Mackie 1220i 24. HIGH EQ, 25. MID EQ FREQUENCY (Ch. 1-4), 27. MID EQ LEVEL (Ch. 5-12), 28. LOW EQ, 26. MID EQ LEVEL (Ch. 1-4)

10kHz 20kHz

24. HIGH EQ

			1				2
	YX	M			YX	M
		IC	PR			IC	PR
N				N
O			E	O			E

9

10	1			2
	LINE			LINE
18	BAL/UNBAL			BAL/UNBAL
	LINE			LINE
	HI-Z			HI-Z
19	48V 20			48V
30		30
20 U	40	20 U		40
21U	GAIN			GAIN
	60	U		60
-20dB	+40dB	-20dB	+40dB
SEND		SEND
22	PRE			PRE
	POST			POST
U	EQ		U	EQ
24
	HIGH			HIGH
	12kHz	-15		12kHz
-15	+15			+15
1k		1k
25	FREQ			FREQ
100	8k	100		8k
U			U
26	MID			MID
-15	+15	-15		+15
U			U
28	LOW			LOW
	80Hz			80Hz
-15	+15	-15		+15
	AUX			AUX
29	1			1
OO	MAX	OO	MAX
29	2			2
	MAX		MAX
OO		OO

3

	YX	M
		IC	PR
N
O			E

3

LINE

BAL/UNBAL

75Hz

18dB/OCT

48V

30

20 U 40

GAIN

U 60 -20dB +40dB

SEND

PRE

POST

U EQ

HIGH

12kHz

-15 +15

1k

FREQ

1008k

U

MID

-15 +15

U

LOW

80Hz -15 +15

AUX

1

OO MAX

2

OO MAX

4CTRL - RM O

BAL/UNBAL

	YX	M
		IC	PR
N
O			E
			12
			L
			LINE IN 5-6

4L

LINE (MONO)

BAL/UNBAL 11 BAL/UNBAL

75Hz				R
18dB/OCT
	48V
30			U
20 U
	40
	GAIN			GAIN
U	60	-20dB
-20dB	+40dB			+20dB
SEND		SEND
	PRE			PRE
	POST			POST
U	EQ		U	EQ
	HIGH			HIGH
	12kHz			12kHz
-15	+15	-15		+15
1k			U 27
	FREQ
100	8k			MID
U
				2.5kHz
	MID	-15		+15
-15	+15
U			U
	LOW			LOW
	80Hz			80Hz
-15	+15	-15		+15
	AUX			AUX
	1			1
OO	MAX	OO		MAX
	2			2
OO	MAX	OO		MAX

The high EQ provides up to	+15
	+10
15 dB of boost or cut above
	+5
12 kHz, and it is also flat (no
	0
boost or cut) at the detent. Use	–5
it to add sizzle to cymbals, an	–10
	–15
overall sense of transparency,
	20Hz100Hz	1kHz	10kHz 20kHz

or an edge to keyboards, vocals, guitar and bacon frying. Turn it down a little to reduce sibilance or to mask tape hiss.

25. MID EQ FREQUENCY (Ch. 1-4)

This knob sets the center frequency of the mid

EQ level control [26]. This is sweepable from 100 Hz to 8 kHz.

Once this is set, the mid EQ level can be adjusted with the mid EQ level control.

Most of the root and lower harmonics that define a sound are located in the 100 Hz–8 kHz frequency

range, and you can create drastic changes with these two knobs. Many engineers use mid EQ to cut midrange frequencies, not boost them. One popular trick is to

set the mid fully up, turn the frequency knob until you find a point where it sounds just terrible, then back the mid down into the cut range, causing those terrible frequencies to disappear. Sounds silly, but it works. Sometimes.

PAN	PAN
30
L R	L R

31 MUTE		MUTE
ALT 3/4		ALT 3/4
dB		dB
10	32	10
5		5
U		U

PAN

L R

MUTE

ALT 3/4

dB 10

5

U

PAN PAN

L R L R

MUTE	MUTE
ALT 3/4	ALT 3/4
dB	dB
10	10
5	5
U	U

26. MID EQ LEVEL (Ch. 1-4)

The mid EQ provides up to 15 dB of boost or cut, and it is also flat (no boost or cut) at the detent. The frequency at which the cut or boost occurs is set by the mid EQ frequency control [25].

+15

+10

+5

0

–5

–10

–15

20Hz 100Hz 1kHz

OL OL

OL

OL OL

5	5
- 20	- 20

5

- 20

5	5
- 20	- 20

27. MID EQ LEVEL (Ch. 5-12)

33	10	10
	20	20
	30	30

10

20

30

10	10
20	20
30	30

The mid EQ provides up to 15 dB of boost or cut at 2.5 kHz, and is flat at the detent.

40	40	40		40	40
50	50	50		50	50
60	60	60	60		60
OO	OO	OO		OO	OO

28. LOW EQ

					The low EQ provides up to	+15
34 SOLO						+10
					15 dB of boost or cut below
	SOLO	SOLO	SOLO	SOLO		+5
1	2	3	4		5-680 Hz. The circuit is flat at the	0
					center detent position. This	–5
					frequency represents the punch	–10
						–15
						20Hz100Hz	1kHz	10kHz 20kHz

in bass drums, bass guitar, fat

synth patches, and some really serious male singers who eat raw beef for breakfast.

Owner's Manual 19