Studio Technologies 80 M80-00273, User Manual

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Model 80 User Guide Issue 4, March 1997
Studio Technologies, Inc. Page 9
Installation
In this section you will be installing the
Model 80 in an equipment rack. Audio
input and output connections will be made
using the Model 80’s multitude of phone
jacks. AC mains power will be connected
to the Model 80.
System Components
The shipping carton contains a Model 80,
User Guide, and warranty card. 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.
Mounting the Model 80
The Model 80 requires one space in a
standard 19-inch (48.3cm) equipment
rack. It is desirable to locate the Model 80
to allow easy access to both the front and
the back panels. The back panel contains
the input and output connectors. The front
panel is used to access the calibration
controls and output-level switches. The
front panel also contains several LED
indicators. The Model 80 is secured to
the equipment rack using two mounting
screws per side.
Audio Inputs and Outputs
The Model 80’s 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—20 XLR connectors don’t quite
fit on the back of a one rack-space unit!
Don’t be concerned about “damage” to
your audio quality, the jacks used in the
Model 80 are manufactured by Neutrik
of Switzerland and feature gold-plated
contacts for excellent performance.
Balanced Connection
(Input & Output)
Sleeve
(Shield)
Ring (–)
(Switchcraft No. 297, Neutrik NP3C, or equivalent)
Unbalanced Connection
(Input & Output)
Sleeve
(Shield)
Tip ( + )
(Switchcraft No. 280, Neutrik NP2C, or equivalent)
Tip ( + )
Caution: For reliable audio interconnec-
tion, the plugs you use must comply with
industry standard RS-453. Switchcraft No.
297, Neutrik NP3C, or equivalent will work
correctly. Refer to the Technical Notes
section for details.
Audio Input
The Model 80 provides one stereo line-
level input. It is electronically balanced,
and is compatible with balanced or unbal-
anced signals that have a nominal level
range of
–10 to +10dBu. The ExactCal section
allows precise level calibration with the
connected input signal. It is anticipated
that in most cases a stereo signal will be
connected to the input. The Model 80 can
also be used as a 1-input/16-output mon-
aural distribution amplifier, or as a dual
1-input/8-output monaural distribution
amplifier.