System features – Studio Technologies 55 1996 User Manual
Page 8

Issue 3, December 1996
Model 55/56 User Guide
Page 8
Studio Technologies, Inc.
System Features
Stereo Line Inputs
The Model 55 contains four stereo line-
level inputs which are compatible with both
balanced and unbalanced signals. Each
input is independently software config-
urable for a nominal input level of –10dBV
or +4dBu. This allows direct connection
with virtually any audio source. Each input
can also be configured to operate as a
mono input. In this manner, a signal
connected to the left input is routed to both
the left and right outputs.
Control Room Monitoring
The control room section provides a ste-
reo line-level output for driving a power
amplifier associated with monitor loud-
speakers. Four buttons are used to select
the input source to be monitored. Nor-
mally, only one of the four input sources is
selected for monitoring. For special appli-
cations, the system can be configured to
allow two input sources to be simulta-
neously monitored. The control room level
is adjusted using a smooth-feeling rotary
potentiometer. The Dim button allows the
control room level to be temporarily re-
duced. The Mono button allows the sum
(L+R) of the selected source to be sent as
the control room output.
Meter Output
The meter output provides a stereo output
that “follows” the source(s) selected for the
control room. The signal is not affected by
the control room level circuitry, but is
“post-mono.” The meter output is intended
to be connected to VU- or PPM-type meter
AC mains
connection
Mains voltage
configuration chart
Model 55 Back Panel
Control room
output
Output to talent
amplifiers
To/from Model 56
Control Console
Model 56 Control Console
and Talent Amplifier
over current LED
Input data
present LED
Power
present LED
Stereo line
inputs 1-4
Model 55 Front Panel
Meter
output
Dub
output