Emotiva XDA-2, Руководство пользователя

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Page 14
XDA-2
Connection and Configuration
Input Connections
Connect one or more digital input sources to the XDA-2.
The AES/EBU, Toslink, and Coax S/PDIF digital inputs accept standard sample rates and
bit depths up to 192k / 24 bits (44.1k, 48k, 88.2k, 96k, 176.4k, 192k, 16 bit and 24 bit).
The USB input on the XDA-2 is intended to be connected to a computer or other USB host
device (not a USB thumb drive or hard drive) and will appear to that device as a
“USB audio device” or “USB speaker” (a “USB sound card”).
When using the XDA-2 with a Windows PC, you will need to install a (free) driver on the PC.
Some newer Apple computers, and some versions of Linux, may be able to connect to the
XDA-2 without a driver (if they have a USB Audio Class 2 driver built in).
Drivers, instructions for installing them, and details about the features and sample rates
supported by each, will be available on the XDA-2 product page of our website.
Note: The XDA-2 is a stereo PCM DAC and only accepts DIGITAL STEREO PCM audio
signals. The XDA-2 CANNOT decode Dolby Digital, DTS audio, or DSD content .
The XDA-2 has no analog audio inputs. If you connect the XDA-2 to a digital output
on a home theater pre/pro, Blu-Ray player, TV set, cable box, or media client, be sure
that the device is set to output stereo PCM digital audio.
Output Connections
The XDA-2 provides both balanced (XLR) and unbalanced (RCA) analog stereo
connections. Both sets of connections are active at the same time, and both are controlled
by the Volume control and Mute function.
Level control is via a precision digitally controlled analog resistor ladder network, which
ensures absolute repeatability and near-perfect channel matching. Because the Volume
control doesn’t reduce bit depth at low volume settings, the XDA-2 is ideal as a purist digital
preamp, and can be connected directly to a power amplifier. If you use the XDA-2 as a
signal source with a separate preamp, you can either leave the Volume on the XDA-2 set
to maximum, or use it to match the output level of the XDA-2 to those of your other analog
devices.
When headphones are plugged into the front panel jack, the main outputs are disabled, and
the Volume buttons on the front panel (and on the remote control) adjust the headphone
output level. When no headphones are plugged in, the main outputs are active, and
the Volume buttons adjust the main output level. The XDA-2 remembers both settings
independently. When you unplug the headphones, the main output level on the XDA-2 will
return to its previous setting; when you plug the headphones back in, they will return to their
previous setting.