Studio Technologies 81 - Manual (Page 8)

Issue 1, January 2000 Model 81 User Guide
Page 8 Studio Technologies, Inc.
Model 81 Back Panel
Model 81 Front Panel
Power
present LED
–10dBV or +4dBU output
level configuration switches
AC mains
connection
Stereo line-level
inputs
Stereo line-level
outputs
Input level
calibration LEDs
Left and
right input
trim controls
the eight stereo outputs use 1%-tolerance
components to provide precise –10dBV or
+4dBu outputs.
Audio Performance
The Model 81 is the result of exacting
circuit design combined with the latest
state-of-the-art components. Like all
Studio Technologies products, the Model
81 has survived tough listening evalua-
tions by industry professionals. These
veterans have the “ears” to guide us in
achieving the right performance. The
outcome is a product that achieves
sonic excellence.
Design Philosophy
Most audio distribution amplifiers contain
a level trim adjustment on each output.
After careful study Studio Technologies’
concluded that these adjustments con-
fused, and often interfered with, the
process of getting maximum audio
performance. After checking with person-
nel in the field, it became clear that what
is desired in virtually every distribution-
amplifier applications are multiple audio
outputs all operating at a standard refer-
ence level. By implementing the ExactCal
system, the Model 81’s internal operating
level can be easily calibrated to match that
of the input signal. Once this input level
matching is accomplished the eight stereo
outputs can be individually configured for
–10dBV or +4dBu nominal operating
level. In conclusion, output trim pots are
not included on the Model 81 for the
simple reason that better audio perfor-
mance can be achieved without them!