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Quick Start Guide   

13

Modifi cation: Pre-EQ Aux Sends

The pre-fader aux sends are post-EQ, so they are  

affected by the channel EQ controls. The circuit boards 
can be modifi ed so the pre-fader aux sends are pre-EQ 
instead of post-EQ. For example, your stage monitors 
will not be affected by any channel EQ adjustments. 
This modifi cation can be done by an authorized service 
center. Contact our technical support chaps for details.

AUX RETURN 1-4

These 1/4" TRS stereo input connectors allow you to 

add the stereo processed output from external effects 
processors or other devices to the main mix. Adjust the 
level of the incoming signals with the aux return master 
controls.

Alternatively, you can use these inputs to add any 

stereo line-level signals to your main mix, so it could be 
another line-level source, not just an effects processor.

If you are connecting a mono source, use the left 

(mono) aux return input, and the mono signals will  
appear on both sides of the main mix.

EFX TO MON Level Controls

These controls route the signal from aux returns 1 

and 2 to the aux 5 and 6 sends. This allows you to use an 
external effects device, like a reverb or delay,  
exclusively for the monitors. When these controls are 
turned up, the stereo effects return signal is summed 
to mono and combined with the signals coming from all 
the channel aux 5 and aux 6 send controls.

If you want to add reverb or delay to the stage monitor 

mixes, these are the knobs for you. Operating 
independently of their respectively numbered aux  
returns level controls, these knobs are exactly the same 
as the aux 5 and aux 6 knobs found in the channel strip. 

These two knobs feed their respective stereo aux 

return signals to a mono summing amp and then: 'to 
aux 5' feeds 'aux return 1' to 'aux send 5' master, and 'to 
aux 6' feeds 'aux return 2' to 'aux send 6' master. They 
are off when fully turned down, and provide up to 10 dB 
gain turned fully up.

RETURN 3 to MAIN/SUBS

With this button up, aux return 3 behaves like the 

other aux returns - it delivers a stereo signal, regulated 
by its level knob, to the main mix. When you push this 
button in, the aux return 3 signals are removed from 
the main mix buses and sent to the subs 1-2/3-4 switch, 
which diverts the signal once more.

If the aux returns 3 send to main/subs button is up, 

the subs 1-2/3-4 button does absolutely nothing. Let's 
now assume it is pushed in. Aux return 3's stereo signal 
will not be sent to the main mix, but to the subgroup 
faders 1 and 2 (subs 1-2/3-4 button up) or to subgroup 
faders 3 and 4 (subs 1-2/3-4 button down).

Let's say you've made a stereo drum submix on  

subgroup faders 1 and 2, so you can ride those two  
faders instead of the seven channels that the drums 
came from. Subgroup fader 1 has its assign to main mix 
left button engaged and subgroup fader 2 has its assign 
to main mix right button engaged, blending the drum 
submix back into the main mix. The drum channels are 
also sending signals to your reverb via the aux sends and 
the reverb outputs are patched into the aux return 3. 

Even though you could send aux return 3 directly to 

the main mix (aux return 3 send to main/subs button 
up), you don't want to. Instead, engage the aux return 
3 send to main/subs switch and make sure the subs 
1-2/3-4 switch is up. Now the reverb return is blended 
into the drum submix, and as you ride the two subgroup 
faders, the reverb level will follow.

Why do we want that? Because if you had just sent 

the reverb directly to the main mix (aux return 3 send 
to main/subs button up) and you did a drum fade-out 
using the subgroup faders 1 and 2, the "dry" signals 
would fade out, but the "wet" signals would continue on, 
defeating the purpose of the ever-important drum 
fade-out. All you would hear is the drum reverb (the 
"wet"), and none of the original drum signals (the 
"dry"). That is because the reverb is being fed by the 
channel's aux send, and they have no idea that you've 
pulled down the subgroup faders. That is why we  
included these switches.

RETURN 4 to CR/PHONES

When this button is up, aux return 4 is routed to the 

main mix bus, just as aux returns 1-3 are. When this  
button is down, the aux return 4 stereo signal is routed 
to the CR/phones matrix instead. It does not matter if 
any of the source buttons are assigned, but it will be 
interrupted, as usual, if a solo button is engaged.

Let us pretend that you are doing a live mix to a 

computer, a house PA, or both, and you want to play 
along to a click track. You could run the click track 
directly into the main mix, but you do not want the 
computer or audience to hear it. Instead, it may be 
routed directly to the control room and phones outputs. 
Similarly, it may be used for voice-over tracks,  
narration, anything you want heard by the engineer and 
players but not by the audience and mixdown  
deck/computer.  

