Specifications

RoadRunner USERS GUIDE

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

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: