Mackie PROFX16 22. PFL SOLO Switch, 23. CHANNEL FADER, 24. USB Switch

5
		MIC			MIC				MIC
			XX				XX	XX/ XX
BAL /UNBAL				BAL /UNBAL				BAL /UNBAL
6											L
								7			(MONO)
	LINE IN			LINE IN
8								LINE IN XX
						25					R
				OFF		MAX
	INSERT			COMP				LINE IN XX
		U			U				G
		G		IC	G			IC
	IC		AI		AI				AI
9	M		N	M		N		M		N
	U		+50	U		+50		U		+50
-20dB			+30dB	-20dB		+30dB		GAIN
10	GAIN			GAIN
	LOW CUT			LOW CUT				LOW CUT
		100Hz		100Hz				100Hz
11		U	EQ		U		EQ	U			EQ
			HI				HI				HI
			12kHz				12kHz				12kHz
	-15	+15		-15	+15			-15	+15
12		U			U
			MID				MID	U
	-15	+15		-15	+15		14				MID
		600		600							2.5kHz
150			1.5k	150		1.5k		-15	+15
13			FREQ				FREQ
	100	U	8k	100	U	8k		U
15
			LOW				LOW				LOW
			80Hz				80Hz				80Hz
	-15	+15		-15	+15			-15	+15
		U	AUX		U		AUX	U			AUX
			MON				MON				MON
16			1				1				1
		+15			+15				+15
OO				OO				OO
		U			U			U

BAL /UNBAL

1

BAL /UNBAL

2

MON SEND

XX/ XX

BAL /UNBAL

L

(MONO)

LINE IN XX

R

LINE IN XX

U

-20 +20

GAIN

UEQ

HI

12kHz

-15 +15

U

MID

2.5kHz

-15 +15

U

LOW 80Hz

-15 +15

UAUX

	MON
	1
OO	+15
	U

FOOTSWITCH

BAL /UNBAL

FX SEND

XX/ XX

BAL /UNBAL

	L
	(MONO)
LINE IN XX
	R
LINE IN XX
U
-20 +20
GAIN SOURCE
LINE	24
USB

UEQ

HI

12kHz

-15 +15

U

MID

2.5kHz

-15 +15

U

LOW 80Hz

-15 +15

UAUX

	MON
	1
OO	+15
	U

22. PFL SOLO Switch

When a channel's solo switch is engaged, any existing selection is replaced by the solo signal, appearing at the control room outputs [31], phones [33] and at the left meter [40]. The audible solo levels are then controlled by the control room knob [53]. The solo levels appearing on the meters are not controlled by the control room knob [53] - you would not want that, anyway. What you do want to see is the actual channel level on the meters regardless of how loud the control room and phones output levels might be.

PFL means Pre-Fader Listen (post-EQ). With the PFL Solo switch engaged, solo will not be affected by a channel's mute switch [20] position.

Remember, PFL taps the channel signal before

the fader. If you have a channel's fader set way below “U” (unity gain), solo will not know

that and will send a unity gain signal to the C-R outs [31], phones output [33] and meter display [40], which may raise some eyebrows.

23. CHANNEL FADER

This is the last control in a channel’s signal path, and it adjusts the level of each channel onto the main mix. The “U” mark ­indicates unity gain, meaning no increase or decrease of signal level. All the way up provides an additional 10 dB, should you need to boost a section of a song. If you find that the overall level is too quiet or too loud with the level near unity, check that the gain control [9] is set correctly.

	MON		MON
	2		2
OO	+15	OO	+15
	U		U

17 FX FX

OO +15 OO +15

	MON
	2
OO	+15
	U
	FX
OO	+15

	MON
	2
OO	+15
	U
	FX
OO	+15

	MON
	2
OO	+15
	U
	FX
OO	+15

24. USB Switch

The USB switch on the last stereo channel provides stereo playback of iTunes®, or a DAW via the USB

18

PAN PAN

PAN

PAN

PAN

connection. Like any other input, this signal may also

	L R		L R
19	OL	OL
		MUTE 20	MUTE
		XX	XX
dB		dB
10		10

L R

OL

MUTE

XX/ XX

dB 10

L R	L R
OL	OL
MUTE	MUTE

XX/ XX	XX/ XX
dB	dB
10	10

be EQ'd, sent to an aux bus, or mixed in with the other signals and assigned to subgroups or main outs. This switch overrides the TRS inputs [6, 7].

5		5
U	1-2	21	1-2
		U
23

5

U

1-2

5	5
1-2	1-2
U	U

5	5
3-4	21	3-4

1010

20210

	L-R		L-R
30		30
	PFL		PFL
40	SOLO	40	SOLO
50		22
		50
60		60
OO		OO

5

3-4

10

20

L-R

30

PFL

40 SOLO

50

60

OO

5		5
10	3-4	10	3-4
20		20
	L-R		L-R
30		30
	PFL		PFL
40	SOLO	40	SOLO
50		50
60		60
OO		OO

Mono Channels	Stereo Channels
Channels 1-8 on ProFX16	Channels 9-16 on ProFX16
Channels 1-14 on ProFX22	Channels 15-22 on ProFX22

16ProFX16 and ProFX22