Art USBDI Stereo USB D/A Converter with Isolated Outputs - Manual (Page 7)

CONTROLS and OPERATION
FRONT PANEL
MAIN OUTPUTS FIXED/VARIABLE
Using the FIXED switch position. When the MAIN OUTPUTS switch of the USB-
DI is set to FIXED (switch is engaged) the switch will light Blue. The outputs are
fixed and will not vary with the LEVEL pot. The LEVEL pot will only adjust the
signal level of the MONITOR HEADPHONES . The output of the USB-DI will
default to 650mV RMS (-1.5dBu) max output.
Using the
VARIABLE switch position. When the MAIN OUTPUTS switch of the of
the UDB-DI is set to VARIABLE (switch is released) the switch will light Red.
This function allows you to control the LEFT and Right OUTPUTS and the
MONITOR HEADPHONES by varying the LEVEL pot from Min to Max.
NOTE: The LED function also doubles as a power indicator. The lit LED shows that there is
a valid power connection thru the USB cable. If this LED is not lit the unit is not powered.
REAR PANEL
USB Connection
Connect the USB cable to the appropriate computer (digital USB) device and
then to the USB connector on the
USB-DI Project Series .
Once the USB connection is made and your computer is on, the unit will auto-
matically connect and try to set your computer “Default Audio Device” to be “USB
Audio DAC”. Usually the computer will do this automatically whenever a USB
device is first connected, but it is sometimes necessary to make the selection
manually. The same settings may need to be made in your particular audio
application as well (Check your application instructions). These settings should
be made while the
USB-DI Project Series and computer are connected.
LEFT and RIGHT OUTPUTS
Connect the line level XLR OUTPUT jacks to all sorts of systems using analog
inputs.
GROUND LIFT