Singxer
SDA
‐
2
All
‐
In
‐
One
DAC
User
Handbook
1.
Thank
you
for
choosing
Singxer
product.
Please check the appearance and all its accessories
carefully once you have Singxer SDA‐2 in hand.
2. Before you supply AC mains power to the SDA‐2, please check your power supply AC
voltage. There are 2 kinds of input AC voltage selectable according to the switch label
110V and 220V. 110V is for input AC voltage 115VAC and 220V is for input AC voltage
230VAC. Attention: wrong AC voltage input will damage the SDA‐2. Once power cable is
connected, turn on the power switch and you will see the power indicator turned on.
3. Connect the SDA‐2 to a computer or digital player via USB Type A to Type B cable. (Note:
USB’s 5V power supply can not be open circuited); For WINDOWS system, it requires the
SDA‐2 driver to be installed, although the SDA‐2 can be used without driver under the
latest version of WINDOWS 10, it is recommended to use the driver we provided; LINUX or
MAC system has built‐in driver included for the SDA‐2, there is no need to install driver on
the latest version of LINUX or MAC system.
4. Once the SDA‐2 is recognized by your computer or digital player, please ensure “Singxer
SDA‐2” is selected as the output device in your computer system or digital player setting;
While playing music, the SDA‐2 will display the corresponding sample rate.
5. Most music players require proper setting for DSD playback. If you see the DSD sample
rate isn’t displayed correctly, most likely it is due to the incorrect player settings. Please
refer to our other support documents for any detail.
6. The front panel of the SDA‐2 displays visual information via an OLED screen on the left
side (no touch function); There are 5 aspects of information, which are digital filters
(D‐filter), analog output volume mode (FIX or PRE), volume level, current input source and
sample rate.
7. Digital Filters: There are 6 digital filters in PCM mode, SHARP, SLOW, S‐sharp, S‐slow, NOS
or Low‐dispersion; In DSD mode, the SDA‐2 uses only NOS (no oversampling) as the digital
filter.
8. Analog output volume mode: FIX mode means that the analog output (XLR and RCA)
volume is at fixed level; PRE mode means that the analog output volume is adjustable
using the knob on the right side of the front panel. Press and hold the “RPE‐OUT” button
for 2 seconds in order to switch output volume mode (the indicator will only flash when
the button is single‐pressed); Attention: Analog output (XLR and RCA) volume control is
shared together with headphone volume control, please always lower the volume level to
MIN before connecting any headphones or other connections.
9. Volume VOL: The volume level is adjustable from 0 to 90, the maximum volume level is 90
which equals to 0dBFS; Each volume attenuation step is 1dB, the lowest volume level “0” is
‐90dB; FIX volume mode is always 0dBFS.
10. Input source selection: By single‐pressing INPUT button you can switch different input
source, in order, USB, I2S, OPT, COAX and AES; All input interfaces accept DSD signal, USB
and I2S accept both DSD native and DSD DOP signal, while OPT, COAX and AES only accept
DSD DOP signal. For I2S input, please configure the DIP switch at the bottom of the chassis
since there are different I2S line order from different audio source equipment.
