dbx AFS 224 Посібник користувача - Сторінка 17

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dbx AFS 224 Посібник користувача
AFS 224
Application 4- Connected Inline with the Outputs of a Mixer
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 output channel of the mixing console.
1.
Connect the outputs from the mixer to the inputs of the AFS 224.
2. Connect the outputs of the AFS 224 to the power amps.
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.
The input level to the amplifiers may have to be reduced in this situation so that they are not
overdriven by the signal from the 224.
®
Applications Guide
Output to Speaker
Output to Power Amp
Mixer Output to Input
Channel 1
AFS 224
4
6
4
6
4
6
4
6
4
6
2
8
2
8
2
8
2
8
2
8
2
0
10
0
10
0
10
0
10
0
10
0
Aux 1
Aux 1
Aux 1
Aux 1
Aux 1
4
6
4
6
4
6
4
6
4
6
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
0 +1
0 +1
0 +1
0 +1
0 +1
-1
-1
-1
-1
-1
-2
+2
-2
+2
-2
+2
-2
+2
-2
+2
-2
-3
+3
-3
+3
-3
+3
-3
+3
-3
+3
-3
-4
+4
-4
+4
-4
+4
-4
+4
-4
+4
-4
-5
+5
-5
+5
-5
+5
-5
+5
-5
+5
-5
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
-∞
-∞
-∞
-∞
-∞
-∞
1
2
3
4
5
Output to Speaker
Output to Power Amp
Mixer Output to Input
Channel 2
AFS 224
4
6
4
6
4
6
4
6
4
6
8
2
8
2
8
2
8
2
8
10
0
10
0
10
0
10
0
10
Aux 1
Aux 1
Aux 1
Aux 1
Aux 1
4
6
4
6
4
6
4
6
4
6
8
2
8
2
8
2
8
2
8
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0
Aux 2
10
0 +1
0 +1
0 +1
0 +1
0 +1
-1
-1
-1
-1
-1
+2
-2
+2
-2
+2
-2
+2
-2
+2
+3
-3
+3
-3
+3
-3
+3
-3
+3
+4
-4
+4
-4
+4
-4
+4
-4
+4
+5
-5
+5
-5
+5
-5
+5
-5
+5
Pan
Pan
Pan
Pan
Pan
Mute
Mute
Mute
Mute
L / R
L / R
L / R
L / R
+10
+10
+10
+10
+5
+5
+5
+5
0
0
0
0
-5
-5
-5
-5
-10
-10
-10
-10
-20
-20
-20
-20
-30
-30
-30
-30
-∞
-∞
-∞
-∞
Output A Output B
6
7
8
Operation
AFS 224 User Manual
10