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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)

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)

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.