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Bogen M300 - page 1
M-Class Amplifier M300, M450, & M600 Models Installation and Use Manual © 200 1 Bogen Communications, Inc. All rights reserved. 54-2037-0 1 R2 0 1 09 : http://www. guardianalarms . net ...
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Bogen M300 - page 2
Notice Every effort was made to ensure that the information in this guide was complete and accurate at the time of printing. How ev er , information is subject to change. Important Safety Information W ARNING: T o Reduce The Risk of Fir e Or Electric Shock, Do Not Expose This Apparatus T o Rain Or Moisture. Alwa ys f ollow these basic safety pr eca ...
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Bogen M300 - page 3
Contents Page INTRODUCTION .................................................................................................. 1 Package Contents............................................................................................................... . 1 P ANEL DESCRIPTIONS ...................................................................... ...
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Bogen M300 - page 4
Intr oduction Bogen's M-Class amplifiers deliver on what pr of essional sound installers need most: Flexibility , P ow er , and Reliability . Flexibility The M-Class allows for the installation of up to 2 input modules, accepting inputs fr om micr ophones, telephone systems, ster eo sour ces, mono sour ces, or daisy-chaining of amplifiers. Eac ...
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Bogen M300 - page 5
P anel Descriptions M-Class Fr ont P anel 1 . Status Indicators The Status LED is a multi-purpose indicator : Green - Amplifier is on and operating normally . Amber - Amplifier is in low-pow er consumption Sleep Mode. Red - Amplifier has pr otected itself due to a fault condition. One for each channel. 2. Signal Indicators Illuminates green when si ...
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Bogen M300 - page 6
P anel Descriptions M-Class Rear P anel 1 . Low-Impedance Outputs Accepts up to # 1 0 spade lugs for low-impedance speak er connections. 2. Channel Balance Only activ e in Dual Mono mode. Allows one channel’ s volume to be adjusted r elative to the other channel. 3/4. Effects Loop In/Out The effects loop connectors pr ovide an insertion point for ...
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Bogen M300 - page 7
Installation Installation Components 1 . Rack Ears Prior to installing the amplifier , y ou will need to attach the installation rack ears if you intend to install the ampli- fier in a rack and complete the setup process. Remov e the 6 fr ont most cov er scre ws on each side panel of the amplifier and attach rack ears as shown. 2. Dust Filter Inser ...
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Bogen M300 - page 8
Installation V entilation The M-Class was designed to be placed on a table or rack-mounted. When rack mounting, the amplifiers can be stack ed one on top of the other for maximum use of the rack. An open air space of at least 4" must be pr ovided at the fr ont air intak es of the amplifier and the r ear exhaust must ha v e at least 4" bet ...
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Bogen M300 - page 9
Installation Module Installation Installation T wo input module ba ys are a vailable to accept various Bogen input modules ther eby allowing users to customize the amplifier to suit the needs of the installation. First read the instructions included with the module and mak e the desired jumper setting changes bef ore installing the module. The inpu ...
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Bogen M300 - page 10
Connections Speakers Lo w-Impedance Speak er Connections When the amplifier is set to either the stereo mode or the Dual Mono mode (see Operation section), low-impedance speak ers can be connected to either the "A" or "B" speak er output terminals. The amplifier is designed to work into speak er load impedances as lo w as 3.2 oh ...
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Bogen M300 - page 11
Operation Contr ols & Connector s Le vel Contr ols The front-mounted le v el contr ols act differ ently depending on the mode of operation. In the stereo mode, each level contr ol determines the v olume of the corr esponding amplifier channel as in a typical amplifier . In the 70V Mono and Dual Mono modes, the controls ha ve a differ ent functi ...
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Bogen M300 - page 12
Operation Effects Loop The effects loop connectors act as an insertion point for outboard signal pr ocessing equipment when the M-Class is operating in either the 70V Mono or Dual Mono modes. In these modes, the inputs and front panel contr ols f orm a 2: 1 mix er . Connect the Effects Loop Out to the input of the external signal pr ocessing equipm ...
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Bogen M300 - page 13
Operation 70V Mono Mode Placing the 3-position switch to its right most position puts the amplifier in the 70V Mono mode of operation. The amplifier supplies a single channel of amplification in this mode (see 70V Mono Mode Block Diagram ). This mode also mix es the signals fr om each input module into a mono pro- gram. Input signals of modules tha ...
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Bogen M300 - page 14
Operation Modules Standard Input Module The M-Class is shipped with one input module, the BAL 1 S, pre-installed. The BAL 1 S provides 2 high-imped- ance, balanced, low-noise inputs. This module pro vides a standard 2-channel amplifier input, but can be replaced by other modules if desir ed. The input’ s connectors, labeled A & B, corr espond ...
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Bogen M300 - page 15
Applications Application Examples Application 1 : Simple 1 -Zone , 70V Mono telephone paging system with bac kground m usic Backgr ound music pla ys thr ough the system when no page is being made. During a telephone page, the background music mutes to a pr edetermined le vel and the telephone page is hear d. When the page is complete , the backgr o ...
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Bogen M300 - page 16
Applications Application 3: Global music/messag e buffered and distributed to multiple amps with local o verride input for each amplifier . Similar to the paging situation found at airport depar ture gates, global music/messages pla y when no local page is present. During local page (from departure gate micr ophone), music/message mutes to pr edete ...
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Bogen M300 - page 17
T r oubleshooting 1 4 • Amplifier not plugged in. • A C outlet dead. • P ow er switch off. • Break er (po wer s witch) tripped. - T urn off, then turn bac k on. • 70V mono connections on amplifier incorr ect. • P oor/brok en speak er wiring. • Defectiv e speak ers. • P oor electrical connections at input. • Input cable r outed nea ...
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Bogen M300 - page 18
Specifications * Both channels driven at nominal line v oltage 1 20V A C 60Hz. 1 5 Po wer Output 70V mono 1 200W @ 4 ohms 900W @ 5.5 ohms 600W @ 8 ohms 4-ohm 600W per channel* 450W per channel* 300W per channel* 8-ohm 400W per channel* 300W per channel* 200W per channel* Input Sensitivity 1 .225V 1 .06V 0.866V S/N Ratio (20K BW) 1 09dB ref. 8 ohms, ...
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Bogen M300 - page 19
50 Spring Street, Ramsey, NJ 07446, U.S.A. Tel. 201-934-8500, Fax: 201-934-9832 Web Site: www.bogen.com / E-mail: info@bogen.com ...
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