Studio Technologies 68A 2001 - Manual (Page 17)

Model 68A/69A User Guide Issue 1, March 2001
Studio Technologies, Inc. Page 17
for Surround
Stereo Output
In addition to a 6-channel surround moni-
tor output, a separate 2-channel stereo
output is also provided. Two configurable
parameters related to the stereo output
are provided. The first parameter selects
whether the stereo output can be enabled.
By default the stereo output can be en-
abled 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 opera-
tor from attempting to select the stereo
output.
The second configurable 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
configuration function allows these chan-
nels to be individually enabled as required.
Solo Mode
Solo operation can be configured 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
adjust the output level of the monitor
output channels. The amount of rotation
required to reach a specific level can be
selected. This can be described as allow-
ing the “curve” or “taper” of the level
control to be configured. Two choices
are available: true logarithmic and modi-
fied logarithmic. In the true logarithmic
mode the level control provides a precise
logarithmic performance 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 ap-
proximately the “2-o’clock” position. Users
of Studio Technologies’ Models 59 and
69 Control Consoles have experienced
this level control performance. To repro-
duce this with the Model 69A, select true
logarithmic.
Other users may be more comfortable with
the response given by the modified loga-
rithmic mode. This provides a much
greater output level during the first 50% of
the level control’s travel. When configured
for the modified log mode, normal listening