Studio Technologies 68A 2005 - Manual (Page 20)

Issue 2, January 2005 Model 68A/69A User Guide
Page 20 Studio Technologies, Inc.
for Surround
level when mono is active can be confi g-
ured. The choices are 0, 3, 4, and 6 dB.
Selecting 0 dB is equivalent to the attenua-
tion function being disabled, resulting in no
attenuation when mono is selected. This
is provided for those special cases when
the mono mode is set to mono-to-center
and no phase coherent signals are expect-
ed to be part of the left and right channels.
Not generally appropriate for music mix-
ing, it may fi nd use in broadcast and cin-
ema applications. 3 dB and 4 dB are good
choices for the mono-to-center mode when
monitoring mixes that have signifi cant
phase coherence, such as music sources.
6 dB is provided for compatibility with the
mono function found on many audio con-
soles. As the factory default, an attenua-
tion value of 3 dB was selected.
Auto Downmix
The downmix function can be confi gured
to automatically enable whenever the
mono function is enabled. This is provided
to ensure accurate monitoring of surround
sources when mono is enabled. This is the
default mode, although it can be changed
as desired.
Restore Factory Defaults
The restore factory defaults function is
provided primarily for factory use. In
this way a system can be shipped with
the default settings selected. While you
are welcome to use this function, be care-
ful so that your confi guration efforts aren’t
wasted. Specifi cally, be aware that the ref-
erence level is reset to minimum level. All
the other parameters are fairly easy to set
up, but resetting the reference level would
require getting out an SPL meter and a
calibrated signal source. This is a hassle
you may not need!