Toa BG-115 Operating Instructions Manual
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Toa BG-115 Operating Instructions Manual

Mixer power amplifier
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MIXER POWER AMPLIFIER
TO REDUCE THE RISK OF ELECTRICAL
SHOCK, DO NOT REMOVE COVER. NO
USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
OPERATING INSTRUCTIONS
The lighting flash with arrowhead within a
triangle is intended to tell the user that
parts inside the product are a risk of
electric shock to persons.
The exclamation point within a triangle is
intended to tell the user that important
operating and servicing instructions are
in the papers with the appliance.
TOA Corporation
BG-115
BG-130

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Summary of Contents for Toa BG-115

  • Page 1 REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference. TOA Corporation OPERATING INSTRUCTIONS BG-115 BG-130 The lighting flash with arrowhead within a...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ... 3 2. GENERAL DESCRIPTION 3. FEATURES ... 5 4. NOMENCLATURE Front Panel ... 6 Rear Panel ... 7 5. INPUT CONNECTIONS 6. OUTPUT CONNECTIONS 7. MUTING FUNCTION 8. MIC/TEL INPUT IMPEDANCE SELECTION 9. JUMPER WIRE SETTING ... 9 10.

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS · Be sure to read the instructions in this section carefully before use. · Make sure to observe the instructions in this manual as the safety messages regarded as very important precautions are included. · We also recommend you keep this instruction manual handy for future reference. Do not block any ventilation openings.

  • Page 4: Safety Precautions

    AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.
  • Page 5 Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result.

  • Page 6: General Description

    2. GENERAL DESCRIPTION TOA's BG-115 and BG-130 are mixer/power amplifiers, and can mix up to three signals. Rated at 15 watts (BG-115) and 30 watts (BG-130), these amplifiers are ideal for applications that require small sound reinforcement systems. Any microphone with impedance of less than 600 Mic/Tel selector switch to the "TEL"...

  • Page 7: Nomenclature

    4. NOMENCLATURE [ Front Panel ] Power switch Power is switched on and off with each depression of this switch. Power indicator Lights green-when the power is switched on. Signal level indicator Lights green when input signal levels exceed -30 Peak indicator Lights red when signal levels approach the signal clipping point.

  • Page 8: Rear Panel

    [ Rear Panel ] AC power cord Connects to the wall AC outlet. AC outlet (Unswitched) Supplies power of up to 500 W to auxiliary equipment. Output terminals Connect to speakers. MOH output terminals (transformer-isolated output) Connect to the telephone system. Muting terminals Shorting this terminal mutes signals input to the muting circuit.

  • Page 9: Input Connections

    5. INPUT CONNECTIONS Mic/Tel input connections • AUX input connections 6. OUTPUT CONNECTIONS • Output terminals The amplifier has three speaker outputs: 4 Class 2 wiring may be used. Note : The impedance in the figure below represents the total impedance of the speaker system. •...

  • Page 10: Muting Function

    Signals to the AUX input and Program input are muted. Turn the sensitivity control fully counterclockwise when using this function. The BG-115 (BG-130) is set to mute the AUX and Program inputs by the factory. To mute the Mic/Tel input instead of the AUX/Program inputs, change the position of the jumper on the internal circuit board.

  • Page 11: Rack Mounting

    11. RACK MOUNTING To mount the BG-115 (BG-130) in a standard 19-inch equipment rack, use the optional MB-25B-BK or MB- 25B-J Rack Mounting Kit. [MB-25B-BK] Attach the MB-25B-BK to the amplifier using the supplied four screws. When using other screws, see to it that each screw is shorter than 15 mm.

  • Page 12: Volume Setting

    12. VOLUME SETTING Output levels are adjustable with individual volume controls. For music play or announcement, adjust the corresponding volume control so that the signal indicator lights intermittently. Note that the sound quality is downgraded when the peak indicator remains lit. 13.

  • Page 13: Specifications

    Weight * Can be converted into the transformer-isolated input by installing an optional transformer. Note : The design and specifications are subject to change without notice for improvement. BG-115 3-channel mixer power amplifier 15 W RMS 50 - 20,000 Hz (± 3 dB) 0.5 % or less, at 1 kHz, rated output...

This manual is also suitable for:

Bg-130

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