Atlas Sound 31 Band Graphic Equalizer EQM131 User Manual

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A.   •    TELEPHONE: (800) 876-3333   •   FAX: (800) 765-3435

©2006 ATLAS SOUND LP 

Printed in USA 

 

ATS002536 RevA 10/06 

PP 

Thank for purchasing the Atlas Sound EQM131 equalizer. The EQM131 was design to meet professional quality 
standards. It can be used for live sound or permanent install applications. The EQM131 is a 1/3 octave 31 band 
mono graphic equalizer. This compact 1RU unit features 30mm faders with gain selection of 6dB or 12dB. The 
graphic filters feature a constant Q design to assure you filter interaction is minimal. The EQM offers a variety of 
input and output wiring configurations to make the installation easy. It is equipped with balanced I/O XLR and TRS 
connectors, along with unbalanced RCA jacks. Variable High and Low cut filters are also incorporated along an 
overload indicator.

• Low Noise op amps 

• 30mm Faders

• Selectable boost/cut range 6dB/12dB 

• EQ Bypass Switch

• Constant Q Filters 

• Variable Low & High Cut Filters

• Balanced I/O XLR 

• Balanced I/O 

1

⁄

4

” Jack

• Unbalanced I/O RCA 

• Overload Indicator

• Gain Control 

• Ground Lift

The Atlas Sound EQM131 was designed to be used in a variety of applications. It is designed and manufactured 
using the highest quality components available. This equalizer can be used for live sound, studio monitors, install 
room correction, or sound masking. It is ideal to use this model with the Atlas AA-SMG masking generator.

 

 

 

 

 
•  To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer  
 

all servicing to Atlas Sound. 

•  Should any of the following irregularities occur during use, immediately switch off the power,  
 

disconnect the power cord from the AC outlet and contact Atlas Sound. Do not to attempt to continue  

 

 

operation with the product as this may cause fire or electric shock:

 

 

•  Smoke or strange smell coming from the unit.

 

 

•  If the product falls or the case is damaged.

 

 

•  If water or any metallic objects falls into the product.

 

 

•   If the power supply cord is damaged in any way.

 

 

•  If the unit is malfunctioning.

•  Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's 

 

 

cover, as this may result in electric shock or fire.

•  Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills    
 

into the unit, fire or electric shock may result.

•  Never operate this product or touch the power supply cord during an electrical storm, electric shock may result. 
•  Never exceed the wattage on the product when connecting equipment. Fire and/or property damage may result.