Anedio U2 USB Converter
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Connecting the U2 to Your Audio System
When plugging the USB cable into the U2 converter, be
sure to apply sufficient force so that the plug is inserted
promptly without hesitation.
Cables and Connectors
You may bypass the cable between the U2 and the DAC completely
by using the supplied BNC/RCA adapter.
If possible, use an RG-59 (75-ohm) cable with BNC plugs since it is
better at preserving the fidelity of the SPDIF signal than a typical
digital cable with RCA plugs.
If your DAC does not have a BNC digital input, use the supplied
BNC to RCA adapter.
You do not need expensive audiophile digital cables to achieve the
best possible sound. Use ones with: (a) low shield (outer
conductor) resistance; (b) robust mechanical design for reliable
electrical contact. Good quality RG-59 cables with BNC plugs, such
as TPI, can be obtained from many sources.
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Anedio U2 USB Converter
Extending Beyond USB’s 5 m (16 ft) Limit
The maximum length of the USB cable is approximately 5 m (16 ft),
determined by the timing requirement for communication between
the computer and the USB device. This length can be extended
simply by using a long coax cable at the SPDIF output. Our
measurements with RG-59 cables show no degradation in jitter
even with a 7.6 (25 ft) cable, which makes the total length from
computer to the DAC about 12.6 m (41 ft).
Setting up Media Players for Bit-transparent
Playback
The Anedio U2 Converter is a bit-perfect device, passing on the
audio data without any alteration. However, to ensure bit
transparency all the way from music files to the DAC, you still need
to set up the media player software properly.
Please see our website (under “Technology”) for detailed
examples on how to setup media players for your operating
system (Windows 7/Vista, XP, or Mac OS X).
In summary, regardless of the media player you are using, be sure
to:
•
Set the software volume control to the maximum (0.0 dB).
•
Turn off automatic gain adjustments, such as replay gain.
•
Disable all DSP plugins.
•
Ensure that CPU-intensive applications are not running as they
may interrupt the streaming of audio data.
In addition, we recommend the following output mode depending on
the operating system:
•
Windows 7/Vista: WASAPI exclusive
•
Windows XP: ASIO
•
Mac OS X: exclusive access
Again, please see our website (under “Technology”) for detailed
instructions on setting up media players.
