Studio Technologies 65 - Manual (Page 9)

Model 65 User Guide Issue 4, January 2004
Studio Technologies, Inc. Page 9
for Surround
Support for Two Subwoofers
As previously discussed, the outputs of
the low-pass filters associated with the
five main inputs, along with the LFE signal,
can be assigned to either or both of the
subwoofer outputs. The two subwoofer
outputs allow flexibility when designing a
loudspeaker system. A system could be
configured to support subwoofers that are
position-oriented, such as “sub left front”
and “sub right front.” Or, the subwoofers
could be configured according to program
content, such has having subwoofer output 1
handle only LFE information, while sub-
woofer output 2 handles the low-passed
signals from the main inputs.
Bass Management Bypass
A Model 65 feature allows the bass
management function to be disabled by
means of a front-panel switch. This function
can be useful, especially during the monitor
system installation and room-tuning pro-
cess. When the bypass function is enabled,
the five main input signals route directly to
the main outputs. In addition, the outputs of
the low-pass filters associated with the main
inputs no longer route to either of the sub-
woofer outputs. However, when the bass
management bypass function is active the
LFE signal continues its normal routing,
flowing to either or both of the subwoofer
outputs.
Remote Control
Three remote control functions are avail-
able: LFE low-pass filter enable, LFE mute,
and subwoofer mono. The remote control
functions are specifically provided for use
during the recording or mixing process. An
effective installation could utilize foot
switches or console-mounted buttons to
allow easy operator access to the remote
control functions.
Remote control of the LFE low-pass filter
allows real-time confirmation of LFE con-
tent. Some release formats require that LFE
program content be band restricted. Under
this condition, a valid audio mix would have
no change in its sonic character when the
LFE low-pass filter is enabled.
When LFE mute is enabled, normal bass
management operation continues, but the
LFE signal is not routed to either of the
subwoofer outputs. This function allows
a direct check of the impact an LFE signal
is having on an overall mix.
The subwoofer mono function is provided to
allow confirmation of the phase-coherency
of the two subwoofer outputs. When the
function is enabled, the subwoofer signals
are combined (summed), attenuated by
6dB, and fed to both subwoofers.
Expansion Capability
Provision has been made to allow multiple
Model 65 units to be easily interconnected.
For example, by using two units, ten main
and two LFE inputs are supported, as well
as providing ten main and two subwoofer
output channels. For other special applica-
tions a virtually unlimited number of units can
be interconnected.
Flexibility
The Model 65 is designed to be used
directly “out of the box,” providing effective
bass management for most 5.1 applica-
tions. However, installation-specific require-
ments, along with the evolving world of
multichannel audio, make flexibility impera-
tive. With the Model 65 you can use it “our
way,” or easily perform a minor or major
reconfiguration. A competent technician can
field-adjust a number of key bass manage-
ment parameters.