Rocktron HUSH Pro - Manual (Page 5)

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POWER LED
When lit, this LED indicates that the HUSH Pro is powered and ready for operation.
HUSH THRESHOLD control
This control sets the point at which the downward expander and dynamic filter begin to
operate.
GATE THRESHOLD control and GATE RELEASE LED
This control is used to determine the level at which the gate will begin to operate. As the
input signal drops below this level, the gate will activate and downward expansion will
begin.
When lit, the Gate Release LED indicates that the input signal has dropped below the
level set by the Gate Threshold control, thus activating the gate and providing additional
downward expansion.
IN/OUT switch and LED
This switch allows for the HUSH Pro to be bypassed when noise reduction is not re-
quired.
When lit, the LED indicates that the HUSH Pro is currently active in the signal path.
REF switch
This switch determines the sensitivity of the HUSH Pro. When using the HUSH Pro with
professional audio equipment providing a nominal output level +4dB, it is recommended
that the "+4dB" setting on the unit as the Threshold adjustment will allow you to optimize
noise reduction for this reference level.
If the "-10" setting is used and the unit is overdriven, the "+4" setting should be used.
**The -10db setting is recommended for all instrument rigs.
Front Panel
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