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15

Owner’s Manual

Owner’

s Manual

13. MON SEND

Stage monitors allow the talented musicians in your 

band to hear themselves clearly on stage, and this can 
often be a good thing. The monitor mix can be care-
fully adjusted in level using the aux mon controls [26]. 
These tap a portion of each channel's signal to provide 
a 1/4" TRS output here to feed external stage monitors. 
These could either be passive stage monitors powered 
by an external amplifi er, or powered stage monitors with 
their own amplifi er built in.

The monitor signal is the sum (mix) of all the chan-

nels whose aux mon control is set to more than mini-
mum. If they want "more me, and less Keith," you can 
turn up their channel's aux mon control, and turn down 
Keith's.

The overall output level can be adjusted with the 

monitor fader [47] and its EQ tweaked with the graphic 
EQ [37] if the main mix/mon switch [38] is pressed in. 
Alternatively, you could add an external graphic EQ be-
tween this output and your powered monitors. This will 
allow you to adjust the EQ, and minimize the chance of 
feedback from nearby microphones.

The monitor output is not affected by the main fader 

[48], or the channel faders [31]. This allows you to set 
up the monitor mix and level just right, and not have it 
change when a channel fader or the main mix fader is 
adjusted. This is known as "pre-fader."

14. FX SEND

This 

1

/

4

" TRS line-level output can be used to feed an 

external effects processor (FX), such as a nice sound ef-
fect, or delay unit. The output from this jack is an exact 
copy of what goes into the internal FX processor, being 
the careful mix of all channels whose aux FX control 
[14] is turned more than minimum.

(The processed output of the internal FX does not 

come out of this output, but is added internally to the 
main mix or monitor mix.)

The overall output level can be adjusted with the FX 

master knob [52]. (This knob also effects the level go-
ing into the internal FX.)

The output is "post-fader," so any changes to the chan-

nel faders [31] will also affect the level going to the 
external processor.

The processed output from the effects processor is 

usually returned to the stereo returns [12] or a spare 
channel, and you can carefully mix the original unpro-
cessed channel (dry) and the processed channel (wet). 
Altering the original channel fader increases both the 
wet and dry signals and keeps them at the same delicate 
ratio. (For example, the reverb remains at the same 
level relative to the original.)

15. 

1

4

" MAIN OUTS

These outputs feed the main mix out into the waiting 

world. You can feed your amplifi ers this way, or through 
the XLR main outputs [4].

To use these outputs to drive balanced inputs, con-

nect 1⁄4" TRS (Tip–Ring–Sleeve) phone plugs like this: 

Tip = + (hot)

Ring = –(cold)

Sleeve = Ground

To use these outputs to drive unbalanced inputs, con-

nect 1⁄4" TS (Tip-Sleeve) phone plugs like this: 

Tip = + (hot)

Sleeve = Ground

16. FX FOOTSWITCH

This 1/4" TRS connector is where you can connect 

your favorite footswitch. This will allow you to easily 
mute or un-mute the internal effects, while stamping 
your foot and looking like you were mad about some-
thing. Any one-button on/off footswitch will work.

If the internal effects have already been muted with 

the internal FX mute switch [51] then the footswitch 
has no effect, but you can still stamp your foot and pout 
if that helps any. Cultivate that bad-boy image.

17. PHONES

This 

1

/

4

" TRS stereo jack will drive any standard head-

phone to very loud levels. The wiring follows  standard 
conventions:

Tip = Left channel

Ring = Right channel

Sleeve = Common ground 

The headphones output is the stereo main mix, not 

affected by the main fader [48], or the graphic EQ [37].

Warning:

 when we say the headphone out-

put is loud, we’re not kidding. It can cause 
permanent ear damage. Even intermediate 

levels may be painfully loud with some earphones. Be 
careful! Always turn the phones level control [42] all 
the way down before connecting headphones, adding 
new sources, or making any other changes. Keep it down 
until you’ve put the phones on. Then turn it up slowly.

