Harman DBX 1066 - Operating Controls; Front Panel Controls; Stereo Link Switch; Expander;Gate Threshold Control

4
Operating Controls
&RONT0ANEL
CHANNEL TWO
1
C
L
Stereo
Couple
EXPANDER / GATE LIMITERCOMPRESSOR
GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBuTHRESHOLDTHRESHOLD THRESHOLD
SC Enable
SC Mon
OverEasy
Contour Auto I/O Meter Bypass
-24 -18 -12 -6 0 +6 +12 +18
-
+
+
24 212730 18 15 12 9 6 4 2 1
-
O +
THRESHOLD RATIO OUTPUT GAINTHRESHOLD ATTACKRATIO RELEASE
-40
-20
+15
0
OFF
-60
dBu
2:1
4:1
3:1
1.2:1 8:1
1.4:1
1.6:1
0
-20
-10 +10
+20
dB
.35
3
1 .15
.04
dB/mSec
4:1
:1
10:1
6:1
1:1
2:1
3:1
OFF
+16
+12
+4
+6
+8
dBu
-10
0
+20
+10
-40
-30
-20
dBu
50
250
125 12.5
5
dB/Sec
PeakStop Plus
6
3TEREO,INK3WITCH - This switch changes the 1066 from two independent compressors into a stereo compressor.
)NSTEREOMODE#HANNELISTHEMASTERAND#HANNELISTHESLAVE%ACHOFTHE#HANNELCONTROLSANDSWITCH
FUNCTIONSWILLBEOVERRIDENANDCONTROLLEDBYTHE#HANNELCONTROLSANDSWITCHESEXCEPTTHE3IDECHAIN-ONITOR
3IDECHAIN%NABLE#ONTOURAND"YPASSSWITCHES!LSO#HANNELS%XPANDER'ATE#OMPRESSOR4HRESHOLDAND
0EAK3TOP0LUS©4HRESHOLDMETERSWILLBEDISABLEDWHILEBOTHCHANNELS'AIN2EDUCTIONMETERSWILLIDENTICALLY
indicate the amount of gain reduction occurring. It is important to note that while Channel 1 is the master as
far as the controls go, both channels have equal precedence as far as signal processing is concerned. The dbx
USES4RUE2-30OWER3UMMING©ANEXTREMELYACCURATEANDMUSICALWAYTOCOMBINEDETECTOROUTPUTSINA
STEREOSITUATION4HESWITCHWILLLIGHTTOINDICATETHATTHEISINTHE3TEREO,INKMODE
%XPANDER'ATE4HRESHOLD#ONTROL - This control sets the level below which gating/expansion occurs. It has an
EFFECTIVECONTROLRANGEOFD"TOD"7HENITISFULLYCOUNTERCLOCKWISETOTHEhOFFvPOSITIONNOGATING
or expansion occurs.
%XPANDER'ATE4HRESHOLD"ELOW,%$4HIS,%$ILLUMINATESWHENTHESIGNALISBELOWTHELEVELSETBYTHE
%80!.$%2'!4%4(2%3(/,$CONTROLANDINDICATESTHATEXPANSIONORGATINGISOCCURRING
%XPANDER'ATE4HRESHOLD!BOVE,%$4HIS,%$ILLUMINATESWHENTHESIGNALISABOVETHELEVELSETBYTHE
%80!.$%2'!4%4(2%3(/,$CONTROLANDINDICATESTHATNOEXPANSIONORGATINGISOCCURRING
%XPANDER'ATE2ATIO#ONTROL4HISCONTROLSETSTHEEXPANSIONRATIOANDVARIESFROMTO)TISIMPORTANT
to note that as the signal passes below the threshold, the input/output gain relationship does not transition
SHARPLYFORMUNITYGAINWHERENOEXPANSIONISOCCURRINGTOTHERATIOSETBYTHE%80!.$%22!4)/CONTROL4HE
SEXPANDERUTILIZESASOFTKNEE/VER%ASYTHRESHOLDCIRCUITANALOGOUSTOTHE/VER%ASYCOMPRESSORCURVE
MADEFAMOUSBYTHESPREDECESSORSANDEMPLOYEDINTHECOMPRESSORSECTIONOFTHE3EE&IGURE4HIS
soft knee contributes to the smooth and natural sounding decay of the 1066 expander making its action virtu-
ally transparent with low to moderate ratio settings. When hard gating is required, higher ratio settings cause
the expander to function like a gate. The expander attack and release times are program-dependent. The detec-
tor intelligently senses the need for fast attack for rapidly-changing signals, and slows down for more stable
signals.
Operating controls