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TOA 900 Series MixerAmplifiers

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									900 Series Modular Amplifiers
    Modular Design Advantages

   Design Flexibility
   One Product for Many Applications
   Easy to Upgrade
   Easy to Repair and Service
   TOA Reliability
 A-900 Series
Mixer/Amplifiers
           30, 60 and 120 Watt Models
           Eight Module Slots
           Dual Mute Buses
           Remote Master Volume
           Bass/Treble Controls
           25/70 V and 4/8 Ohm
            Speaker Outputs
           Auxiliary Output
           Bridge In/Out
           Pre-Out/Power In
           Protection Circuitry
900 Series Modules
             Module Categories

   Mic
       Typically from 0.25 mV (-70 dBu) to 2.5 mV (-50
        dBu)
       Examples include: microphones, wireless
        microphone receivers
   Line
       Typically from 100 mV (-18 dBu) to 7.75 V (+20
        dBu)
       Examples include: AM/FM tuners, CD players,
        cassette decks, computer sound cards, jukeboxes,
        satellite receivers, signal processors, telephone
        page outputs, wireless microphone receivers
   Special Function
                   Mic Modules

   Low-Impedance
   Phantom Power
   Hi/Low Cut Filters
   Types
       Standard
       Mute-Send
       Mute-Receive
       Voice Gate
       Compressor
       Remote Volume
                 Line Modules

   Standard
   Hi/Low Cut Filters
   Balanced w/ Transformer-Isolation
       10k ohms or 600 ohms
   Unbalanced
       Dual RCA jacks (stereo sum)
   Mute-Send
   Mute-Receive
   Remote Volume Control
   Compressor
              Special Function

   Line Output
       Balanced, Transformer-Isolated, Level Control
   Line Input w/ MOH Output
       Mute-Receive
   Tone Generators
       1k Hz Sine Wave
       Buzzer/Yelp
       Switch-Selectable Chime
       Message Repeater
   Speaker Processors
       F-122CU, H Series
Module Model Numbers
     Module Connector Types




F         M          P          R        R          S*           S     S
*All “S ” type modules with 3--screw terminal connectors will change
to Removable Terminal Block (Phoenix-style) in 2004.
           900 Muting Modules

   Mute Send
       Activates the Mute function of Mute-Receive
        modules
   Mute-Receive
       Responds to Mute activation from Mute-Send
        modules or switch closure
   Both types connect to Mute Bus #1 and #2
Module Edge Connector
Mute Bus Architecture


              Mute Bus



Module Ch 1


Module Ch 2

Module Ch 3



                           Rear Panel
   Etc.                  Screw Terminal
    Dual Mute Buses


              Mute Buses
               #1 #2



Module Ch 1



                             Rear Panel
                           Screw Terminals

                              Mute 1

   Etc.                       Mute 2
A-900MK2 Rear Panel View




                     Mute 1
                     Mute 2
                     GND
Speaker Processor Modules
Speaker Processor Modules
900 Series Module Guide
    M-900MK2
Mixer/Pre-amplifier
             Eight Module Slots
             Dual Mute Buses
             Remote Master Volume
             Bass/Treble Controls
             Balanced, Transformer-
              Isolated Outputs
             Auxiliary Output
             Bridge In/Out
P-900MK2 Series
Power Amplifiers

           60, 120 and 240 Watt
            Models
           One Module Slot
           Direct Input
           25/70 V and 4/8 Ohm
            Speaker Outputs
           Protection Circuitry
       900 Series
In-Wall Mixer/Amplifiers
               60 and 120 Watt Models
               Six Module Slots
                (Expandable To Eight)
               One Mute Bus
               Graphic EQ
               Compressor
               25/70 V and 4/8 Ohm
                Speaker Outputs
               Bridge In/Out
               Protection Circuitry
               Flush or Surface-Mount
900 Series Applications
Paging Over a Music Source
Telephone Paging
and Music-On-Hold
Mute-Send/Receive
  Combination

								
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