Summary of Contents for ProFX12

Page 1: ...15 O O O O dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O...

Page 2: ...pproved by LOUD Technologies Inc could void the user s authority to operate the equipment under FCC rules 21 This apparatus does not exceed the Class A Class B whichever is applicable limits for radio...

Page 3: ...re you do please read the safety instructions on page 2 then read this page and the rest later ZerotheMixer 1 Turn down all knobs except the channel EQ and pan knobs and set all the faders fully down...

Page 4: ...el Each channel has a pan control mute switch overload OL LED and fader Stereo return has mute OL LED and fader XLR and 1 4 TRS main stereo line outputs 1 4 TRS stereo return 1 4 TRS FX send and monit...

Page 5: ...15 15 1 4 MAIN OUTS 15 16 FX FOOTSWITCH 15 17 PHONES 15 18 TAPE INPUT 16 19 TAPE OUTPUTS 16 CHANNEL CONTROLS 17 20 GAIN 18 21 LEVEL SET LED 18 22 LOW CUT 18 23 HI EQ 19 24 MID EQ 19 25 LOW EQ 19 26 A...

Page 6: ...20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 d...

Page 7: ...0 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O...

Page 8: ...15 U 15 15 U 15 15 U 20 20 R L 7 8 ST RTN FX RTN EQ 12kHz HI PAN AUX U 15 O O MON FX U 15 O O U 15 FX TO MON FX MASTER U 15 O O O O dB 30 20 10 10 O O 40 50 5 5 U 60 dB 30 20 10 10 O O 40 50 5 5 U 60...

Page 9: ...EL SET PAN AUX U 15 O O MON FX U 15 O O GAIN MIC MIC MIC MIC 80Hz LOW U 15 15 U 15 15 U 15 15 U 20 20 R L 7 8 ST RTN FX RTN EQ 12kHz HI PAN AUX U 15 O O MON FX U 15 O O U 15 FX TO MON FX MASTER U 15 O...

Page 10: ...80Hz LOW U 15 15 U 15 15 U 15 15 R L LOW CUT 100Hz GAIN MIC GAIN U 50 MIC GAIN U 50 5 6 EQ 12kHz HI LEVEL SET LEVEL SET LEVEL SET LEVEL SET PAN AUX U 15 O O MON FX U 15 O O GAIN MIC MIC MIC MIC 80Hz...

Page 11: ...3 4 EQ 12kHz HI PAN AUX U 15 O O MON FX U 15 O O 80Hz LOW U 15 15 U 15 15 U 15 15 R L LOW CUT 100Hz GAIN MIC GAIN U 50 MIC GAIN U 50 5 6 EQ 12kHz HI LEVEL SET LEVEL SET LEVEL SET LEVEL SET PAN AUX U 1...

Page 12: ...ULES AND THE ICES 003 FOR CANADA OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING...

Page 13: ...f phantom power is on Do not plug instrument outputs into the mic input jacks with phantom power on unless you know for certain it is safe to do so 7 LINE HI Z SWITCH To connect a guitar directly to t...

Page 14: ...s use a 1 4 mono TS phone plug or instrument cable If you have a stereo source and the stereo and hybrid channels are in use you can use two mono channels Traditionally an odd numbered channel receive...

Page 15: ...rnal FX The output is post fader so any changes to the chan nel faders 31 will also affect the level going to the external processor The processed output from the effects processor is usually returned...

Page 16: ...slowly 19 TAPE OUTPUTS These stereo unbalanced RCA outputs allow you to record the main stereo mix onto a tape deck hard disk recorder automatic CD burner or a computer etc This allows you to make a...

Page 17: ...U 15 O O MON FX U 15 O O 80Hz LOW U 15 15 U 15 15 U 15 15 R L LOW CUT 100 Hz 12kHz HI PAN AUX U 15 O O MON FX U 15 O O 80Hz LOW U 15 15 U 15 15 U 15 15 BAL UNBAL MONO MONO MONO LINE IN 7 LINE IN 8 BAL...

