Behringer Ultragraph Digital DEQ1024 Owner's Manual

ULTRAGRAPH DIGITAL DEQ1024

Additional applications of your DEQ1024 are possible in the studio. 

Your imagination has no limits. Here are only some of the examples:
As equalizer for your studio monitors:
You can perform graphic equalization of your monitor sound. Besides, you can 

supress narrow-band room resonances. An analyzer, such as the one integrated 

into the BEHRINGER digital equalizer ULTRACURVE PRO DEQ2496, can help you in 

your search for room resonances and a linear frequency response.
For general sound processing:
The equalizer lets you process both individual and sum signals. To process 

individual signals, you should connect the ULTRAGRAPH DIGITAL via the channel 

insert on your mixing console. To control several signals, either use a subgroup 

or a main insert. Especially in mastering studios, the sound of a finished mix is 

nowadays still processed with equalizers. Often, the mixes are not evened out, 

meaning certain frequency ranges are featured too prominently while others 

can hardly be heard. A graphic equalizer lets you even out the intensity of such 

frequency ranges, so you end up with a homogenous sound characteristics.

Be it in the studio, on the stage or in radio plays, the ULTRAGRAPH DIGITAL can 

become an indispensable tone tool. You can for example change the sound of a 

voice so that it sounds like it’s coming through the phone, or you can prominently 

filter the sound of instruments so that they fit well into an existing mix.
The following tables represent the connection between frequencies and their 

acoustic meaning. They should encourage you to start using your DEQ1024 in 

many creative ways.

40 to 125

Sense of power in some outstanding bass singers.

160 to 250

Voice fundamentals.

315 to 500

Important for voice quality.

630 to 1 k

Important for voice naturalness. Too much boost 

in the 315 to 1 kHz range produces a  

telephone-like quality.

1.25 k to 4 k

Voice fricatives-accentuation of vocals. Important 

for speech intelligibility. Too much boost between 

2 and 4 kHz can mask certain speech sounds e.g. 

“m”, “b”, and “v” can become indistinguishable. 

Too much boost anywhere between 1 and 4 kHz 

can produce “listening fatigue”. Vocals can be 

highlighted by slightly boosting the vocal at 

3 kHz and at the same time slightly dipping the 

instruments at the same frequency.

5 k to 8 k

Accentuation of voice. The range from 1.25 to 8 kHz 

governs the clarity of voice.

10 k to 16 k

Too much boost causes sibilance.

Tab. 3.1: Frequency allocation (voice)

31 to 63

Fundamentals of bass drum, tuba, double bass 

and organ. These frequencies give music a sense 

of power. If over-emphasised they make the music 

“muddy”. The50or60Hzbandisalsoused to reject AC 

mains hum.

80 to 125

Fundamentals of lower tympani. Too much boost 

produces excessive “boom”. 100 or 125 Hz are also 

used for hum rejection.

160 to 250

Drum and lower bass. Too much boost produces 

excessive “boom”. Also useful for 3rd harmonic 

mains hum rejection.

315 to 500

Fundamentals of strings and percussion.

630 to 1 k

Fundamentals and harmonics of strings, keyboards 

and percussion. Boosting the 600 to 1 kHz range can 

make instruments sound horn-like.

1.25 k to 4 k

Drums, guitar, accentuation of vocals, strings and 

bass. Too much boost in the 1 to 2 kHz range 

can make instuments sound tinny. Too much 

boost anywhere between 1 to 4 kHz can produce 

“listening fatigue”.

5 k to 8 k

Accentuation of percussion, cymbals and snare 

drum. Reduction at 5 kHz makes overall sound more 

distant and transparent. Reduction of tape hiss 

and system noise. The 1.25 to 8 kHz governs clarity 

and definition.

10 k to 16 k

Cymbals and over all brightness. Too much boost 

causes sibilance. Reduction of tape hiss and 

system noise.

Tab. 3.2: Frequency allocation (instruments)

The BEHRINGER ULTRAGRAPH DIGITAL requires two height units (2 HU) for 

being installed into a 19” rack. Please allow at least an extra 4” of space for the 

connectors on the rear panel.
Also, please make sure that sufficient ventilation of the unit is provided for, 

and never put the device onto an amp or similar equipment to avoid overheating.
Please use M6 machine screws and nuts to install your DEQ1024 into a rack. 

You will need many different cables for the various applications. The following 

illustrations show how these cables should be laid out. Please use exclusively 

high-grade cabels.
The audio connectors of the ULTRAGRAPH DIGITAL are electronically balanced and  

ensure automatic hum and noise reduction.
Of course, you can also connect equipment featuring un-balanced outputs. 

To this end, use either mono jacks or connect ring and sleeve of the stereo jack 

(bridge pin 1 and pin 3 when using XLR connectors).