Auto Warmth - dbx Zone Pro 640 User Manual

™
ZonePro
Section 4
Detailed Parameters
The Page Ducker attenuates both the primary source and the Priority source if present. A Page
source Gate can be added using the Mic/Line Insert 1 or 2.
Threshold -40 to +20dBu
Threshold is the level from the priority or page source at which the Ducker will attenuate the
Router source.
Depth Inf to 0dB
This parameter sets the amount of Ducker attenuation.
Attack 0.1 m Sec to 200 m Sec
Attack is how quickly the signal is attenuated by the Ducker
Hold 0.1 to 20.2 m Sec
Hold time is the length of time before the Ducker releases.
Release 0.0 to 10.0 dB/Sec
Release is how quickly the attenuated signal returns to its nominal level.

4.10 - Auto Warmth

®
The ZonePro™ 640 and 640 offer the AutoWarmth® module on each output. AutoWarmth® is
a patent pending process that compensates for naturally occurring bass frequency loss for low
level signals. The Fletcher-Munson Equal Loudness curves show that the perception of low fre-
quency signals decreases quickly with decreasing loudness. AutoWarmth® gradually boosts the
low end in response to the overall loudness of the signal. The result is warm and balanced sig-
nal at low levels.
®
ZonePro ™ User Manual
28