Sonoro PRIMUS SO-340, Operating Manual, Page: 97 / 336

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© sonoro audio GmbH 2021 97
15. Optical mode
15.1 Operation
Your external player (e.g. audio amplifier) must be connected to the optical
input jack of PRIMUS with an audio cable (with optical connector, not supplied).
To access the
Optical mode,
Press key on the remote control.
Or, press MENU once, then
or (or rotate
the navigation knob) to select the Optical mode
and then press OK to confirm.
To start and control
playback,
Perform all playback operations on the
external player.
To mute or restore
the sound output,
Press or button.
15.2 Setup menu
Press SETUP in the optical input mode to access the setup menu (see chapter
“Using the menus”). The following options are available and the current settings (if
applicable) are marked with an asterisk (*).
• [Bluetooth headphone]
To connect or disconnect with a Bluetooth headphone, see chapter “Basic
operation”.
• [System Settings]
See chapter “System Settings”.
• [Main menu]
To access other playback modes, alarm or sleep timer.
The optical input is only supporting for the linear PCM, 2 channels 16 bit or
24bit music source.