Studio Technologies 68A 2005 - Manual (Page 17)

Model 68A/69A User Guide Issue 2, January 2005
Studio Technologies, Inc. Page 17
for Surround
Stereo Output
In addition to a 6-channel surround monitor
output, a separate 2-channel stereo output
is also provided. Two confi gurable param-
eters related to the stereo output are pro-
vided. The fi rst parameter selects whether
the stereo output can be enabled. By de-
fault the stereo output can be enabled by
an operator. In applications where stereo
monitor loudspeakers are not connected
to the stereo output, the stereo output can
be disabled. This can minimize confusion,
preventing an operator from attempting to
select the stereo output.
The second confi gurable parameter may
seem a bit confusing, but could prove
useful for special applications. By default,
when an operator switches from the sur-
round output to the stereo output, only the
left and right channel connection associ-
ated with the stereo output will be active;
all six of the surround monitor output
channels will mute. But it’s possible that
surround output channels C, LS, RS, and
LFE may need to remain active when the
stereo output is active. The stereo output
confi guration function allows these chan-
nels to be individually enabled as required.
Solo Mode
Solo operation can be confi gured to
satisfy operator preference. The additive
solo mode matches the functionality found
in most recording consoles. In this mode,
multiple channels can be simultaneously
“soloed,” allowing those channels to be
monitored at the same time. Other opera-
tors may prefer the exclusive solo mode.
When this mode is selected, only one
channel can be selected for solo at a
time. The additive solo mode is the
default setting.
Power-up Mute All
By default, upon application of AC mains
power the monitor outputs remain muted
after the system’s power-up sequence
has been performed. Then an operator
must manually press the mute all button
to enable the monitor outputs. There may
be cases where having the monitor output
channels return to their respective states
as left at the time of the previous loss of
AC mains power, allowing normal opera-
tion automatically to resume.
Level Control Response
As expected, the level control on the
Model 69A Control Console is used to ad-
just the output level of the monitor output
channels. The amount of rotation required
to reach a specifi c level can be selected.
This can be described as allowing the
“curve” or “taper” of the level control to
be confi gured. Two choices are available:
true logarithmic and modifi ed logarithmic.
In the true logarithmic mode the level
control provides a precise logarithmic per-
formance over its entire rotation, e.g., the
output level is half of its maximum when
the control is set at its midpoint, i.e., 50%
of its “travel.” In the true log mode, normal
listening may require the level control to
be set to approximately the “2-o’clock”
position. Users of Studio Technologies’
Models 59 and 69 Control Consoles have
experienced this level control performance.
To reproduce this with the Model 69A,
select true logarithmic.
Other users may be more comfortable
with the response given by the modifi ed
logarithmic mode. This provides a much
greater output level during the fi rst 50% of
the level control’s travel. When confi gured
for the modifi ed log mode, normal listening
may require the level control to be set to