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3

When Installing the Unit

•  Do not expose the unit to rain or an environment 

where it may be splashed by water or other liquids, 

as doing so may result in fire or electric shock. 

•  Use  the  unit  only  with  the  voltage  specified  on 

the unit. Using a voltage higher than that which is 

specified may result in fire or electric shock.

•  Do  not  cut,  kink,  otherwise  damage  nor  modify 

the power supply cord. In addition, avoid using the 

power cord in close proximity to heaters, and never 

place heavy objects -- including the unit itself -- on 

the  power  cord,  as  doing  so  may  result  in  fire  or 

electric shock. 

•  Avoid  installing  or  mounting  the  unit  in  unstable 

locations, such as on a rickety table or a slanted 

surface.  Doing  so  may  result  in  the  unit  falling 

down and causing personal injury and/or property 

damage. 

Indicates a potentially hazardous situation which, 

if  mishandled,  could  result  in  death  or  serious 

personal injury. 

WARNING

1. IMPORTANT SAFETY INSTRUCTIONS 

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacture's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including 

amplifiers) that produce heat.

• Do not defeat the safety purpose of the polarized or grounding-type plug. 

  A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a 

third grounding prong. The wide blade or the third prong are provided for your safety. 

If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and 

the point where they exit from the apparatus.

• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or 

sold with the apparatus. 

  When a cart is used, use caution when moving the cart/apparatus combination to avoid 

injury from tip-over.

• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been 

damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have 

fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or 

has been dropped.

2. SAFETY PRECAUTIONS

•  Before installation or use, be sure to carefully read all the instructions in this section for correct and safe 

operation.

•  Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or 

cautions regarding safety.

•  After reading, keep this manual handy for future reference.

Safety Symbol and Message Conventions 

Safety symbols and messages described below are used in this manual to prevent bodily injury and property 

damage  which  could  result  from  mishandling.  Before  operating  your  product,  read  this  manual  first  and 

understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards. 

The  exclamation  point  within  an  equilateral  triangle  is  intended  to  alert  the  user  to  the  presence  of 

important operation and maintenance (servicing) instruction in the literature accompanying the appliance.  

Summary of Contents for A-2030 CE-AU

Page 1: ... A 2030 CE AU A 2060 CE AU A 2120 CE AU A 2240 CE AU Thank you for purchasing TOA s PA Amplifiers Please carefully follow the instructions in this manual to ensure long trouble free use of your equipment This figure represents the A 2120 ...

Page 2: ...EATURES 5 5 NOMENCLATURE AND FUNCTIONS 5 Front 5 Rear 5 6 CONNECTIONS 7 6 1 Input Connections 7 6 2 Output Connections 8 6 3 Example of External Equipment Connections 8 7 MUTING FUNCTION 9 8 INSTALLATION 9 9 VOLUME CONTROL SETTINGS 9 10 BLOCK LEVEL DIAGRAM 10 11 DIMENSIONAL DIAGRAM 11 12 SPECIFICATIONS 12 ...

Page 3: ...t fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the ap...

Page 4: ...p inside the unit and result in fire Also periodically clean the ventilation slots of dust Avoid installing the unit in humid or dusty locations in locations exposed to the direct sunlight near the heaters or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock To avoid electric shocks be sure to switch off the unit s power when connecting speakers B...

Page 5: ... 2 and MIC 3 inputs are equipped with XLR connectors and mute switch control MIC 1 with phantom power for condenser microphones Current limiter circuitry protects transistors and the thermal protection circuitry prevents a failure due to overheat All MIC inputs are electronically balanced input 5 NOMENCLATURE AND FUNCTIONS Front Rear 1 Power switch Press to turn ON the power Press again to turn th...

Page 6: ...unction is operated The connected wire uses more than AWG 24 and please make the length of line less than 10 m 18 Muting level control Adjusts the background music level 0 to 30 dB to be automatically reduced when priority function is operated 19 Phantom switch Selecting to ON position supplies power for condenser microphones from Mic 1 This phantom power is 21 V DC Note Be sure to select OFF posi...

Page 7: ...ic 1 and Mic 2 Connection 3 pin XLR Male Plug XLR Jack connection Pin 1 Earth Pin 2 Hot Pin 3 Cold 6 1 3 AUX input connections RCA pin jack Signal source Tuner Cassette Tape etc One Core Shielded M 1 3 2 3 pin XLR Male Plug Two Cores Sheilded Cable Dynamic MIC ON OFF PHANTOM 1 3 2 M 21 V DC 3 pin XLR Male Plug Two Cores Sheilded Cable ON OFF PHANTOM M 1 3 2 3 pin XLR Male Plug Two Cores Sheilded C...

Page 8: ...tion completion Because high voltage is applied to the speaker terminals never touch these terminals to avoid electric shock CAUTION 6 3 Example of External Equipment Connections 24V COM 4 COM 70V 100V 24V COM 4 COM 70V 100V 24V COM 4 COM 70V 100V Low Impedance Speaker 70 V Line Speaker 70 V Line Speaker 4 16 Ω Speaker 100 V Line Speaker 100 V Line Speaker Radio Tuner or CD Player Cassette Tape Pl...

Page 9: ...Mute SW the mute circuit works promptly It returns to an old state about 3 seconds later when it does break of Mute SW Over 10 cm Over 10 cm Over 10 cm 8 INSTALLATION Keep the unit s all sides over 10 cm 3 94 inches away from object that may obstruct air flow to prevent the unit s internal temperature rise 9 VOLUME CONTROL SETTINGS Output levels are adjustable with individual volume controls For m...

Page 10: ... Mute Level 0 30dB 21V DC Phantom SW 40 60 40 20 20 0 dBV MIC1 600Ω 60dB Balanced OFF ON DC Fuse MIC2 600Ω 60dBV Balanced MIC3 600Ω 60dBV Balanced AUX1 10kΩ 20dBV Unbalanced AUX2 10kΩ 20dBV Unbalanced Rec Out 600Ω 0dBV Unbalanced Mute SW Choke Coil only for A 2240 Power Amp 100V output 40 dBV Pre Amp Output 0 dBV Mixing 20 dBV Aux 20 dBV Mic 60 dBV ...

Page 11: ...11 11 DIMENSIONAL DIAGRAM Unit mm inches This figure represents the A 2120 This figure represents the A 2060 A 2030 CE AU A 2060 CE AU A 2120 CE AU A 2240 CE AU ...

Page 12: ...ntact screw terminal for MIC 1 Output Speaker Out All speaker outputs are floating balanced 100 V 330 Ω 170 Ω 83 Ω 42 Ω 70 V 170 Ω 83 Ω 42 Ω 21 Ω 4 Ω 11 V 15 5 V 22 V 31 V Rec out 0 dB 600 Ω unbalanced RCA pin jack Phantom Power DC 21 V MIC 1 S N Ratio 60 dB or more Tone Control Bass 10 dB at 100 Hz Treble 10 dB at 10 kHz Muting MIC 1 overrides other input signals with 0 30 dB attenuation by mute ...

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