Instruction/ maintenance manual of the product M450 Bogen
Go to page of 19
M-Class Amplifier M300, M450, & M600 Models Inst allation and Use Manual © 200 1 Bogen Communications, Inc. All rights reserved. 54-2037-0 1 R3 02 1 0.
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 Fire Or Electric Shock, Do Not Expose This Apparatus T o Rain Or Moistur e.
Contents Page INTRODUCTION .................................................................................................. 1 Package Contents...........................................................................................................
Intr oduction Bogen's M-Class amplifiers deliv er on what pr ofessional sound installers need most: Flexibility , Pow er , and Reliability . Flexibility The M-Class allows for the installation of up to 2 input modules, accepting inputs from micr ophones, telephone systems, stereo sour ces, mono sources, or daisy-chaining of amplifiers.
P anel Descriptions M-Class Fr ont P anel 1 . Status Indicators The Status LED is a multi-purpose indicator that lights in thr ee colors to show status. One for each channel. • Green - Amplifier is on and operating normall y . • Amber - Amplifier is in low-pow er consumption Sleep Mode .
P anel Descriptions M-Class Rear P anel 1 . Lo w-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.
Installation Installation Components 1 . Rack Ears Prior to installing the amplifier , you will need to attach the installation rack ears if you intend to install the ampli- fier in a rack and complete the setup pr ocess. Remov e the 6 front most cov er screws on each side panel of the amplifier and attach rack ears as sho wn.
Installation V entilation The M-Class was designed to be placed on a table or rack-mounted. When rack mounted, the amplifiers can be stack ed one on top of the other for maximum use of the rack.
Installation Module Installation Installation T wo input module ba ys are a vailable to accept various Bogen input modules thereby allowing users to customize the amplifier to suit the needs of the installation. Read the instructions included with the module and mak e the desired jumper setting changes bef ore installing the module.
Connections Speakers Lo w-Impedance Speaker Connections When the amplifier is set to either the ster eo 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.
Operation Contr ols & Connector s Le vel Controls The front-mounted le vel contr ols act differently depending on the mode of operation. In the stereo mode, each lev el control determines the volume of the cor responding amplifier channel as in a typical amplifier .
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 form a 2: 1 mix er .
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 from each input module into a mono pr o- gram.
Operation Modules Standard Input Module The M-Class is shipped with one input module pre-installed. The module pr o- vides 2 high-impedance, balanced, low- noise inputs, but can be r eplaced by other modules if desired.
Applications Application Examples Application 1 : Simple 1 -Zone , 70V Mono telephone paging system with bac kgr ound music Background m usic plays thr ough the system when no page is being made . During a telephone page , the backgr ound music mutes to a pr edetermined level and the telephone page is hear d.
Applications Application 3: Global music/message buff ered and distributed to multiple amps with local override input for each amplifier Similar to the paging situation found at airport depar tur e gates, global music/messages pla y when no local page is present.
T r oubleshooting 1 4 • Amplifier not plugged in. • A C outlet dead. • Po wer switch off. • Break er (pow er switch) tripped. - T urn off, then turn bac k on. • 70V mono connections on amplifier incorr ect. • Poor/br ok en speak er wiring.
Specifications 1 5 * Both channels driven at nominal line v oltage 1 20V A C , 60 Hz. ** Requires 20A, NEMA 5-20R T ype Receptacle . T echnical Specifications M600 M450 M300 P ower Output 70V Mono 4-ohm 8-ohm 1 200W @ 4 ohms 600W per channel* 400W per channel* 900W @ 5.
50 S pring S treet, Ramsey , NJ 07446, U.S.A. T el. 201-934-8500, Fax: 201-934-9832 Web Site: www .bogen.com / E-mail: info@bogen.com.
An important point after buying a device Bogen M450 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bogen M450 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 Bogen M450 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bogen M450 you will learn all the available features of the product, as well as information on its operation. The information that you get Bogen M450 will certainly help you make a decision on the purchase.
If you already are a holder of Bogen M450, 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 Bogen M450.
However, one of the most important roles played by the user manual is to help in solving problems with Bogen M450. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bogen M450 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
