QSC DPA4.2 User Manual page 24

HOME > OUTPUTS > SPKR PROC > LIMITER > AUTO
NOTE: SpkrPwr maximum output depends on the amplifi er and the output confi guration you select. The maximum for separate
channels is 1250 W, a single combined channel (ABCD or AB+CD) can be up to 5000 W depending on the amplifi er.
Step 1 — Set the AUTO Mode Parameters
F1: A B C D
AUTO
Type - the Auto Limiter Type is a protection level and its values are, Mild, Medium and Aggressive. This Type parameter, along with the Power Rating
and Impedance drive an algorithm designed to maximize the performance of your loudspeakers. They set the RMS and Peak threshold values as well
as their attack and release setting.
SpkrPwr - if a single speaker is being driven, the SpkrPwr should be the continuous power rating of that loudspeaker. If multiple speakers are being
driven this value should be the combined power rating for the load.
SpkrImp - if a single speaker is being driven, the SpkrImp should be the nominal impedance of that loudspeaker. If multiple speakers are being
driven this value should be the combined impedance for the load.
HOME > OUTPUTS > SPKR PROC > LIMITER > ADV
NOTE: If you select a QSC Loudspeaker, you will see that the limiter is LOCKED. QSC has given these loudspeakers specifi c limiter
settings tailored for that loudspeaker that should not be changed. If there is a limiter applied in these voicings, you will be able to see
the applied limiter on the graph.
Step 1 — Set the ADV Mode Parameters
F1: A B C D
ADV
TD-000434-00-A
Output
A
Type SpkrPwr SpkrImp
Med 200W 8.0
Output
A
RMSThr PkThr
100.0V 155.0V
Type:
Scroll to select (Type, SpkrPwr, SpkrImp)
Aggressive
Medium
Mild
SpkrPwr:
10.0 W to 1250 KW
SpkrImpd:
2.0 Ω to 16.0 Ω
RMSThr: 3.0V to 100.0V
PkAttk, PkRel, RMSAttk, & RMSRel)
PkThr: 5.0V to 155.0V
PkAttk: 0.10 ms to 20.0 ms
PkRel: 1.00 ms to 1.0 s
RMSAttk: 0.05 s to 10.0 s
RMSRel: 1.0 s to 60.0 s
Thr = Threshold, Pk = Peak, Attk = Attack, Rel = Release
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To edit, press
Turn to adjust parameter
To confi rm, press
To exit, press
Scroll to select (RMSThr, PkThr,
To edit, press
Turn to adjust parameter
To confi rm, press
To exit, press
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