Henry Engineering SIXMIX - Manual (Page 7)

PAGE 7
4.6 TALKBACK
SYSTEM
SIXMIX includes a Talkback system that allows the console operator to talk to a guest announcer who is listening
with a MultiPhones Guest Pod. If the TALKBACK button is pressed and held down, “normal” audio feeding the
Guest Pod output is interrupted while the console operator uses Mic 1 to talk to the guest announcer.
If the guest announcer needs to reply, the console operator can put Mic 2 in CUE mode; the guest’s mic (Mic 2) will
be heard through the console’s Cue system. (See Section 5.3 for a Remote Talkback option.)
4.7 PROGRAM
OUTPUT
The Program output is the main mix bus output of the console. It can be used to feed a broadcast transmitter,
recording equipment, a router or DA, or other similar audio gear.
4.8 VU
METERS
The SIXMIX features accurate LED VU meters to monitor the Program bus output levels. The ballistics of the LED
display mimics that of ANSI industry standard VU meters. Mix levels should be adjusted so most peaks read about
0VU. There is about 20 db of headroom above 0-VU. The meters are calibrated so that 0-VU equals +4 dBu on the
Program outputs.
5.0 USER
MODIFICATIONS
5.1 MANUAL
HEADPHONE-CUE SELECTION
When the AutoCue feature is used, the Headphone output is automatically switched to the Cue bus whenever any
source is assigned to the Cue bus. To manually switch the headphones to the Cue bus whether or not any source
is assigned to the Cue bus, the Manual Headphones-Cue mode can be used. To use this mode, remove the
console’s bottom cover and locate solder pads on the PC board labeled MAN HP CUE. Solder a jumper wire
between these pads. In this mode, whenever the AutoCue button is DOWN, the Headphones output will hear the
Cue bus, even if no sources are assigned to the Cue bus. To return the Headphones so they “follow” the Monitor
output, the AutoCue button must be UP.
5.2
CUE OVERRIDE PROGRAM DEFEAT
The console is normally shipped preset for “Cue Override Program” mode. In this mode, whenever a source is
assigned to the Cue bus, the Program assignment is overridden. This prevents a source from being cued while it is
on the air. This feature can be cancelled, permitting a source to be assigned to the Cue bus and the Program bus
simultaneously. To cancel the Cue Override feature for any channel (except Channel 1, which has no Cue option),
remove the console bottom cover and locate solder pads on the PC board labeled Q2, Q3, Q4, Q5, & Q6.. Each
pair of pads cancels Cue Override for that channel, e.g., Q2 is for Channel 2. By soldering a jumper wire across
any pair of pads, the Cue Override function for that channel will be cancelled.
5.3 REMOTE
TALKBACK
For a booth announcer to talk to the console operator (off-air), The SixMix requires that the console operator press
the Channel 2 Cue button so that Mic 2 can be heard through the Cue speaker. If a “Remote Talkback” button for
the booth announcer is required, adding an external Talkback switch (or relay) is possible.
Connect a suitable N.O. pushbutton between the TIP of the Mic 2 Process Insert plug, and the RING of the
MixMinus output plug. (If mic processing equipment is NOT being used, be sure to add a jumper between the TIP
and RING of the Mic 2 Process Insert plug.) Pressing the Remote Talkback button will inject Mic 2 audio into the
Cue speaker. NOTE: Be sure the Cue Volume control is set to “10 o’clock” or higher, or the Mic 2 audio level will
be reduced. If wiring to the Remote Talkback button exceeds about 8 feet, a small relay should be used for audio
switching, with the Remote Talkback button controlling the relay coil.