Humminbird AMX-220FX Equalizer, HI-MID9, MID-LOW10, Aux Sends Control, 4.9 PAN/BAL CONTROL

4.7 EQUALIZER

The mono input channels (channel 1~8) are equipped with 3-band MID sweep EQ: HI band, MID band and LOW band. And the stereo channels (channel 9~16) are equipped with 4-band fixed frequency EQ: HI band, HI-MID band, MID-LOW band and LOW band. All bands provide up to 15dB boost or cut.

- HI	7
	8

This is the treble control. You can use it to get rid of high frequency noises or to boost the sound of cymbals or the high harmonics of the human voice. The gain range goes from -15dB to +15dB with a center frequency of 12kHz.

- MID 8

This is the midrange control. It provides 15dB boost or cut, flat at the center detent and the FREQ knob sets the center fre- quency, the adjustable range goes from 100Hz to 8KHz. It can affect most fundamental frequencies of all musical instruments and human voice.

- HI-MID9

This control provides you up to 15dB boost or cut at 3KHz. It

	0				0
			EQ				EQ
			HI				HI
			12kHz				12kHz
-15	0	+15		-15	0	+15
			MID				HI-MID
							3kHz
-15 800 +15				-15	0	+15
			FREQ				MID-LOW
							500Hz
100Hz	0	8kHz		-15	0	+15
			LOW				LOW
			80Hz				80Hz
-15		+15		-15		+15
1	0			1	0
			AUX				AUX
			POST				POST
-		+15	PRE	-		+15	PRE
	0				0
2				2
/				/
D			POST	D			POST
F			(PRE)	F			(PRE)
X				X
-		+15		-		+15

7

9

10

11

12

is useful to control voice. It can accurately polish your perfor- mance via adjusting this knob.

- MID-LOW10

This control provides you up to 15dB boost or cut at 500Hz.

- LOW 11

This is the bass control. It is used to boost male voice, kickdrum or bass guitar. Your system will sound much bigger than what it is. The gain range goes from -15dB to +15dB and the center frequency is 80Hz.

4.8 AUX SENDS CONTROL 12

These two controls are used to adjust the level of signal sent to AUX bus1&2, and this adjustment doesn't effect the main mix output signal at all.

AUX1 can be configured as PRE/POST fader via the PRE/POST switch. Up for POST fader, the signal is sent out after the channel fader and will be affected by the channel fader. Down for PRE fader, the signal is sent out before the channel fader and will not be affected by the channel fader. AUX2 is configured as POST fader, however, it can also be configured as PRE fader through

PAN

LEFT RIGHT

MUTE /

ALT 3-4

SOLO

PEAK

10

dB

5

0

-5

-10

-20

-25

-30 -40 -60

BAL

LEFT RIGHT

MUTE /

ALT 3-4

SOLO

PEAK

10

dB

5

0

-5

-10

-20

-25

-30 -40 -60

13

14

15

16

17

internal modification. (For more detail, please refer to chapter 6)

4.9 PAN/BAL CONTROL 13

89/10

Abbreviation of PANORAMA control for mono channels, for the stereo channels, always says, BALANCE control. You can adjust the stereo image of the signal via this control. Keep this control in center position and your signal will be positioned in the middle of stage. Turn this control fully counterclockwise and the signal will be present only on the left speaker and vice-versa.

4.10 MUTE/ALT3-4 SWITCH & LED INDICATOR 14

Each channel is equipped with the MUTE/ALT3-4 switch. This switch is used to route the channel signal to ALT3-4 output instead of the main mix and the LED beside MUTE/ALT3-4 will illuminate when the switch is Depressed.

10