Radial Engineering Ltd.
USB-Pro™
True to the Music
®
3
gETTIng STArTEd
Before making any connections, always ensure your audio system
is either turned down or turned off in order to protect more sensitive
components from damage due to loud turn-on or plug-in transients.
uSB ConnECTIon
As the USB-Pro uses a TYPE B USB connector, you will need a USB
2.0 cable that fi ts the USB port on your computer or laptop. This is a
common ‘TYPE A to TYPE B’ USB cable that is compatible with the majority
of printers, hard drives and audio interfaces.
TYPE A uSB
Fits most laptops and computers
TYPE B uSB
Used to connect to the USB-Pro
The Radial USB-Pro is powered by your computer’s USB port. As soon
as you plug it in the USB-Pro will power up. The POWER LED indicator
will illuminate to let you know the USB-Pro
is up and running. On most computers the
USB-Pro will automatically become the
default audio output device after it is plugged
in. If this does not happen automatically, go
to your system settings/control panel and
select the ‘Radial USB Pro’ from the list of
available audio devices.
AudIo ConnECTIonS
Connect two standard low-impedance XLR cables from the LEFT and
RIGHT outputs to the mic or line inputs of your PA or recording system.
These XLR outputs conform to the AES standard and are balanced
to drive long cable runs up to 100 meters (300’) without noise and
are suitable to connect the USB-Pro to professional mixing consoles,
preamps and power amplifi ers.
lEFT
rIgHT
Audio connections for PA system and recording systems use
balanced XLR cables up to 100 meters (300’).
IMPORTANT NOTICE:
The USB-Pro does not require phantom power
to operate. For best results ensure the phantom power is switched off
when connecting to the microphone input of a mixer. In case of use
with a mixer with global phantom power that is activated, the isolation/
bypass switches on the USB-Pro are to be set to the isolation position.
lEd Power Indicator
