Nady Systems GEQ 231, GEQ 131LF, GEQ 215LF owner manual Graphic Equalizer GEQ Series, Features

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FEATURES

GEQ 131/131LF

Single Channel 31 Band Graphic Equalizers

20

25

31.5

40

50

63

80

100

125

160

200

250

315

400

500

630

800

1K

1.25K

1.6K

2K

2.5K

3.15K

4K

5K

6.3K

8K

10K

12.5K

16K

20K

+12

10

 

 

 

 

 

+6

 

 

GEQ 131LF

+3

 

 

0

5

 

31 BAND GRAPHIC EQUALIZER

-3

40

 

 

15K

 

ON

60

 

BYPASS

RANGE

 

15

7K

22K

 

 

-6

 

 

 

 

 

OFF

-12

10

250 3K

50K

 

POWER

0

 

 

 

 

 

 

HI PASS

LOW PASS

CLIP

–6 –12

LEVEL

GEQ 215/215LF

2 Channel 15 Band Graphic Equalizers

GEQ 231

2 Channel 31 Band Graphic Equalizer

WARNING

CAUTION!

TO REDUCE THE RISK OF FIRE, RE

 

PLACE ONLY WITH SAME TYPE FUSE.

ATTENTION!

UTILISER UN FUSIBLE DE RECHANGE DE

 

MEME TYPE.

WARNING!

TO REDUCE THE RISK OF FIRE OR

 

ELECTRIC SHOCK. DO NOT EXPOSE

 

THIS PRODUCT TO RAIN OR MOISTURE.

 

DO NOT REMOVE CHASSIS (OR BACK).

 

NO USER-SERVICEABLE PARTS INSIDE.

 

REFER SERVICING TO QUALIFIED

 

PERSONNEL.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Graphic Equalizer GEQ Series

GEQ 131: 1 Channel, Single Rack Space, 31—1/3rd Octave Bands

GEQ 131LF: 1 Channel, Double Rack Space, 31—1/3rd Octave Bands, Long Throw Faders (60mm travel)

GEQ 215: 2 Channel, Single Rack Space, 15—2/3rd Octave Bands Each Channel

GEQ 215LF: 2 Channel, Double Rack Space, 15—2/3rd Octave Bands Each Channel, Long Throw Faders (60mm travel)

GEQ 231: 2 Channel, Double Rack Space, 31—1/3rd Octave Bands Each Channel

Active balanced (XLR and 1/4" TRS) and unbalanced (RCA) input/output connectors

Constant Q bandwidth from each filter with a 3% center frequency accuracy

Parallel filter design for minimal phase distortion

Ultra low-noise circuitry

Variable low-cut and low pass filters, 12dB/octave (GEQ 131/ 131LF/GEQ 231), switchable filters (GEQ 215LF)

Selectable range 6dB or 12dB

Variable input level control

Equalizer ON/OFF bypass switch

Peak (overload threshold) LED

Internal power supply with AC input and selectable line voltage (110-240VAC, 50/60Hz)

Ground lift switch

Power off automatic bypass function

An equilateral triangle enclosing a lightening flash/arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product’s enclo- sure, which may be of sufficient magnitude to constitute a risk of electric shock.

An equilateral triangle enclosing an exclamation point is intended to alert the user to the presence of important operating and service in- structions in the literature enclosed with this unit.

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Contents OWNER’S’S Manual Congratulations GEQ-SeriesGraphic Equalizer GEQ Series FeaturesInput/Output Connections Power ConnectionPrecautions GEQ 215/215LF Rear Panel Controls and Connections Sound Reinforcement Applications Musical Instrument ApplicationsStudio Applications Outputs WeightEqualizer InputsPage Service for Your Nady Audio Product
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GEQ 131, GEQ 215, GEQ 215LF, GEQ 131LF, GEQ 231 specifications

The Nady Systems GEQ 215 is a powerful graphical equalizer designed to enhance the sound quality and performance of audio systems. Renowned for its versatile application in live sound reinforcement, broadcasting, and studio recordings, the GEQ 215 exhibits robust features that make it essential for audio professionals and enthusiasts alike.

One of the core features of the GEQ 215 is its 15-band equalization, which allows users to tailor the frequency response of their audio signals with precision. Each band offers a range of ±12 dB of gain adjustment, empowering users to effectively boost or cut specific frequency bands. This level of control is vital for addressing common audio issues such as feedback, resonance, and tonal imbalances, ensuring that every sound source in the mix shines through clearly.

The GEQ 215 utilizes a 1/3-octave frequency center spacing, allowing for fine-tuned adjustments across the audible spectrum, from 20 Hz to 20 kHz. This wide range ensures that both low-end and high-end frequencies can be manipulated effectively, making it suitable for various applications, including musical performances, corporate events, and public speaking engagements.

Another standout feature of the GEQ 215 is its user-friendly interface. The front panel is equipped with backlit sliders that provide clear visual feedback, making it easy to identify settings even in low-light environments. Additionally, the unit has a bypass switch, allowing users to compare the processed and unprocessed audio signal quickly, which is essential for making informed adjustments during live performances or studio sessions.

The GEQ 215 also boasts high-quality components and construction aimed at ensuring reliability and durability. Balanced XLR and 1/4" TRS inputs and outputs allow for seamless integration into various audio setups, minimizing noise and maximizing signal integrity. Its rugged metal chassis is designed to withstand the rigors of both touring and permanent installation, making it a reliable choice for any sound engineer.

Furthermore, the device incorporates advanced technologies that enhance its performance. With a low-frequency response that features a high-pass filter, the GEQ 215 can effectively reduce rumble and unwanted low-frequency noise. It also includes LED level metering for each band, allowing users to monitor signal levels visually, preventing distortion and overload.

Overall, the Nady Systems GEQ 215 stands out as a high-performance equalizer that combines superior sound quality, user-friendly operation, and robust construction. With its comprehensive features, it remains an invaluable tool for achieving optimal sound in any audio environment. Whether for a live concert or a recording session, the GEQ 215 is equipped to deliver outstanding results.