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Owner's Manual   

25

Aux Master

This section includes the aux sends and the aux 

returns. Aux sends tap signals off the channels, via the 
aux knobs [32], mix these signals from each channel 
together, then sends them out the aux send jacks [12] 
and FireWire outputs 7 and 8. The aux sends can be pre-
fader or post-fader (both are post-EQ, but see page 39).

Post-fader aux sends can be fed to the inputs of an 

external processor like a reverb or digital delay. From 
there, the outputs of this external processor are fed 
back to the mixer’s aux return jacks [13]. Then these 
signals are sent through the aux return level controls 
[47], and finally delivered to the main mix.

So, the original unprocessed “dry” signals go from 

the channels to the main mix, and the processed “wet” 
signals go from the aux returns to the main mix, and 
once mixed together, the dry and wet signals combine to 
create a glorious sound!

Pre-fader aux sends are typically used to provide 

another mix for stage monitors. In this case, the aux re-
turns aren’t used to return the signal. Instead, they can 
be used as additional stereo inputs, or not used at all.

45. MASTER AUX SEND 1 and 2

These knobs provide overall control over the aux send 

levels, just before they are delivered to the aux send 
outputs [12]. These knobs go from off to +15 db when 
turned all the way up.

The aux sends can either be pre or post fader, depend-

ing on the position of the aux pre/post switches [46]. 

This is usually the knob you turn up when the lead 

singer glares at you, points at his stage monitor, and 
sticks his thumb up in the air. (It would follow that if 
the singer stuck his thumb down, you’d turn the knob 
down, but that never happens.)

The aux sends can also be sent to FireWire output 7 

and 8 for recording. The levels to FireWire are affected 
by these send controls and the pre/post switch.

46. PRE/POST

The pre/post switches determine whether the aux 

send signal is tapped from the channels before the 
channel level controls (pre-fader) or after (post-fader). 
Having a separate pre/post switch for each aux is a 
super-useful feature as it allows the use of one effects 
processor and one stage monitor chain, at the same 
time. 

For stage monitor work, use pre, so the stage moni-

tors do not increase in volume when the channel level is 
adjusted.

For external processors, use post. In this way, the feed 

to external processors will vary with the channel level, 
keeping them in the same ratio, so that the “wet” signal 
level follows the “dry” signal level.

47. MASTER AUX RETURN 1 and 2

These two controls set the overall level of effects 

received from the stereo aux return 1 and 2 inputs [13]. 
These controls range from off to +10 db of gain when 
fully clockwise, to compensate for low-level effects.

Signals passing through these controls go directly to 

the main mix bus where they are combined with the 
other channels. Alternatively, the aux 2 return can be 
routed to aux 1 send instead, using the rtn to aux 1 
switch [48].

48. RTN TO AUX 1

This switch routes the signal from aux return 2 to the 

aux 1 send mix instead of to the main mix bus.

For example, this allows you to use an external effects 

device, like a reverb or delay, exclusively for the moni-
tors. When this switch is pushed in, the effects signals 
coming into the aux return 2 jacks are added to your 
aux 1 stage monitor mix. Adjust the effects level coming 
in with the aux 2 return controls [47], until it sounds 
just right in your monitors.

49. AUX SEND 1-2 to FW 5-6

This switch allows you to send a copy of the aux 

send 1 and 2 outputs via FireWire to a computer. The 
FireWire output is affected by the channel aux send and 
master aux send controls.

For example, you can set up a software effects proces-

sor as follows:

•  Set up an aux send in post mode.
•  Engage this switch to make aux send FireWire 

outputs 5 and 6 available to your computer.

•  Pass this through a software effects processor 

or plug-in of your choice.

•  Return the processed output from the effects 

processor to mixer channels 7 and 8 (input 
switch set to FW 1-2).

•  Alternatively bring the processed sounds into 

the control room matrix (engage FW 1-2) and 
add it to the main mix (engage assign to main 
mix).

•  You can even use the computer as two separate 

independent mono in, stereo out processors.  
Have aux 1 go into one plug-in, and aux 2 go 
into a different one. The stereo outputs of both  
plug-ins are combined back into the stereo 
stream coming back to the mixer.

