MACKIE U.40d - Manual (Page 17)

17
Owner’s Manual
Owner’
s Manual
24. AUX
These stereo controls allow you to adjust how much
of the channel signal is added to the aux bus. The aux
bus contains the sum of all channels whose aux controls
[24, or 17] are set to more than minimum. The aux bus
feeds the aux outputs [5], typically out to an external
processor. The aux bus is stereo, so the left and right
aux signals are separate and may be used for feeding
stereo processors for example.
See aux [17] on page 15 for more details.
25. LEVEL
These level controls allow you to adjust how much of
the channel signals appear on the main mix bus. They
have no effect on the level of signals going onto the aux
bus, but they do affect the levels going onto the cue bus
if the cue button [18] is pressed.
After the level control, the stereo signals are sent
through a voltage controlled amplifier (VCA) that is af-
fected by the position of the crossfader [27].
26. CURVE
This switch affects how the crossfader operates, and
allows for some fast crossfading DJ work:
In the slow position (up), the crossfade from chan-
nel 3 to channel 4 occurs linearly over the complete
movement of the crossfader. For example, channel 3 is
maximum and channel 4 minimum when the crossfader
is fully left, and channel 3 is minimum and channel 4
maximum when the crossfader is fully right.
In the fast position (down), the crossfade from chan-
nel 3 to channel 4 occurs over a small movement of the
crossfader. For example, channel 3 is maximum and
channel 4 minimum when the crossfader is fully left,
and channel 3 is minimum and channel 4 maximum
when the crossfader is moved just slightly to the right.
27. CROSSFADER
The crossfader is used to fade between channel 3 and
4 in the main mix bus. It has no effect on the aux bus, or
the headphones when cue is enabled
When the crossfader moves left, then channel 3 in-
creases in volume in the main outputs, while channel 4
decreases in volume. When the crossfader moves to the
right, channel 4 increases while channel 3 decreases.
With two turntables connected to channels 3 and 4,
the crossfader allows you to set up and run a nice DJ
system.
The characteristics of how the crossfader affects the
audio signal are determined by the curve switch [26].