User's Manual

ASUS Xonar Essence STU

Rear Panel

1. Headphone Gain Selection

Toggle the switch to change between low or high headphone gain settings.

NOTE: If you have a low impedance headset/headphone, please do not switch

to high gain setting. When switching between high and low gain settings, please

remove the connected headphones/headset before proceeding.

2. Unbalanced RCA Output (line-out)

Conventional stereo outputs for connection to the line-level phono/RCA inputs of a

speaker.

3. Aux In

Connect iDevices such as iPhone, iPod, or iPad into this port.

4. Toslink Optical Input

This port is for Toslink Optical Input.

5. Coaxial S/PDIF Input

Connect your digital source, such as CD/DVD players or computer with S/PDIF output, to

digital input. Use either S/PDIF coaxial or Toslink optical type, each being of equal quality.

NOTE: This unit only accepts two-channel LPCM digital audio (e.g. Dolby Digital

2.0). You cannot connect a Dolby Digital 5.1 or a DTS signal as they will not be

recognized. If you wish to connect a DVD or similar device, please ensure that the

sound output of your player is set to two-channel PCM.

HP GAIN R L AUX IN TOSLINK COAXIAL

DIGITAL INFUT

USB DC IN