RoadRunner
U S E R S G U I D E
31
pin 2 and ground to pin 3 of the XLR connector. In this case, you
should keep the audio leads as short as possible.
Some phantom
power supplies may require the disconnection of the shielding at one
side of the cable
.
Adjust the input levels so that the green ‘NORM’ light illuminates
when audio is present and the red ‘CLIP’ lamp does not. It is
recommended that the level controls for all unused inputs be turned
down.
When connecting the
RoadRunner
to external mixers or recording
devices, it is easiest to adjust the levels by putting the
RoadRunner
into
loopback
<Sys LB><Loopback>.
Don’t forget to take the
RoadRunner
out of loopback when done.
Two headphone outputs are available, and the mix of local and return
audio is individually adjustable for each headphone circuit. Although
the
RoadRunner
is a monaural device, the headphone connectors are
designed for stereo headphones, and audio is sent to both ears.
Do not
use monaural headphones with two conductor plugs.
Balanced line level return audio as well as unbalanced line level local
and return audio outputs are available on the rear panel. The output
levels are fixed at 0 dBu (at nominal input level) relative to input level,
>600 Ohm output impedance. The unbalanced outputs use three
conductor connectors, with tip and ring wired in parallel.
Do not use two conductor plugs, as these will short the output.
Audio Output Muting
The
return
audio can be muted using the
<Advanced><Decoder><More><Audio Out><Mute>
sequence or the
DMU
command. All return audio outputs, including the
headphone, are muted simultaneously.
Loopback Testing
Loopback testing is a valuable tool for adjusting audio I/O and for
debugging. System loopback puts the
RoadRunner
into loopback by
!
note:
