Xenyx X1622 USB, User Manual, Page: 4 / 19

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XENYX X2442USB/X2222USB/X1832USB/X1622USB User Manual
1. Introduction
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-effects processor
Additionally, your XENYX mixing console has an effects processor
with 24-bit A/D and D/A converters included, which gives you
16 presets producing first-class reverb, delay and modulation effects
plus numerous multi-effects 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 efficiency 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 filter circuitry that filters 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.
1.1 General mixing console functions
A mixing console fulfils three main functions:
•
Signal processing:
Preamplification
Microphones convert sound waves into voltage that has to be amplified
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 amplified 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 amplification
using an amplifier 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 preamplification level could affect 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
effectively adjust the way a signal sounds.
Effects mixing
In addition to the effects 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 effects processors or fed
back to the internal effects 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 fiers, headphones and 2-track outputs can also be taken.