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Model 82 Stereo Analog
Audio Distribution Amplifier
User Guide
Issue 1, January 2000
This User Guide is applicable for serial numbers:
Model 82 M82-00151 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
50205-100, Issue 1
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Table of Contents
Related Manuals for Studio Tools 82
Summary of Contents for Studio Tools 82
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Page 1: User Guide
Model 82 Stereo Analog Audio Distribution Amplifier User Guide Issue 1, January 2000 This User Guide is applicable for serial numbers: Model 82 M82-00151 and later Copyright © 2000 by Studio Technologies, Inc., all rights reserved 5520 West Touhy Avenue Skokie, Illinois 60077 U.S.A. -
Page 3: Table Of Contents
Table of Contents Foreword..............5 Introduction ..............7 What This User Guide Covers ......... 7 System Overview ............. 7 System Features ............7 Installation ..............8 Configuration ............... 10 Operation ..............11 Troubleshooting ............11 Technical Notes ............12 Specifications............... 13 Block Diagram Model 82 User Guide Issue 1, January 2000... - Page 4 This page intentionally left blank. Issue 1, January 2000 Model 82 User Guide Page 4 Studio Technologies, Inc.
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Page 5: Foreword
Foreword I am pleased to present the Model 82 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 life—be they a part of nature or the nuances contained in a well-designed piece of electronic equipment. - Page 6 This page intentionally left blank. Issue 1, January 2000 Model 82 User Guide Page 6 Studio Technologies, Inc.
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Page 7: Introduction
Introduction construction standards make the Model 82 suitable for continuous operation, even for on-air broadcast applications. The Model 82 Stereo Analog Audio Distribution Amplifier was developed by System Features Studio Technologies as part of its Studio Tools group of audio support products. One Stereo Input The differential input circuitry is compat- The Model 82 is designed to work in a... -
Page 8: Installation
to provide precise –10dBV or +4dBu is desired in virtually every distribution- outputs. amplifier applications are multiple audio outputs all operating at a standard refer- Audio Performance ence level. By implementing the ExactCal The Model 82 is the result of exacting system, the Model 82’s internal operating circuit design combined with the latest level can be easily calibrated to match that... - Page 9 System Components low (– or cold), and pin 1 is shield. With an unbalanced source, connect pin 2 to high The shipping carton contains a Model 82, (+ or hot), and pins 1 and 3 to shield. If User Guide, and warranty card. Units connecting to an unbalanced source in destined for North America are shipped this manner results in hum or noise, try...
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Page 10: Configuration
Configuration 50/60Hz. In most cases, units shipped to North America are factory selected for 120V operation. Units bound for Japan are Input Level Calibration selected for 100V, while our friends “down With the ExactCal calibration section it’s under” and in Europe receive units set for simple to match the nominal level of the 220/240V. -
Page 11: Operation
The LED labeled Lo will light first, then The LEDs labeled Lo will light whenever both LEDs will light, then only the LED an input signal is within the range of 18dB labeled Hi will light. The correct setting below and 0.5dB above the nominal oper- is where both LEDs light their brightest. -
Page 12: Technical Notes
observing the selection boxes to the left it was easy to say that 0dBm is 1 milliwatt of the AC mains connector on the back dissipated in the known load (i.e., 0dBm panel. Whenever mains power is con- across 600 ohms will measure 0.775V). In nected the front panel power present LED contemporary situations an output is rarely should light. -
Page 13: Specifications
Specifications Audio Input: 1, stereo LED Indicators: 5, 1 power present, 4 input level calibration Type: electronically balanced, direct coupled Input Compatibility: can be connected to Fusing: 1 balanced or unbalanced signals Type: 5 x 20mm time lag (Littelfuse 218-series or Impedance: 24k ohms equivalent) Nominal Input Level: –12dBV to +6dBu... - Page 14 This page intentionally left blank. Issue 1, January 2000 Model 82 User Guide Page 14 Studio Technologies, Inc.
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