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Model 81 Stereo Analog
Audio Distribution Amplifier
User Guide
Issue 1, January 2000
This User Guide is applicable for serial numbers:
Model 81 M81-00151 and later
Copyright © 2000 by Studio Technologies, Inc., all rights reserved
5520 West Touhy Avenue
Skokie, Illinois 60077 U.S.A.
Telephone (847) 676-9177
Fax (847) 982-0747
www.studio-tech.com
50204-100, Issue 1
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Table of Contents
Foreword...................................................................... 5
Introduction .................................................................. 7
What This User Guide Covers ................................. 7
System Overview ..................................................... 7
System Features ...................................................... 7
Installation .................................................................... 9
Configuration ............................................................... 11
Operation ..................................................................... 11
Troubleshooting ........................................................... 12
Technical Notes ........................................................... 13
Specifications............................................................... 14
Block Diagram
Model 81 User Guide Issue 1, January 2000
Studio Technologies, Inc. Page 3
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Issue 1, January 2000 Model 81 User Guide
Page 4 Studio Technologies, Inc.
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Foreword
I am pleased to present the Model 81 Stereo Analog Audio Distribution Amplifier.
As president of Studio Technologies, I take a very personal approach when
designing products. Getting older (43 as of this writing) has increased my
appreciation of the more subtle things in lifebe they a part of nature or the
nuances contained in a well-designed piece of electronic equipment. Do the
technical and operational aspects of a product work together to feel right? A
Studio Technologies design is ready to go only when I am completely satisfied.
Many fine people worked toward making the Model 81 happen. Mitch Budniak
(ace consulting engineer) designed many of the circuits. Jim Cunningham contributed to the analog design. Carrie Loving provided engineering support. Al
Lux designed the printed circuit board. Fred Roeck performed the mechanical
design. Joe Urbanczyk coordinated the safety testing and agency approvals.
Please contact me with your questions, comments, and suggestions. I can be
reached by voice at (847) 676-9177, fax at (847) 982-0747, or via the Internet @
www.studio-tech.com.
Sincerely,
Gordon K. Kapes
President
Model 81 User Guide Issue 1, January 2000
Studio Technologies, Inc. Page 5