ALLEN & HEATH XONE 464, User Manual

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24 XONE:464 User Guide
Crossfader
The crossfader is the one feature that instantly sets the DJ mixer apart from a
conventional mixer. It is applied to the stereo (music) channels and lets you
smoothly fade from one track into another using a single fader. It is also used
as a creative performance tool to layer or interact between two sounds when cut
or scratch mixing . It is fully assignable and can be easily replaced if it becomes
damaged or worn through exceptional mechanical operation.
VCA CROSSFADER The XONE:464 uses four high
performance voltage controlled amplifiers (VCA), a pair
for each side of the stereo crossfader. The robust 45mm
fader simply produces a DC control voltage which
determines the signal level of the VCAs. The voltage is
filtered to prevent any audible noise, clicks or
scratchiness resulting should the fader track become
worn. This benefit would not be possible if the signal
were routed through a conventional audio fader.
ASSIGNING A CHANNEL TO THE CROSSFADER Each of the 6 stereo
channels can be routed direct to the main Mix1 or to either side of the
crossfader. The output of the crossfader is routed to Mix1.
Press XFADE ON to route the stereo channel signal to the crossfader. To route
to the left (X) side make sure the XY switch below is in its up position. Press
XY to route to the right (Y) side. The green X led or yellow Y led light to show
which side is routed. Both leds are off if the signal is not routed through the
crossfader. An led above each side of the crossfader helps you visually check
which channel is routed to which side.
CHANGING THE CROSSFADER CURVE Using the VCA system means that
the fader law (curve) can be easily changed to suit the style of mixing. Set the
crossfader CURVE switch to the position required. Two standard curves are
available. Experiment with both to understand their effect on the sound:
Cut Curve When the switch is pressed each signal has no attenuation in the
middle position. Attenuation starts as the fader moves beyond the middle. This
gives a more dramatic response better suited to cut or scratch mixing, layering
different sounds, or to emphasis a mix.
Dip Curve With the switch in its normal up position each signal is attenuated
by 6dB in the middle position. This means that there is no overall change in
level as the two similar signals mix, ideal for seamless beat mixing when fading
smoothly from one track to another.
XFADE TO AUX These controls feed the Aux system with the output of the
crossfader. For example, you could feed the DJ mix to the presenter (MC)
stage monitor mix, send music only to mono or stereo zones, or add effects to
the music mix . Aux 1 and 2 sum the left and right signals to provide two mono
sends. Aux 3-4 and 5-6 are two stereo sends.
XFADE PAN Adjust PAN to change the balance between the left and right
crossfader output signals. Use this to correct an imbalance in the stereo output,
or as a dynamic performance effect. For normal performance make sure the
PAN control is in its detented centre position.