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ULTRACOUSTIC ACX450/ACX900/ACX1800
4.3 Compressor (only in ACX1800)
The compressor reduces the dynamic range of a signal. Volume
peaks are lowered, and low signals are boosted, so that the
difference between the loudest and the lowest tone of an
instrument or voice is reduced. This results in a more expressive
and homogeneous sound, and the sustain of long tones is
prolonged.
s Switch on the compressor (ON switch ).
s Turn the COMPRESSOR controller slowly in clockwise
direction to increase the compression intensity.
s Compare the compressed and the original signal by
switching the compression ON and OFF (at the ON
switch).
If the input signal to the compressor is high, it operates at its
optimum range. If the signal is low, the effect becomes only
audible when the compressor controller is set to a very high
position. If a compressor is switched on in this position, there is
a risk of sudden level changes. If GAIN is set to a high value,
the same compressor effect is achievable without having to
set the controller to a high value. In this case, the COMPRESSOR
controller does not have to be turned to a position near the stop
in order to achieve any effect. We recommend that you try this
out until you have found the best settings!
5. INSTALLATION
5. INSTALLATION
5.1 Audio connections
With the exception of the balanced LINE jack mono input, all
inputs and outputs of the BEHRINGER ULTRACOUSTIC are
unbalanced mono jack sockets. The LINE OUT connections are
designed as balanced XLR outputs. The CD inputs are designed
as RCA connectors.
+ Please ensure that only qualified persons install
and operate the ULTRACOUSTIC. During installation
and operation, persons handling and using the
equipment must be sufficiently earthed, as
electrostatic discharge might affect the operation
of the ULTRACOUSTIC!
Fig. 5.1: XLR connectors
Fig. 5.2: ¼" stereo TRS connector
Fig. 5.3: ¼" TS connector