for audio and network cabling, see Figure 7:
SPEAKER to connect loudspeakers.
SIGNAL to connect analog and/or digital (AES/EBU or S/PDIF) audio sources and link the signals to another
amplified controller.
L-NET to connect to a network and be remote controlled from LA NETWORK MANAGER software.
Figure 7: LA4X audio and network connection panels
The XLR connectors of the SIGNAL panel can transport analog or digital signals depending on the input mode selected
by the user for channel pairs AB and CD (the two selections can be different). The devices to connect to the IN
connectors are given in the following table (see also section 4.9.1 for input mode selection):
Table 3: Devices to connect to the IN connectors vs. input mode
Input mode AB
IN A (IN A&B)
IN B
ANALOG
analog audio source (1 channel)
analog audio source (1 channel)
AES/EBU
digital audio source (2 channels)
not used
Input mode CD
IN C (IN C&D)
IN D
ANALOG
analog audio source (1 channel)
analog audio source (1 channel)
AES/EBU
digital audio source (2 channels)
not used
Each LINK connector is wired to the corresponding IN connector and, thus, transports the same type of signal.
Digital audio source specifications
Standard
AES/EBU (AES3) or coaxial S/PDIF (IEC 60958 Type II)
Sampling frequency 44.1, 48, 64, 88.2, 96, 128, 176.4 or 192 kHz
Word length
16, 18, 20 or 24 bits.
