8
Operating controls
0EAK3TOP0LUS©4HRESHOLD,%$)NDICATOR4HIS,%$ILLUMINATESWHENTHEOUTPUTSIGNALEXCEEDSTHELEVELSET
BYTHE0EAK3TOP0LUS©,%6%,CONTROLINDICATINGTHAT0EAK3TOP0LUS©LIMITINGISOCCURRING
&IGUREILLUSTRATESTHEPROTECTIVEACTIONOFTHE0EAK3TOP0LUS©LIMITER4HESIGNALWITHTHETHINLINEWEIGHTREP-
resents an unaltered input signal. As you can see, peaks of the input signal exceed the clamping level. The signal
with the heavier line weight represents the output signal. The peaks of the input signal which exceeded the
clamping level are not allowed to exceed this level at the output. This instantaneous protective action is invalu-
ABLEFORDRIVERPROTECTIONINSPEAKERSYSTEMSANDFORDIGITALRECORDINGWHEREITISDESIRABLETORECORDAShHOTvAS
possible, while still avoiding the disastrous result of running out of headroom. Following this clamping action,
)NTELLIGENT0REDICTIVE,IMITING©TAKESOVERTYPICALLYWITHINMSASLONGASTHEINPUTSIGNALCONTINUESTOEXCEED
THE0EAK3TOP0LUS©THRESHOLD4HISPROGRAMLIMITERQUICKLYATTENUATESTHEINPUTSIGNALTOALEVELSAFELYBELOWTHE
CLAMPINGLEVELTYPICALLYD"LOWERTHANTHECLAMPINGLEVEL4HE0EAK3TOP0LUS©LEVELCONTROLISCALIBRATEDTO
this lower level, so if an absolute ceiling is required, set the level 2 to 3 dB below the front panel setting.
!SIMPLIEDBYTHENAMETHEATTACKANDRELEASETIMESOFTHE)NSTANTANEOUS4RANSIENT#LAMP©AREZEROWHILETHE
)NTELLIGENT0REDICTIVE,IMITING©ATTACKANDRELEASETIMESAREPROGRAMDEPENDENT4HATISFORLARGEREXCURSIONS
over the threshold, the attack time speeds up, and for smaller excursions over the threshold, the attack time
SLOWSDOWN3IMILARLYFORLARGEEXCURSIONSOVERTHETHRESHOLDWHICHCAUSEMORE0EAK3TOP0LUS©GAINREDUCTION
the release time increases and is roughly proportional to the amount of gain reduction that occurred.
3OASYOUCANSEEDBXSEXCLUSIVE0EAK3TOP0LUS©ISATECHNICALLYADVANCEDANDSUPERIORLIMITINGSCHEMEFOR
unrivaled system protection.
Time
Output Signal
Input Signal
Output Signal
Intelligent Predictive Limiting™
Release Time
Attack Time
}
2 dB Typically
Absolute ceiling of the Instantaneous
Transient Clamp™
Intelligent Predictive Limiting™ Level
&IGURE0ROTECTIVE!CTIONOFTHE0EAK3TOP0LUS©,IMITER
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