Page 18: ...when you stop If the signal comes through the mic XLR jack there will be 0 dB of gain U for unity with the knob fully down ramping to 50 dB of gain fully up Through the 1 4 mono input there is 20 dB o...

Page 19: ...at the center detent position This frequency represents the punch in bass drums bass guitar fat synth patches and some really serious male singers Used in conjunction with the low cut 22 switch you c...

Page 20: ...lower unwanted bass thumps and bangs 30 MUTE Press this switch in to mute the channel in the main mix The aux mon output of the channel is not muted but the FX output to the internal FX processor and...

Page 21: ...ower cord before removing and inspect ing the fuse located below the AC input 34 METERS These meters have 2 columns of 12 LEDs each with dB markings from 30 to 15 and OL overload at 20 dBu They indica...

Page 22: ...it is often your best option Turn down the offending frequency range rather than boost the wanted range You can use it to reduce the level of some frequency bands where feedback occurs 38 MAIN MIX MO...

Page 23: ...urn inputs 12 45 STEREO RETURN FADER Use this fader to lovingly adjust the level of any audio coming into the stereo return inputs 12 from your external processors or other equipment The audio is adde...

Page 24: ...itch to mute or unmute the effects If this switch is not engaged then the internal effects can be muted or unmuted with your footswitch 52 FX MASTER Use this knob to control the level of the signals g...

Page 25: ...a snare drum or tight vocal arrangements 8 CATHEDRAL This reverb emulates the extremely long tails dense diffusion and long pre delays and reflec tions that would be found in a very large stone walle...

Page 26: ...its not the mixer If it s a stereo pair try switching them around For example if a left output is presumed dead switch the left and right cords at the mixer end If the problem switches sides it s not...

Page 27: ...nced mono circuits When wired as a bal anced connector a 1 4 TRS jack or plug is con nected tip to signal high hot ring to signal low cold and sleeve to ground earth Unbalanced Send Return circuits Wh...

Page 28: ...ut return signals in one connector See Figure E The sleeve is the common ground earth for both signals The send from the mixer to the external unit is carried on the tip and the return from the unit t...

Page 29: ...other inputs 20 kilohms Tape out 1 1 kilohms Phones out 25 ohms All other outputs 120 ohms Maximum Voltage Gain EQ Flat Mic Input Channel to Insert Output 50 dB Tape Output 60 dB USB Output 60 dB Inch...

Page 30: ...ered trademarks of LOUD Technologies Inc All other brand names mentioned are trademarks or registered trademarks of their respective hold ers and are hereby acknowledged 2008 LOUD Technologies Inc All...

Page 31: ...48v Switch LED to from 7 Band EQ Tape Out Left FX Mon FX Mon Low Cut In Mic L R Gain HPF 100 Hz Mic Gain 0 50dB Stereo Channels 7 8 ProFX8 9 12 ProFX12 USB Out FX send FX Bypass Logic In FX Out L Out...

Page 32: ...e not af fected by the switch and always provide a full mix of channels and any 2 channel audio from your computer The analog audio from the mixer is converted to digi tal signals by the USB interface...

Page 33: ...new track on your DAW While recording the new track you will hear the previously recorded tracks coming into the mixer s USB input while you simultane ously hear the current track you are recording di...

Page 34: ...ring via software you want this latency delay time to be as low as possible We would like to set the latency as low as possible but the smaller it is the harder the computer will have to work If the l...

Page 35: ...red for those units deemed by us to be under warranty Note You must have a sales receipt from an authorized Mackie dealer for your unit to be considered for warranty repair IMPORTANT Make sure that th...

Page 36: ...Road NE Woodinville WA 98072 USA United States and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Africa 31 20 654 4000 Fax 425 487 4337 www mackie com E mail s...

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