dbx AFS 224 Посібник користувача - Сторінка 15

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dbx AFS 224 Посібник користувача
AFS 224
Application 2 - Insert On the Main Stereo Outputs of a Mixing Console
This application is ideal for dedicated feedback suppression on the outputs of a mixing con-
sole. This application provides the user with dual channels of 24 filters of feedback suppres-
sion per channel.
1.
Connect the stereo output inserts of the mixer to the inputs of the AFS 224.
2. Connect the outputs of the AFS 224 to the insert returns of the console.
3. Apply power to the mixer and amplifiers.
For maximum performance and proper operation, the input signal to the dbx 224 must cause
the "0" dBu LED to light fairly consistently and the "+10" dBu LED to light occasionally. Hookup
at the insertion point since the insert points on most mixers are pre output fader. This allows
the proper signal level to be fed to the 224 without the channel or output fader affecting the
level as the fader is moved up or down. Be sure to check the mixer's manual for the nominal
operating point for the insert jacks, and then select the +4dBu or -10dBV switch on the back of
the 224 accordingly.
4
6
2
8
2
0
10
Aux 1
4
6
2
8
2
0
Aux 2
10
0 +1
-1
-2
+2
-2
-3
+3
-3
-4
+4
-4
-5
+5
Pan
Mute
Mute
L / R
L / R
+10
+10
+5
+5
0
0
-5
-5
-10
-10
-20
-20
-30
-30
-∞
-∞
1
®
Application Guide
Output to Speaker
Mixer Output to Input
Channel 1
AFS 224
4
6
4
6
4
6
4
6
4
6
4
6
8
2
8
2
8
2
8
2
8
2
8
2
0
10
0
10
0
10
0
10
0
10
0
10
0
Aux 1
Aux 1
Aux 1
Aux 1
Aux 1
Aux 1
4
6
4
6
4
6
4
6
4
6
4
6
8
2
8
2
8
2
8
2
8
2
8
2
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
0 +1
0 +1
0 +1
0 +1
0 +1
0 +1
-1
-1
-1
-1
-1
-1
-1
+2
-2
+2
-2
+2
-2
+2
-2
+2
-2
+2
-2
+3
-3
+3
-3
+3
-3
+3
-3
+3
-3
+3
-3
+4
-4
+4
-4
+4
-4
+4
-4
+4
-4
+4
-4
-5
+5
-5
+5
-5
+5
-5
+5
-5
+5
-5
+5
-5
Pan
Pan
Pan
Pan
Pan
Pan
Mute
Mute
Mute
Mute
Mute
Mute
L / R
L / R
L / R
L / R
L / R
L / R
+10
+10
+10
+10
+10
+10
+5
+5
+5
+5
+5
+5
0
0
0
0
0
0
-5
-5
-5
-5
-5
-5
-10
-10
-10
-10
-10
-10
-20
-20
-20
-20
-20
-20
-30
-30
-30
-30
-30
-30
-∞
-∞
-∞
-∞
-∞
-∞
2
3
4
5
6
7
Output to Speaker
Mixer Output to Input
Channel 2
Insert
AFS 224
Returns
4
6
4
6
4
6
8
2
8
2
8
10
0
10
0
10
Aux 1
Aux 1
Aux 1
4
6
4
6
4
6
8
2
8
2
8
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0 +1
0 +1
0 +1
-1
-1
+2
-2
+2
-2
+2
+3
-3
+3
-3
+3
+4
-4
+4
-4
+4
+5
-5
+5
-5
+5
Pan
Pan
Pan
Mute
Mute
To Power Amp
L / R
L / R
+10
+10
+5
+5
0
0
-5
-5
-10
-10
-20
-20
-30
-30
-∞
-∞
Output A Output B
8
Operation
AFS 224 User Manual
8