dbx Pro AFS 224 user manual Output to Speaker

AFS 224

Application Guide

Operation

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.

Output to Speaker

Output to Speaker

																			Mixer Output to Input												Mixer Output to Input
																								Channel 1							Channel 2					Insert
																									AFS 224						AFS 224					Returns
4		6		4		6		4		6		4		6		4		6		4		6		4	6			4	6	4	6			4	6
2			8	2			8	2			8	2			8	2			8	2			8	2		8	2		8	2		8	2		8
0	Aux 1		10	0	Aux 1		10	0	Aux 1		10	0	Aux 1		10	0	Aux 1		10	0	Aux 1		10	0	Aux 1	10	0	Aux 1	10	0	Aux 1	10	0	Aux 1	10
4		6		4		6		4		6		4		6		4		6		4		6		4	6			4	6	4	6			4	6
2			8	2			8	2			8	2			8	2			8	2			8	2		8	2		8	2		8	2		8
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	Aux 2	10	0	Aux 2	10	0	Aux 2	10	0	Aux 2	10
-1 0 +1				-1 0 +1				-1 0 +1				-1 0 +1				-1 0 +1				-1 0 +1				-1 0 +1				-1 0 +1		-1 0 +1				-1 0 +1
-2			+2	-2			+2	-2			+2	-2			+2	-2			+2	-2			+2	-2		+2	-2		+2	-2		+2	-2		+2
-3			+3 -3				+3 -3				+3 -3				+3 -3				+3 -3				+3 -3			+3 -3			+3	-3		+3 -3			+3
-4			+4	-4			+4	-4			+4	-4			+4	-4			+4	-4			+4	-4		+4	-4		+4	-4		+4	-4		+4
-5	Pan	+5		-5	Pan	+5		-5	Pan	+5		-5	Pan	+5		-5	Pan	+5		-5	Pan	+5		-5	Pan +5		-5	Pan	+5	-5	Pan +5		-5	Pan	+5
Mute				Mute				Mute				Mute				Mute				Mute				Mute			Mute			Mute			Mute			To Power Amp
L / R				L / R				L / R				L / R				L / R				L / R				L / R			L / R			L / R			L / R
+10			+10				+10				+10				+10				+10				+10			+10				+10		+10
+5				+5				+5				+5				+5				+5				+5			+5			+5			+5
0				0				0				0				0				0				0			0			0			0
-5				-5				-5				-5				-5				-5				-5			-5			-5			-5
-10				-10				-10				-10				-10				-10				-10			-10			-10			-10
-20				-20				-20				-20				-20				-20				-20			-20			-20			-20
-30				-30				-30				-30				-30				-30				-30			-30			-30			-30
-∞				-∞				-∞				-∞				-∞				-∞				-∞			-∞			-∞			-∞
	1				2				3				4				5				6				7			8		Output A			Output B

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AFS 224 User Manual 8