Model 50/51 User Guide
Issue 6, September 2004
Studio Technologies, Inc.
Page 13
System Components
The main StudioComm shipping carton
contains a Model 50 Central Controller,
Model 51 Control Console, 5-conductor
MIDI-style cable, and User Guide. Units
destined for North America are shipped
with an AC mains cord. Your dealer or
distributor will provide an AC mains cord
for non-North American destinations.
Model 35 and Model 38 Talent Amplifiers,
along with accessories, will be contained
in separate cartons. Please check to
ensure you have everything you need.
Mounting the Model 50
The Model 50 requires one space in a
standard 19-inch (48.3cm) equipment
rack. Select a location near where the
Model 51 Control Console will be located.
A cable is provided to connect the Model
50 to the Model 51. If required, you can
supply a longer cable, however 50 feet
(15.3m) is the recommended maximum
length. It is desirable to locate the Model
50 to allow easy access to both the front
and the back panels. The back panel
contains most of the input and output
connectors, while the front panel is used
to access line input 7 and a multiple
(mult) of the dub output. In addition, the
front panel also contains several LED
indicators. The Model 50 is secured to
the equipment rack using two mounting
screws per side.
Audio Inputs and Outputs
The Model 50’s line-level audio input and
output connections are made using
¼
-inch 3-conductor phone jacks. The
choice of phone jacks was simply a
matter of real estate—21 XLR connectors
don’t quite fit on the back of a one rack-
space unit!
Balanced Input and Output Connections
Sleeve: Shield
(Switchcraft No. 297, Neutrik NP3C, or equivalent)
Unbalanced Input and Output Connections
Sleeve: Shield
Tip: +
(Switchcraft No. 280, Neutrik NP2C, or equivalent)
Tip: +
For connection of balanced input and
output signals, ¼-inch 3-conductor phone
plugs should be used. The plugs should
be wired with tip positive (+ or hot), ring
negative (– or cold), and sleeve shield.
With unbalanced input and output signals,
either ¼-inch 2- or 3-conductor plugs
can be used. With 2-conductor plugs tip
should be wired as positive (+ or hot) and
sleeve as shield. With 3-conductor plugs
tip should be wired as positive (+ or hot)
and both ring and sleeve as shield.
Stereo Line Inputs
The Model 50 provides seven stereo
line-level inputs. Inputs 1 through 6 are
located on the back panel; input 7 is on
the front. Each input is electronically bal-
anced, and can be configured for compat-
ibility with –10dBV or +4dBu signal levels.
The Model 51 Control Console gives you
push-button control, so you can easily
change input sensitivities at any time
(refer to the Configuration section un-
der Input Sensitivity). Monaural sources
Ring: –