Summary of Contents for ONYX-820i

Page 1: ...L ALT 3 4 OUT R L CTRL RM OUT POWER ON FW 1 2 LINE HI Z LINE 10dB 4dB HI Z LINE PREMIUM ANALOG MIXER w PERKINS EQ FIREWIRE PRE POST PRE POST PRE POST PRE POST LEVEL LEVEL LEVEL LEVEL LEVEL 10dB O O U...

Page 2: ...adian 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 B selon l...

Page 3: ...on last This will reduce the chance of turn on or turn off thumps Always turn down the phones level when making connections pressing solo or doing anything that may cause loudness in the head phones T...

Page 4: ...AW the 820i allows you to use your favorite plug in as a realtime ef fect Just route an aux send to your DAW apply the plug in and assign your DAW outputs to the control room or to a channel strip for...

Page 5: ...marks infor mation that is critically important or unique to the mixer For your own good read them and remember them This icon will lead you to some explanations of features and practical tips Go ahea...

Page 6: ...EQ 20 26 MID EQ FREQUENCY CH 1 AND 2 20 27 MID EQ LEVEL CH 1 AND 2 20 28 HIGH MID EQ LEVEL CH 3 AND 4 20 29 LOW MID EQ LEVEL CH 3 AND 4 20 30 MID EQ LEVEL CH 5 6 AND 7 8 20 31 LOW EQ 20 32 AUX SEND 1...

Page 7: ...ABRIQUE EN CHINE MACKIE ONYX ARE TRADEMARKS OF LOUD TECHNOLOGIES INC COPYRIGHT 2008 FIREWIRE ALT 3 4 FW 1 2 ASSIGN TO MAIN MIX 3 4 5 6 7 8 GAIN 20dB 20dB U GAIN MIC GAIN GAIN 20dB 20dB U U 20 30 40 60...

Page 8: ...7 8 GAIN 20dB 20dB U GAIN MIC GAIN GAIN 20dB 20dB U U 20 30 40 60 40dB U 20dB U 20 30 40 60 GAIN 40dB U 20dB U 20 30 40 60 1 LINE 2 LINE 1k 100 8k 1k 100 8k MAX O O MAX O O MAX O O MAX O O 15 O O 15...

Page 9: ...40 60 GAIN 40dB U 20dB U 20 30 40 60 1 LINE 2 LINE 1k 100 8k 1k 100 8k MAX MAX MAX MAX 15 15 10 10 MAX MAX MAX MAX MAX MAX MAX MAX L R L R L R L R L R MAIN OUTPUT LEVEL MIC 4dB Laptop Computer with au...

Page 10: ...MAX MAX MAX MAX 15 15 10 10 MAX MAX MAX MAX MAX MAX MAX MAX L R L R L R L R L R MAIN OUTPUT LEVEL MIC 4dB HD1531 Powered Speaker Main Left Powered Subwoofers SRM350v2 Powered Speakers HD1531 Powered S...

Page 11: ...R BAL UNBAL TAPE IN OUT L R AUX RETURN 1 2 1 2 AUX SEND MAIN OUT CTRL ROOM PHONES SOURCE PHONES CONTROL ROOM MID 2 5kHz LOW 80Hz U 15 15 U 15 15 U 15 15 U 15 15 U 15 15 U 15 15 U 15 15 U 15 15 U 15 15...

Page 12: ...e to record a live performance directly to your computer then you can mixdown to a stereo mix later Or you can use FireWire to turn your Onyx mixer into a high quality computer audio interface for you...

Page 13: ...selected A 2 track FireWire feed from your computer if FW 1 2 is selected A combination of all four above Except for main mix whatever is playing in these out puts can also be routed to the main mix...

Page 14: ...kind of circuit is excellent at rejecting hum and noise You can plug in almost any kind of mic that has a standard XLR type male mic con nector Professional ribbon dynamic and condenser mics all sound...

Page 15: ...d is the sum of all the channels whose aux 2 send control is set to more than minimum The overall aux output level can be adjusted with the aux send master controls 45 The aux sends can either be pre...

Page 16: ...e tape output is the stereo main mix and it is af fected by the main mix level control 55 The output could also be used as an extra set of main outputs for feeding another zone 17 HEADPHONE OUTPUT Thi...

