Usb Charging; Aux Audio Inputs; Optical Audio Input; Headphones - RuarkAudio R4 mk3 Guia Del Usuario

USB charging

To charge your USB device, connect it to the USB
socket on the back using a suitable USB cable.
Your R4 will charge most smartphones including
iPhones and most Android and Windows phones but is
not compatible with Apple iPad, iPad mini or any other
device that requires a charger with an output greater
than 5W (5V 1A).

Aux audio inputs

Listen to an external audio device such as a portable
music player using a 3.5mm stereo jack cable
connected to the Front Aux socket, or a phono (RCA)
cable connected to the Rear Aux. For optimum playback
quality, we recommended you set the volume of the
auxiliary device to approximately three quarters.
Press SOURCE and rotate the CONTROL KNOB or
repeatedly press SOURCE until Front Aux or Rear Aux is
displayed, then press the control knob to select it.

Optical audio input

Connect your optical cable to the optical input on
the back of your R4. Press SOURCE and rotate the
CONTROL KNOB or repeatedly press SOURCE until
Optical is displayed, then press the knob to select it.
Audio input level
If playback from the Aux or Optical inputs is too low or
high relative to other sources you can adjust the input
level by selecting MENU > Input level.

Headphones

Connect your headphones to the 3.5mm stereo jack
socket (on the front of your R4.
Headphone volume is adjusted independently from
speaker volume, so when headphones are plugged in
the volume is shown as Volume (HP).

Line out

The stereo audio output allows you to connect your R4
to other audio devices via the phono (RCA) sockets on
the back panel. This is a line level output so the volume
is controlled via the external device.
NOTE: If the audio input level is too high the sound may
distort and if it's too low the playback volume may be too
low relative to other sources. Either adjust the volume on
your audio device or the input level on your R4.
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