Crossfader And Vcf - ALLEN & HEATH XONE 62 User Manual

Crossfader and VCF

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 from each music channel and can be easily replaced if it becomes damaged or worn through
exceptional mechanical operation. The high quality Penny & Giles type is used on the model.
The XONE:62 is unique in being the first DJ mixer to include an analogue voltage controlled filter (VCF) section.
These filters provide live performance tools far more powerful than any equaliser or kill switch. They produce the
same warm analog resonant frequency sweeping sound as made popular by well known classic analogue
synthesisers, but using the latest high performance technology for quiet, stable operation.
1 VCA Crossfader. The XONE:62 uses four
high performance voltage controlled amplifiers
(VCA), a pair for each side of the stereo crossfader.
The robust 45mm fader 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.
2 XY Indicators. A colour coded led above each
side of the crossfader helps you visually check
which channel is routed to which side, green for X,
yellow for Y.
3 Crossfader Curve. The VCA system allows
that the fader law (curve) to be easily changed to
suit the style of mixing. Set the tamperproof
underpanel CURVE switch to the position required.
Two standard curves are available. Experiment with
both to understand their effect on the sound:
22
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.
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.
0dB
-20
UP
-40
-60
-80
0dB
-20
-40
DOWN
-60
-80
DIP
CUT
XONE:62 User Guide