Technical data

34
SC Low Pass
This diagram shows some settings of the Sidechain frequency controller (SC Freq) in Low Pass
mode (LP). If the lter is set at 100Hz (dark blue curve) for example, full Gain reduction will still oc-
cur at these 100Hz and the high frequencies will have lesser inuence the higher they get. There-
fore in this mode of operation the lter should always be set to the highest frequency you just
about want the compressor to react to.
SC High Pass
Here the controller was turned completely the other way round. In High Pass position (HP) the
approach of the Sidechain lter is slightly dierent. At 100Hz the compressor now hardly reacts to
just this frequency and only the higher frequencies will have an increasing inuence on the Gain
reduction. In practice the controller should therefore be set to the lowest frequency you just about
want the compressor not to react to.
-10
+10
-9
-8
-7
-6
-5
-4
-3
-2
-1
-0
+1
+2
+3
+4
+5
+6
+7
+8
+9
20 30k50 100 200 500 1k 2k 5k 10k 20k
Hz
dBr A
-10
+10
-9
-8
-7
-6
-5
-4
-3
-2
-1
-0
+1
+2
+3
+4
+5
+6
+7
+8
+9
20 30k50 100 200 500 1k 2k 5k 10k 20k
Hz
dBr A
REFERENCE - SC Low Pass & SC High Pass