Instruction/ maintenance manual of the product M80 Presonus Audio electronic
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M80 EIGHT CHANNEL MICROPHONE PRE- AMPLIFIER USERS MANUAL Version 1.0 1998, PreSonus Audio Electronics, Incorporated. All rights reserved..
WARRANTY PreSonus Limited Warranty PreSonus Audio Electronics Inc. warrants this product to be free of defects in material and workmanship for a period of one year from the date of original retail purchase . This warranty is enforceable only by the original retail purchaser .
TABLE OF CONTENTS 3 1 Overview 1.1 Introduction 6 1.2 Features 6 2 Controls & Connections 2.1 Front Panel Basic Layout 8 2.2 Preamplifier Section 12 2.3 Master Channel 14 2.4 Power Supply 16 3 Basic Setup & Operation 3.1 Quick Start 18 3.2 Basic Connections 19 3.
1 OVERVIEW 4 1.1 INTRODUCTION Thank you for purchasing the PreSonus M80 Eight Channel Microphone / Instrument Preamplifier with Mix Bus. This pre-amp was designed using state of the art components to deliver crystal clear audio for an infinite period of time .
OVERVIEW 5 phase reverse switch allows the operator to avoid phase cancellation when identical microphones are used in close proximity to one another . The phase reverse switch also can compensate for different XLR connector hook-ups where pin connections have been inverted.
CONTROLS & CONNECTIONS 6 environments such as concert halls or clubs or in control rooms monitoring at high volume levels..
4 TECHNICAL 7 2.1 FRONT PANEL BASIC LAYOUT Notice that the front panel is divided into eight identical Preamplifier sections plus a Master section. These are the eight microphone preamplifier channels of the M80.
CONTROLS & CONNECTIONS 8 • L/R Assign • IDSS Control • Phantom Power Switch • Phase Reverse Switch • -20db Pad • 80 Hz Filter • Gain Control Master Channel contains: • Stereo Output Control • Headphone Level Control 2.
CONTROLS & CONNECTIONS 9 Phantom Power is available to each channel input of the M80 . The 48 volts is supplied by way of the XLR connector for condenser mics and any other devices requiring continuous power through the XLR input .
CONTROLS & CONNECTIONS 10 The Stereo Output control adjusts the output level of the Stereo Mix Bus . This potentiometer governs the output level of the Bus. Channels are assigned to the bus via the L/R assign switch on the individual pre-amp channels.
CONTROLS & CONNECTIONS 11 PIN 1 GND PIN 2 High (+) PIN 3 Low (-) Cable Wiring Diagram for Input and Output XLR The Output XLR Connector is servo balanced and operates at +4dBu.
CONTROLS & CONNECTIONS 12 A pair of XLR connectors are provided for the Left And Right Outputs of the stereo Mix Bus. Signals are assigned to these outputs using the L/R Assign switches on the individual channels.
3 OPERATION 13 3.1 Dynamic Microphones Dynamic microphones are characterized by lower output levels. Hence, more gain is needed to amplify a dynamic microphone to operating level. Occasionally it is necessary to add the –20dB pad to the microphone to avoid distortion (e.
CONTROLS & CONNECTIONS 14 3.6 Aux Input – Cascading Mixes The Aux Input on the M80 mixes an external audio source in with any other channel assigned to the bus. This provides an opportunity to connect multiple M80’s together thus creating more inputs for the stereo mix bus.
4 TECHNICAL 15 M80 Technical Specifications : Number of Channels Eight Dynamic Range >120dB Noise Floor @ Bus -90.2dBu Noise Fl oor @ Main Output -96.
CONTROLS & CONNECTIONS 16.
An important point after buying a device Presonus Audio electronic M80 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Presonus Audio electronic M80 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Presonus Audio electronic M80 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Presonus Audio electronic M80 you will learn all the available features of the product, as well as information on its operation. The information that you get Presonus Audio electronic M80 will certainly help you make a decision on the purchase.
If you already are a holder of Presonus Audio electronic M80, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Presonus Audio electronic M80.
However, one of the most important roles played by the user manual is to help in solving problems with Presonus Audio electronic M80. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Presonus Audio electronic M80 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
