ULTRA-GRAPH PRO GEQ3102

Be sure that there is enough space around the unit for cooling and please do not place the ULTRA-GRAPH PRO on high temperature devices such as power amplifiers etc. to avoid overheating.

4.2Mains connection

Please ensure that the ULTRA-GRAPH PRO is set to the correct supply voltage before connecting the unit to the AC power system! Three triangular markings can be found on the fuse holder at the AC power connection socket. Two of these three triangles will be aligned with one another. The ULTRA-GRAPH PRO is set to the operating voltage shown next to these markings and can be switched over by twisting the fuse holder by 180°. IMPORTANT: This does not apply to export models designed only for 115 V AC!

The mains connection of the ULTRA-GRAPH PRO is made by using the enclosed mains cable and a standard IEC receptacle. It meets all of the international safety certification requirements.

+Please make sure that all units have a proper ground connection. For your own safety, never remove or disable the ground conductor of the unit or of the AC power cable.

4.3 Audio connections

As standard, the BEHRINGER ULTRA-GRAPH PRO is installed with electronically servo-balanced inputs and outputs. The circuit design features automatic hum rejection for balanced signals, permitting trouble-free operation even at the highest operating levels. Externally induced power-line hum, etc. is thus suppressed effectively. The automatic servo function recognizes the presence of unbalanced connectors and adjusts the nominal level internally to avoid level differences between the input and output signals (6 dB correction).

+Please ensure that only qualified persons install and operate the ULTRA-GRAPH PRO. During installation and operation the user must have sufficient electrical contact to earth. Electrostatic charges might affect the operation of the ULTRA-GRAPH PRO!

Output

 

Cable

 

Input

 

Pin 1

 

 

 

 

Ground

 

 

2

1

Shield

1

2

 

Pin 2

= (+) Signal

 

(+) Signal + Hum

 

Positive

(+)Hum + Signal

 

 

3

(-) Signal + Hum

 

3

 

 

 

 

 

 

Pin 3

= (-) Signal

 

 

 

Negative

(-)Hum + Signal

 

 

 

 

 

 

2 x Signal

 

 

 

RFI and Hum

 

 

= Signal + 6 dB

 

 

 

 

 

 

Fig. 4.1: Compensation of interference with balanced connections

4. INSTALLATION

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Behringer GEQ3102 manual Mains connection, Audio connections
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GEQ3102 specifications

The Behringer GEQ3102 is a powerful 31-band graphic equalizer known for its exceptional performance and versatility, making it an ideal tool for sound engineers, musicians, and audio enthusiasts alike. Designed to provide precise control over audio frequencies, this graphic equalizer features two separate channels, allowing for comprehensive sound shaping in a variety of settings such as live performances, studio recordings, and installations.

One of the standout features of the GEQ3102 is its 31 bands of equalization. Each band operates at 1/3-octave intervals, spanning a frequency range from 20 Hz to 20 kHz. This extensive range enables users to fine-tune audio signals with remarkable detail. The equalizer provides a 12 dB boost or cut per band, allowing for substantial adjustments in frequency response to tailor the sound to the specific needs of each environment.

In addition to its impressive frequency handling, the GEQ3102 incorporates high-quality components to ensure clean and transparent audio. The use of low-noise op-amps and precision resistors minimizes distortion and colorations, delivering true sound reproduction. The equalizer is built on a robust chassis, capable of enduring the rigors of touring and live sound applications.

Another important characteristic of the GEQ3102 is its performance-enhancing technologies, which include boost/cut faders and a bypass switch. The faders allow users to make quick and intuitive adjustments, while the bypass function enables instant comparison between the equalized and unprocessed audio. This feature is especially useful for evaluating the impact of adjustments and ensuring the desired sound.

Furthermore, the GEQ3102 is designed with flexible connectivity options, including balanced XLR and TRS inputs and outputs. This ensures compatibility with a wide range of audio equipment, enhancing the versatility of the unit. Additionally, the graphic equalizer features LED level indicators for each channel, offering real-time monitoring of the signal level and ensuring optimal performance.

In summary, the Behringer GEQ3102 is an excellent choice for anyone seeking a reliable and effective graphic equalizer. With its extensive 31-band range, high-quality construction, and user-friendly design, it provides the necessary tools to shape sound accurately and effectively, making it a staple in any audio professional's toolkit. Whether for live sound reinforcement or studio applications, the GEQ3102 is sure to deliver exceptional audio performance.
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