TOA Electronics A-903MK2 manuals
Home Audio > Stereo Amplifier
When we buy new device such as TOA Electronics A-903MK2 we often through away most of the documentation but the warranty.
Very often issues with TOA Electronics A-903MK2 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Stereo Amplifier TOA Electronics A-903MK2 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Stereo Amplifier on our side using links below.
TOA Electronics A-903MK2 User Service
12 pages 211.38 Kb
TOA 900 SERIES II MIXER POWER AMPLIFIEROperating Instructions A-903MK2 A-906MK2 A-912MK2 TOA Corporation2 ContentsNomenclatureFront panel Rack mounting Volume adjustment Installation Servicing Specifications General Description 3 Features5. Excellent output regulation 11. A full range of plug-in modules 12. Portable or rack mounting type 4 NomenclatureFront PanelPower Switch Power Indicator LEDSignal Indicator LEDlevel is fed to the inputs by means of the input and master volume controls. Normal Indicator LED Peak Indicator LED Protection Indicator LEDInput Volume ControlsBass Control Treble ControlTone Switch Low-Cut Switch Master Volume Control 5 Rear PanelAC Power Cord AC Outlet (Unswitched) Output terminals Impedance Select Switch Module Input Ports Power Amp InPreamp Out Remote Volume Control Terminals Mute terminals Input Connections 6 Output Connections (A-903MK2)To connect speakers to outputs of : 4 ohms, 25V or 70V (BALANCED OUTPUT)To connect speakers to 8-ohm output (UNBALANCED DIRECT OUTPUT) 7 Output Connection (A-906MK2/A-912MK2)To connect speakers to outputs of : 8 ohms, 25V or 70V (BALANCED OUTPUT)To connect speakers to 4-ohm output (UNBALANCED DIRECT OUTPUT)Loosen the screw. Remove 4 screws securing case. Muting and Remote Volume Control Connection 8 Rack Mounting9 OperationVolume Adjustment Tone Control Adjustment Installation Servicing 10 SpecificationsOutput Power Preamp OUT/Power Amp IN Signal to Noise Ratio Controls Indicators Protection Power ConsumptionTemperature Range Weight ColorStandard Accessories Other Features Bridging Input/Output: 100 mV/3.3k ohms unbalanced Aux : 10k ohms, 1V 8 Input gain controls 1 Master gain control Black Output disconnected for approx. 5 seconds after switching power on. 11 Appearance (A-903MK2)Appearance (A-906MK2/A-912MK2) 12 TOA Corporation
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