Utility mixer – Telos Zephyr Xstream User Manual
Page 197

USER’S MANUAL
Section 10: APPLICATIONS GUIDE 185
Example 2: Using a Utility Mixer
The simplest form of mix‐minus using a Utility Mixer with mono inputs. Two
mono faders and two busses, AUX 1 and AUX 2 are used.
It is also possible to use the mixer's main outputs to form a mix‐minus, by
Panning one Input channel "hard left" and the other input" hard right".
Phones and Remotes
To save money and hassle, callers are usually received at the studio, rather than at the remote
site. In this situation, phones need to be fed to the remote talent, so that they can hear and
respond to callers. Moreover, the phone callers need to hear the talent. In many cases, the
remotes are sufficiently distant that the station cannot be monitored for the caller feed. Even if
it could, the profanity delay would be a problem, since the talent needs to hear the phone pre‐
delay.
The talent hears callers via the return path. As before, this return is fed with mix‐minus: a mix
of everything on the program bus minus the remote audio.
As for the second half of the equation, the callers hear the talent because the remote feed is
added to the telephone mix‐minus buss. No problem if you have a set‐up that permits selective
assignment to the phone mix‐minus.
The most common problem with this arrangement is a result of a phone hybrid with too much
leakage combined with the system delay. If the hybrid isn't doing a good job of preventing the
send audio from leaking to its output, the special remote send mix‐minus is corrupted.
AUX 1
AUX 2
LEFT OUTPUT
AUX 1 OUT
AUX 2 OUT
UTILITY
MIXER
Mic1
Z XS A
Z XS B
NOTE
: This must be
turned down or AUX 1
will no longer be a
mix-Minus
NOTE
: This must be
turned down or AUX
2 will no longer be a
mix-Minus
Input B
Input A
RIGHT OUTPUT
PAN
Output B
Output A