RuarkAudio R1 mk4 Guia De Inicio Rapido página 17

Line in
Listen to an external audio device using a 3.5mm
stereo jack cable connected to the Line in socket on
the back of your R1.
Input level
MENU > Input level
Adjust the input level and choose the highest level
that does not distort - if it distorts, turn down the
input level.
1 - Devices with high output level, eg CD some players
2 - Most devices
3 - Devices with low output, eg some smartphones
If your external audio source has a volume control
you may need to adjust it for best performance. If
it's too high the sound may distort; if it's too low the
playback volume may be too low and lack bass.
USB
Your R1 plays MP3/AAC/FLAC/WAV/WMA audio tracks
stored on a USB C flash drive. Simply plug it into the
USB socket on the back and change the source to
USB.
Playback is automatically shuffled.
Press or to skip to the previous or next track
and press to pause playback or restart a track.
If a USB flash drive is not detected, it will show
"No device".
Your R1 has a 5W, 1.0A USB power output and will
charge most devices but it may not charge devices
that require more than 5W.
Headphones
Connect your headphones to the 3.5mm stereo jack
socket on the back of your R1.
Headphone volume is adjusted independently from
the speaker volume, so when headphones are
plugged in the volume is shown as "Volume ".