Pro-Ject Audio Systems DAC Box RS - Manual (Page 4)

© Pro-Ject Audio Systems · Pro-Ject DAC Box RS · Revision 2014.4.1
4
Front panel controls
Switching on and off
The switch on the left hand side of the front panel turns the unit on and off. The blue LED above the ON/OFF
switch shows that the unit is switched on.
After switching on (or selecting tube output stage), the circuit and the tubes need a short time to
reach the correct operating temperature. During warm up the blue LED above ON/OFF switch is
flashing.
We recommend to set the volume control of the amplifier to minimum, prior to switching on.
Input selector
Operating ▲/▼repeatedly selects the inputs in turns. The selected input, the sampling frequency or the DSD
mode of the digital input signal will be indicated by the corresponding LED.
Filter
FIL1/ FIL2 will toggle between the two filters, phase optimised and frequency optimised.
Selecting the output stage
Solid /Tube will toggle between the tube and the class-A output stage. If the class-A output stage is switched
on, the heating of the tubes will be switched of after approximately five minutes.
Driver installation (Windows
® operating systems only)
* For Windows ® operating systems a USB driver (supplied on CD) has to be installed.
Insert the included CD into the drive of you PC and follow the instructions.
Complete the installation by restarting the computer.
After installing the driver, some setting have to be checked/done.
For example - Windows 7
® operating system:
 Control Panel  Hardware and Sound  Sound  Playback:
select Speaker/Project RS USB 2.0 Audio Out

Properties  Supported Formats: make sure nothing is assigned
 Level  Sound: setting must be 100
 Enhancements: disable all enhancements  Advanced  Default Format: set to studio quality 24/192
Using Windows 8 ® , the driver has to be installed in Windows 7 ® compatibility mode.
!