Behringer X2222USB Manuel d'utilisateur télécharger pdf (Page 5)

5 XENYX X1622USB/X1832USB/X2222USB/X2442USB User Manual

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Introduction1.

XENYX Mic Preamp

The microphone channels feature high-end XENYX Mic Preamps that compare

well with costly outboard preamps in terms of sound quality and dynamics and

boast the following features:

130 dB dynamic range for an incredible amount of headroom◊

A bandwidth ranging from below 10 Hz to over 200 kHz for crystal-clear ◊

reproduction of even the ﬁnest nuances

The extremely low-noise and distortion-free circuitry guarantees ◊

absolutely natural and transparent signal reproduction

They are perfectly matched to every conceivable microphone with up ◊

to 60 dB gain and +48 volt phantom power supply

They enable you to use the greatly extended dynamic range of your ◊

24-bit/192-kHz HD recorder to the full, thereby maintaining optimal

audio quality

“British EQ”

The equalizers used for the XENYX Series are based on the legendary circuitry of

top-notch consoles made in Britain, which are renowned throughout the world

for their incredibly warm and musical sound character. Even with extreme gain

settings these equalizers ensure outstanding audio properties.

Multi-eects processor

Additionally, your XENYX mixing console has an eects processor

with 24-bit A/D and D/A converters included, which gives you

16 presets producing rst-class reverb, delay and modulation eects

plus numerous multi-eects in excellent audio quality.

The XENYX mixing consoles are equipped with a state-of-the-art

switched-mode power supply (SMPS). Unlike conventional circuitry

an SMPS provides an optimum supply current regardless of the input

voltage. And thanks to its considerably higher eciency a switched-mode power

supply uses less energy than conventional power supplies.

FBQ Feedback Detection System

The FBQ Feedback Detection System integrated into the graphic EQ

of your X1832USB is one of this mixer’s most outstanding features.

This ingenious circuitry lets you immediately recognize and

eliminate feedback frequencies. The FBQ Feedback Detection System uses the

LEDs in the frequency band faders of the graphic EQ to indicate the critical

frequencies. This way, what once used to be a labor-intensive search for feedback

frequencies is now an activity that even a child could master.

Voice Canceller

We have added another useful feature to the XENYX X1832USB:

the Voice Canceller.

The Voice Canceller is a lter circuitry that lters out vocal portions

from a track. Therefore, this mixing console is ideally suited for use as a

karaoke machine. This feature is also an optimal solution for singers who need

accompanying music for their rehearsals.

CAUTION! !

We should like to draw your attention to the fact that extreme volumes ◊

may damage your hearing and/or your headphones or loudspeakers.

Turn the MAIN MIX faders and phones control in the main section

fully down before you switch on the unit. Always be careful to set the

appropriate volume.

General mixing console functions1.1

A mixing console fulls three main functions:

Signal processing: •

Preampliﬁcation

Microphones convert sound waves into voltage that has to be amplied

several-fold; then, this voltage is turned into sound that is reproduced

in a loudspeaker. Because micro phone capsules are very delicate in their

construction, output voltage is very low and therefore susceptible to

interference. Therefore, mic signal voltage is amplied directly at the mixer

input to a higher signal level that is less prone to interference. This higher,

interference-safe signal level has to be achieved through amplication using

an amplier of the highest quality in order to amplify the signal and add

as little noise to it as possible. The XENYX Mic Preamp performs this role

beautifully, leaving no traces of noise or sound coloration. Interference that

could take place at the preamplication level could aect signal quality

and purity, and would then be passed on to all other devices, resulting in

inaccurate sounding program during recording or playback.

Level-setting

Signals fed into the mixer using a DI-box (Direct Injection) or the output of a

sound card or a keyboard, often have to be adjusted to the operating level of

your mixing console.

Frequency response correction

Using the equalizers found in each channel strip, you can simply, quickly and

eectively adjust the way a signal sounds.

Eects mixing

In addition to the eects processor contained in your mixer, using the

insert connectors on the mono channels and both aux busses lets you insert

additional signal processors into your signal path.

Signal distribution: •

Individual signals adjusted at each channel strip are laid out at the aux sends

and returns, and are either fed into external eects processors or fed back

to the internal eects processor. Then, the signals are brought back into the

main mix either via the aux return connectors or via direct internal wiring.

The mix for the on-stage musicians is also created using the aux sends

(monitor mix). Similarly, for example, signals for recording equipment,

power ampli ers, headphones and 2-track outputs can also be taken.

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Behringer X2222USB Manuel d'utilisateur Page 5

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