Connecting To Other Audio Devices - Fiio X1 User Manual

Q: Why is the X1 sometimes sluggish in responding?
A:
1. High bitrate lossless tracks, particularly 192k/24bit APEs or DSD files, take
more hardware resources to decode, possibly causing slowdowns in the player
UI. You may convert such APEs to FLACs or uncompressed WAVs using
programs such as foobar2000 on the computer first to make it easier on the
player. The sound quality will be the same.
2. Placing too many songs on the X1 may also contribute to slowdowns. Please
limit the number of songs on the X1's micro SD card where possible.
3. Placing non-music related files on X1's micro SD cards, such as videos and
pictures, may cause the X1 to slow down while sifting through them looking for
music files. It is recommended to dedicate the micro SD card on the X1 to
music.
4. Playing high bitrate files or DSD files from slow micro SD card may cause
stuttering. Class 6 or above genuine micro SD cards are recommended.
5. Unpredictable ordering of files, such as placing several .ape and .cue files in
the same directory. The following directory structure is recommended: create
separate folders for albums by the same artist, and open subfolders within each
artist folder to hold single albums in separate subfolders.
6. A mixture of music files of several different codecs and sample rates may
also slow down the player. It is recommended to place files of different codecs
and sample rates into separate folders and to play files of the same type in
sequence from these folders, to prevent the X1 from having to switch between
different decoders frequently.
Q: Why does the X1 get a bit hot in operation?
A:The X1 utilizes an SoC with high clock speed, a separate DAC, and (also
separately) a high power headphone amplifier and independent analog volume
control in the amplification stage, thus dissipating way more power than
consumer DAPs typically performing computation, DAC and amplification all on
the SoC. Apart from outputting more power to your headphones, a lot of this
power is also dissipated as heat, thus causing the X1 to heat up slightly in
operation; but this does not endanger the X1 or the listener in any way.

7. Connecting To Other Audio Devices

Q: How do you connect the X1's line output (LO) to other audio devices?
A: The X1's LO is a standard line out that is designed to be connected to
external headphone amplifiers, car audio systems, home theater systems,
powered speakers, etc. The LO provides sound at a very high volume when
either set to a fixed-level output or at the higher levels of the adjustable output
option, which can damage your hearing if you listen to headphones in this
output mode. Please set the output mode to Headphone output before listening
to headphones with the X1.
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