Summary of Contents for ONYX 1640I

Page 1: ...ID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15...

Page 2: ...f the Canadian Department of Communications ATTENTION Le pr sent appareil num rique n met pas de bruits radio lectriques d passant las limites applicables aux appareils num riques de class A de class...

Page 3: ...he safety instructions on page 2 and this page and then have a look through some of the features and details in this quick start guide A full manual is available on www mackie com Setup Use the mixer...

Page 4: ...1 2 46 ASSIGN CONTROL ROOM SOURCE TO MAIN MIX 47 CONTROL ROOM LEVEL 48 PHONES LEVEL 49 LEFT RIGHT LEVEL METERS 50 RUDE SOLO LIGHT 51 SOLO LEVEL 52 SOLO MODE SWITCH PFL AFL 53 TAPE IN LEVEL 54 TAPE TO...

Page 5: ...O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW M...

Page 6: ...00 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80H...

Page 7: ...B ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O...

Page 8: ...MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX...

Page 9: ...O 15 O O 15 O O 15 O O 10 O O 10 O O 10 O O 10 O O 10 O O 10 O O 15 O O 15 O O 15 O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN...

Page 10: ...15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1...

Page 11: ...O O MAX O O MAX O O MAX O O 15 O O 15 O O 15 O O 10 O O 10 O O 10 O O 10 O O 10 O O 10 O O 15 O O 15 O O 15 O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1...

Page 12: ...15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4...

Page 13: ...e subs 1 2 3 4 button does absolutely nothing Let s now assume it is pushed in Aux return 3 s stereo signal will not be sent to the main mix but to the subgroup faders 1 and 2 subs 1 2 3 4 button up o...

Page 14: ...15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1...

Page 15: ...O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB...

Page 16: ...0 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUBS 1 4 TO FW 5 8 SOLO LEVEL PFL AFL TAPE TO MAIN MIX TAPE IN MAX O O MAX O O SOLO MODE L R 0dB 0dBu POWER SUB...

Page 17: ...EVEL PFL AFL TAPE TO MAIN MIX TAPE IN MAX O O MAX O O SOLO MODE L R 0dB 0dBu POWER SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100...

Page 18: ...15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3...

Page 19: ...t and activate the inputs from the mixer and outputs to the mixer FIREWIRE CONNECTIONS Two FireWire connectors allow the transfer of digital audio to and from your computer or digital audio workstatio...

Page 20: ...MAX O O MAX O O MAX O O MAX O O 15 O O 15 O O 15 O O 10 O O 10 O O 10 O O 10 O O 10 O O 10 O O 15 O O 15 O O 15 O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MI...

Page 21: ...R SUB ASSIGN MAIN MIX 1 2 3 4 GAIN 4 2 1 5 6 3 PAN HIGH 12kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX...

Page 22: ...t insert 4 dBu in 0 dB gain 4 dBu out 0 005 Mic input at insert 10 dBu in 20 dB gain 20 Hz to 20 kHz bandwidth 0 0007 Stereo channel line input to any output 4 dBu in all gain stages at unity 4 dBu ou...

Page 23: ...s Day without wearing one stitch of green so there Please check our website for any updates to this manual or updates to the PC drivers www mackie com 2010 LOUD Technologies Inc All Rights Reserved D...

Page 24: ...15 U 15 15 U 15 15 8k 400 2k 2k 100 400 HIGH MID FREQ LOW MID FREQ 40dB U 20dB U 20 30 40 60 L R MAX O O MAX O O MAX O O MAX O O MAX O O MAX O O SEND PRE POST OL 10 0 20 SUB ASSIGN MAIN MIX 1 2 3 4 GA...

Page 25: ...O MON RUDE SOLO 20 15 10 6 3 0 2 4 7 10 20 30 SUB 3 4 FW 1 2 SUB 1 2 TAPE ASSIGN TO MAIN MIX MAIN MIX LEVEL SET CLIP MAIN MIX SUB1 SUB4 SUB3 SUB2 SUB1 SUB4 SUB3 SUB2 4 3 2 2 1 1 6 12V 0 5A LAMP CTRL R...

Page 26: ...R R L aux 6 pre aux 5 pre pfl logic Main 4 3 Sub aux 6 post aux 5 post aux 4 pre aux 3 pre aux 4 post aux 3 post afl R afl L 2 1 aux 2 pre aux 1 pre aux 2 post aux 1 post CR in L CR in R L R Aux Retu...

Page 27: ...presentative will at its option either repair or replace any such nonconforming product provided that Customer gives notice of the noncompliance within the Warranty Period to the Company at www mackie...

Page 28: ...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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