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1. SAFETY PRECAUTIONS

3

 Be sure to carefully read all the safety instructions in this manual before use.
 Be sure to follow all safety instructions in this manual.
 Please keep this instruction manual for future reference.

Safety Warning and Cautions

Safety Cautions and Warnings are used in this manual to prevent bodily injury and property damage. Before
operating this product please read and follow all safety precautions to avoid potential  safety risks. 

Indicates a potentially hazardous situation which could result in
serious personal injury or death.

Indicates a potentially hazardous situation which could result in
minor or major personal injury or property damage.

When Installing the Unit

When the Unit is in Use

   

Should any of the following issues occur during use, 

   immediately switch off the power and disconnect  
   the power cord from the AC outlet. Make no further
   attempt  to  operate  the malfunctioning product, 
   doing so may cause fire or electric shock. Contact 
   your Dayton Audio dealer for service and repair.

To prevent a fire or electric shock, never open or  
remove the product cover

;

 there are high voltage  

components inside. Refer all servicing and repair  
to your nearest Dayton Audio dealer.

Do not place cups, bowls, or anything containing   
liquid or metal objects on top of the product.

To  prevent  fire  or  electric  shock,  d

o  not  insert 

metal  objects  or  flammable  materials

 

in  the 

cover or vents of this  product

.

Do not expose  this  product  to  rain  or  an    
environment where it could be splashed by water    
or other liquids.

Only use this product with the voltage specified.    
Using higher voltage may result in fire or electric

 

   

shock.

  

Do not cut, kink, damage or modify the power cord.  

 

  

Avoid using the power cord in close proximity to 

  

heaters, and never place heavy objects on the cord. 

 

  

This could result in electric shock or fire.

  

Be sure to replace the speaker terminal cover after

 

 

  

the connections are complete. High voltage is 

 

 

applied to the speaker terminals

.

 

T

o avoid electric 

  

shock

, never touch these  terminals.

 

 

Be sure you ground the amplifier using the safety  

  

ground (earth) terminal to avoid electric shock.  

  

Never ground this product to a gas pipe or other  

  

flammable items.

 

  

Avoid installing or mounting this product 

o

n a

n

  

  

unstable or slanted surface. Doing so may cause

 

  

the unit to fall

,

 resulting in personal injury or  

  

property damage.

1. If you detect smoke or a strange smell coming

from the unit.

2. If any liquid or metal gets inside the product.
3. If the product is dropped or falls and case is

broken.

4. If the power cord is cut or damaged.
5. If the sound becomes distorted.

Summary of Contents for DA120R

Page 1: ......

Page 2: ...UTIONS 3 2 GENERAL DESCRIPTION 5 3 FEATURES AND FUNCTIONS 3 1 Front Panel 6 3 2 Rear Panel 6 4 CONNECTIONS 4 1 Speaker Connections 7 5 7 6 8 7 APPLICATION DIAGRAM 9 8 SPECIFICATIONS 10 9 DIMENSIONAL DIAGRAM 11 OPERATION APPLICATIONS 2 ...

Page 3: ...ton Audio dealer Do not place cups bowls or anything containing liquid or metal objects on top of the product To prevent fire or electric shock do not insert metal objects or flammable materials in the cover or vents of this product Do not expose this product to rain or an environment where it could be splashed by water or other liquids Only use this product with the voltage specified Using higher...

Page 4: ...sunlight near heaters or in locations generating sooty smoke steam When Installing the Unit Do not place heavy objects on top of the product This can result in the product or object to fall causing personal injury or property damage Before powering on the product make sure that the master volume control is set to the lowest setting Loud or high volume noise can damage or impair hearing Do not oper...

Page 5: ...uencies with minimum noise and high fidelity even at high volume 4 Protection against overload short circuit and power fluctuation for optimum reliability 5 VOX feature mutes AUX inputs when input is detected on MIC 1 Time Adjust control allows resumption of music to be sharp or gradual 6 Phantom power available on MIC 1 input for condenser type microphones 7 TEL priority TEL override AUX1 2 and M...

Page 6: ...justment Rotate clockwise to increase treble output and counterclockwise to reduce it 7 MASTER Master volume control 8 POWER SWITCH ON OFF toggle switch 9 POWER Power indicator 10 LEVEL INDICATORS Signal output level indicators 11 PROT Protection mode status indicator This indicator will illuminate if the product is in protection mode due to overheating or overload 12 TEMP High temperature status ...

Page 7: ...vel from 0 20 dB during signal override of all channels by MIC1 input 16 MIC1 input compatible with XLR and 1 4 phono plugs 17 Phantom power ON OFF switch 18 MIC2 MIC3 MIC input MIC 2 3 inputs 1 4 Phono plug 19 TEL INPUT Ground Negative Positive 20 AUX1 AUX2 AUX input AUX 1 2 inputs Auxiliary inputs for additional audio equipment 21 LINE OUT L R RCA outputs for sending audio to additional equipmen...

Page 8: ...IONS 4 2 XLR CONNECTIONS 4 16 4 CONNECTIONS 8 DA120R 41 DA120R 83 Be sure to replace the speaker terminal cover after speaker connections have been made The 4 16 ohm and 70V 100V terminals cannot both be used at the same time Impedances indicated in the figures represent the total speaker system load impedances ...

Page 9: ...only two of the four output connectors to work together If voltage is 70V 100V the speakers must have a transformer make sure the total power wattage of speaker is 15 less than the power wattage of amplifier TROUBLESHOOTING No output All wires are connected properly but there is no audio output Cause 1 No power or wrong connection 2 Fuse is blown 3 Volume is turned off 4 No input signal Alarm soun...

Page 10: ...6 APPLICATIONS 10 AUDIO OUT R L COM ADRESS TAG AUDIO SOURCES LINK INPUTS XLR BAL 1 GND 2 HOT 3 COLD 1 2 3 1 2 3 OUTPUTS INPUTS POWER AMPLIFIER SPEAKERS MIC 2 MIC1 MIC 3 TEL INPUT ...

Page 11: ...7 APPLICATIONS DIAGRAM 70V COM 4 TO PA BASS TREBLE VOLUME PROTECT LEVEL INDICATOR POWER Z 110V 60Hz PT COM 100V COM EB EB LINE OUT MIC1 MIC1 MIC2 MIC3 AUX1 AUX2 TEL MUTE MUTE 11 ...

Page 12: ...AUX in 1kHz preamp out Input sensitivity impedance S N Frequency Response 3dB Tone control Bass 100 Hz Treble 10 kHz Pre Amp Out Total harmonic distortion Line level output Cooling mode Power source Power consumption Net weight Dimensions mm 4 16 70V 100V MIC1 2 3 5 mV 600 ohms AUX 350 mV 10k ohms Better than 90 dB 50 Hz 18 kHz 5 mV 600 ohms Better than 62 dB 10 dB 48V DC 350 mV 10k ohms Better th...

Page 13: ...100 Over 100 Over Over 100 9 DIMENSIONAL DIAGRAM UNIT mm 6 84 84 303 88 94 430 484 13 UNIT mm ...

Page 14: ......

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