Manual Behringer DEQ2496 (page 12 of 22) (English)

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ULTRACURVE PRO DEQ2496

3. MENU STRUCTURE AND EDITING

Compressor only:

The compressor features an additional KNEE function, which

makes it possible to achieve a very unobtrusive and musical

form of compression. The KNEE parameter controls the area

around the threshold point, in which the compressor curve is

rounded out.

The KNEE setting range is from 0 to 30 dB and can be entered

with the large data wheel.

A long key press on the B key resets the parameters on the

dynamics pages, however, not the LIMITER settings (see next

chapter 3.4.1).

3.4.1 LIMITER menu

Fig. 3.15: LIMITER menu

On page 2 of the DYN menu, you can change to the LIMITER

page with key B. In general, a limiter can be considered a

compressor, however, one which always uses a maximum

attenuation factor, thus effectively suppressing all signal peaks

and protecting connected power amps and speakers from

overload and possible damage. Here, too, the display shows

how the signal is limited. Also available are a LEVEL meter (in

this case displaying the output signal) and a GAIN meter showing

the level reduction.

The HOLD function determines how long the signal level is

reduced, once the threshold has been exceeded (upper data

wheel). Only when this time has expired (0 - 1,000 ms), will the

RELEASE parameter take over. The control range of the

THRESHOLD parameter (large data wheel) is from 0 to -24 dB,

RELEASE can be adjusted between 20 and 4,000 ms (lower

data wheel). A long key press on the B key resets the LIMITER

parameters to their default values.

+ The LIMITER function is always active and cannot

be switched off. It is also active in bypass mode,

however, only works to a limit value of 0 dB, so as

to avoid digital distortion occurring on the outputs.

3.5 UTILITY menu

The UTILITY menu provides basic defaults settings (GENERAL

SETUP) and MIDI configurations on two pages. The upper and

lower data wheels select the parameters, which can then be

edited with the large data wheel.

+ When you keep the UTILITY key pressed for about

1 s, the ULTRACURVE PRO will be locked and cannot

be accessed any longer (PANEL LOCKED). Keep the

key pressed again to unlock the unit (PANEL

UNLOCKED).

GENERAL SETUP (page 1)

Fig. 3.16: UTILITY menu (page 1)

CONTRAST

Here you can adjust the display contrast to adapt it optimally to

studio/stage environments (large data wheel).

CHANNEL MODE

As already mentioned, you can choose between DUAL MONO

and STEREO LINK mode. In DUAL MONO mode all settings for the

left and right stereo sides can be entered separately. When you

switch to STEREO LINK mode, the settings of one stereo side

will be copied to the other. You can select whether the left side

shall be copied to the right, or the right side to the left (COPY

LEFT -> BOTH or COPY RIGHT -> BOTH). All subsequent editing

will have an effect on both sides simultaneously. Finally, to

activate one CHANNEL MODE, confirm your entry with the B key

(ACCEPT MODE).

GEQ MODE (TRUE RESPONSE)

Due to the design of conventional equalizers there is always a

difference between the adjusted frequency response curve

and the resulting real frequency response. This difference

depends on the frequency and the amount of boost/cut applied.

Adjacent frequency ranges have a mutual influence on each

other, so that the amounts of boost/cut in the individual frequency

bands are added together.

Fig. 3.17: Graphic equalizer without frequency response

correction (UNCORRECTED)

The setting UNCORRECTED retains this mutual influence. With

a specially developed algorithm the ULTRACURVE PRO can make

up for this phenomenon. To use this characteristic, select TRUE

RESPONSE.

Fig. 3.18: Graphic equalizer with frequency response

correction (TRUE RESPONSE)

The resulting real frequency response now corresponds

exactly to the setting made with the graphic equalizer.

GAIN OFFSET (EQ)

Here, you can correct the overall gain of the EQ modules.

RTA NOISE CORRECTION

The algorithm used by the RTA (Real-Time Analyzer, warped FFT)

leads to inaccuracies with wide-spectrum signals such as noise,

due to the asymmetric overlapping of individual frequency ranges.

When the built-in noise generator is on or the AVRG setting in the

RTA menu has been selected, this correction will be made

automatically, and needs not be switched on manually. With all

other signals, however, this function should be off; otherwise,

the individual frequency bands might be displayed incorrectly.

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Behringer DEQ2496 Manual

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