Atlas Sound EQM131 specifications Installation Considerations

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EQM131 31 BAND GRAPHIC EQUALIZER

INSTALLATION CONSIDERATIONS

OWNER'S MANUAL

Hook-ups and Cabling: The EQM131 Equalizer is designed for nominal +4dBu levels.

The equalizer can be used with either balanced or unbalanced sources, and the outputs can be used with either balanced or unbalanced loads, provided the proper cabling is used. A balanced line is defined as two-conductor shielded cable with the two center conductors carrying the same signal but of opposite polarity when referenced to ground. An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the signal and the shield at ground potential.

Input Cable Configurations: The equalizer has an input impedance of 20kΩ balanced and 15kΩ unbalanced. This makes the EQM131 Equalizer’s audio inputs suitable for use with virtually any low source impedance (under 2kΩ).

Output Cable Configurations: The equalizer’s output is capable of driving a 2kΩ load to +18dBu. For maximum hum rejection with a balanced source, avoid common grounding at the equalizer’s inputs and outputs. Most balanced (3- conductor) cables have the shield connected at both ends. This can result in ground loops which cause hum. If hum persists try disconnecting the shield on one or more of the cables in the system, preferably at the input of a device, not at the output.

 

 

 

 

 

 

 

SLEEVE

 

 

 

 

 

 

 

(GND)

2

 

1

1

- GROUND / SHIELD

1

2

TIP

 

(HOT)

 

2

- HOT

 

3

 

 

3

 

 

 

 

 

 

3

- COLD

 

 

 

 

 

 

 

 

INPUT

 

 

 

XLR CONNECTOR

 

 

OUTPUT

 

 

 

 

(BALANCED)

 

 

RCA CONNECTOR

 

 

 

 

 

 

 

(UNBALANCED)

TIP

SLEEVE

TIP

SLEEVE

 

(HOT)

(GND)

(HOT)

(GND)

SLEEVE

 

SLEEVE

 

 

 

 

RING

RING

 

TIP

(COLD)

TIP

1/4" TS CONNECTOR

1/4" TRS CONNECTOR

 

(UNBALANCED)

 

(BALANCED)

Specifications are subject to change without notice

AtlasSound.com

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

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Contents AtlasSound.com Contents Important Safety Instructions Message Conventions and Safety SymbolsFeatures Safety PrecautionsIntroduction ApplicationsAtlasSound.com Front Panel Description Rear Panel Description Installation Considerations Connecting the EQM131 Specifications AtlasSound.com Service Limited Warranty

EQM131 specifications

The Atlas Sound EQM131 is a powerful and innovative audio equalizer designed for professionals in various audio environments, including sound reinforcement, recording studios, and live sound applications. This 31-band graphic equalizer offers precise control over sound frequencies, allowing users to tailor the audio output to suit specific acoustical needs, making it an ideal tool for enhancing sound quality.

One of the primary features of the EQM131 is its extensive 31-band configuration, which covers a frequency range from 20 Hz to 20 kHz. This wide range allows users to address both low and high frequencies in their audio mix, ensuring that all aspects of the sound spectrum are well represented. Each band provides a 12 dB cut or boost, offering fine control over individual frequency ranges. This level of precision is essential for correcting frequency imbalances and managing feedback in live sound situations.

The EQM131 is designed with high-quality components that ensure minimal signal degradation. The use of advanced circuit technology contributes to a low noise floor and high dynamic range, making it suitable for professional audio applications where clarity and detail are paramount. The unbalanced inputs and outputs, along with the ability to connect in various configurations, enhance the versatility of this equalizer, allowing it to seamlessly integrate into any audio setup.

Another notable characteristic of the EQM131 is its user-friendly interface. The layout features clearly marked controls and LED indicators that provide real-time feedback on the equalization process. The smooth sliders enable precise adjustments, while the bypass switch allows users to easily compare processed and unprocessed signals. This intuitive design helps professionals focus on their sound without being hindered by complicated controls.

In addition to its performance capabilities, the EQM131 is built to withstand the rigors of touring and live events. Its sturdy construction ensures durability and longevity, making it a reliable choice for audio technicians on the go.

Overall, the Atlas Sound EQM131 graphic equalizer stands out as a versatile and robust tool for audio professionals seeking to achieve the highest level of sound quality in their projects and performances. With its comprehensive features and advanced technologies, it provides the necessary control and precision to master any audio environment effectively.