F.usb Dac Function; Preparation Before Installing Usb Dac Driver - Fiio X5 User Manual

F. USB DAC function

Preparation before installing USB DAC driver

USB DAC driver installation on the computer is required before using the X5 as
a USB DAC with it. Things to prepare before installing the USB DAC driver:
•the computer
•USB cable to connect the computer and the X5 (provided in the X5 package)
•The USB DAC driver (to be downloaded from the FiiO website
(https://www.dropbox.com/s/3kqjgvzu4nuvid2/Driver%20for%20X5%20USB_
DAC.zip)
Precautions
1.For desktop computers, connect the X5 to a USB port on the rear of the case,
not the front. This is because front USB ports on desktop computers are
connected to the motherboard via long unshielded cables. As a result, front USB
ports have low power output, low transfer speeds and are prone to electrical
interference, degrading sound quality or causing crackling / dropouts.
2.When the X5 is decoding 192k/24bit audio via USB, the required data
throughput is huge. A high quality USB cable, with low signal loss and good
shielding, is required. Please use the original USB cable provided with the X5 if
possible. If you need to purchase another cable, please do not buy generic USB
cables (including cables provided with most smartphones), but buy USB-to-
micro-USB cables from a reputable brand supporting the USB2.0 standard.
3.If the X5 doesn't work as a USB DAC after installation of the driver, please try
rebooting the computer.
4.With Windows XP computers, the X5 will not enter the DAC interface before
installation of the driver. This is normal. You may proceed with installing the
driver normally.
5.Known issue: the driver will fail to install on Windows 8 64bit computers. This
is related to the driver signature module. The driver has not been signed for
Windows 8 64bit and will not work while driver signature enforcement is in
effect. Please disable driver signature enforcement as follows:
Mouse over upper right corner of screen->settings->
Change PC settings->General->Advanced->start-up->Restart now->
Troubleshoot->Advanced options->Start-up Settings->Restart
After such a restart, the computer will be able to install unsigned drivers, but
give a warning when this happens (as is the case with installation in XP, Vista,
Windows 7), just click "Install anyway" to proceed.
Please refer to this video for a walkthrough of the process:
http://www.youtube.com/watch?v=NM1MN8QZhnk
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