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ASUS Xonar Essence STX
4 Line In port
Connect analog devices like MP3 players, CD players,
music synthesizers and other line-level sound sources to
this 6.3mm port for audio recording or processing. (Through
Ultra-high delity 118dB SNR A-D converter)
5 S/PDIF Out port
Coaxial and optical TOSLINK combo digital output port.
Connects to external digital decoder or digital speaker
systems, Home Theater systems, AV receivers for outputting
digital audio including PCM, Dolby Digital, DTS, WMA-Pro,
etc.
6 Front panel audio
header
Connect one end of the front panel audio cable to the front
panel audio header on the Xonar Essence STX card, with
the other end to the chassis-mounted front panel audio I/O
module.
7 Aux Input Header
Usually connects to the Analog Audio output of TV tuner card
or other sound source inside your PC system. (To monitor
your TV tuner card’s audio from this Aux-In, you must enable
the “monitor” function for Aux-In in the Xonar Essence STX
Audio Center’s recording mixer.)
8 Power connector
Connects to the power cable of your power supply unit.
9 S/PDIF Out header
Connects to a graphics card with HDMI output.
NOTE: When using Dolby Digital Live on S/PDIF output,
make sure the connected graphics card is capable of
decoding DDL; otherwise, there will be no audio output from
the graphics card’s HDMI port.