Page 17: ...so you ll know what you re doing level wise if you choose to change a control s settings MUTE SOLO 48V MUTE SOLO 48V MUTE SOLO 48V LINE MUTE SOLO MUTE SOLO TAPE PAN 2 1 MID FREQ MID FREQ BAL UNBAL BA...

Page 18: ...n ability to be unseen by dynamic mics Shure SM57 SM58 for instance which don t need external power and aren t affected by it anyway Press this switch in if your microphone requires phan tom power Alw...

Page 19: ...ind of mic a different vocalist changing the strings or gargling Never plug single ended unbalanced micro phones or ribbon mics into the mic input jacks if phantom power is on Do not plug instrument o...

Page 20: ...PAN 2 1 MID FREQ MID FREQ BAL UNBAL BAL UNBAL ALT 3 4 ALT 3 4 ALT 3 4 ALT 3 4 ALT 3 4 LOW MID 400Hz ONYX MIC PRE HIGH 12kHz LOW 80Hz EQ INSERT INSERT ONYX MIC PRE HIGH 12kHz LOW 80Hz EQ ONYX MIC PRE...

Page 21: ...r much louder when panned center This is not to be confused with pan the famous steel drums of the tropical island paradise of Woodinville 34 MUTE switch and ALT 3 4 The dual purpose mute alt 3 4 swit...

Page 22: ...r solo is engaged all source selections main mix alt 3 4 tape and FireWire are defeated to allow the soloed signal to do just that solo Dear Betty All this talk of solo reminded me of how happy we cou...

Page 23: ...tape deck is not in record record pause or input monitor mode when you engage these switches or make sure the con trol room knob 41 is turned all the way down 41 CONTROL ROOM Knob This controls the v...

Page 24: ...e solo mode as described in Set the Levels on page 3 When 0 dBu 0 775 V is at the main mix outputs it shows as 0 dB on the meters You can get a good mix with peaks flashing anywhere between 20 and 10...

Page 25: ...processor and one stage monitor chain at the same time For stage monitor work use pre so the stage moni tors do not increase in volume when the channel level is adjusted For external processors use p...

Page 26: ...t nicely such as phones 42 or aux sends 45 3 Hold down the talkback switch 54 as you make your fruity toned announcements 4 Slowly turn this control up until you get confir mation from whoever is list...

Page 27: ...rs 43 Adjust this control care fully with your good eye on the meters to check against overloading and your good ear to the levels to make sure your audience if any is happy This control does not affe...

Page 28: ...st in case one of your external pieces has a problem Make sure that you are not overdriving your amplifiers Check the loudspeaker average load impedance is not less than the minimum your amplifier can...

Page 29: ...lug is connected tip to signal send output from mixer ring to signal return input back into mixer and sleeve to ground earth 1 4 TS Phone Plugs and Jacks TS stands for Tip Sleeve the two connections a...

Page 30: ...n its merry way through the mixer This allows you to tap out the channel signal without interrupting normal operation If you push the 1 4 TS plug in to the second click you will open the jack switch a...

Page 31: ...at 45 kHz Distortion THD N 20 Hz to 20 kHz 20 Hz to 80 kHz bandwidth Mic input at insert 4 dBu in 0 dB gain 4 dBu out 0 001 Mic input at insert 36 dBu in 40 dB gain 4 dBu out 0 007 Stereo channel lin...

Page 32: ...other outputs 300 AC Power Requirements Power Consumption 25 watts Universal AC Power Supply 100 VAC 240 VAC 50 60 Hz Physical Dimensions and Weight Height 14 2 in 361 mm Width 9 0 in 229 mm Depth 3 8...

Page 33: ...ut Main output 48V Mono Channels 1 2 Mic Line Gain Mic 0 60dB Line 20 40dB 3 Band EQ Internal Talkback mic Level Stereo Channels 5 6 7 8 L R FW Line CH 7 8 only FW OUT 1 2 Hybrid Ch 3 4 L R Mic 20 20d...

Page 34: ...lace the mixer face up on a soft and dry flat surface 2 3 Remove the eight screws as shown below wrap them up in an old sock and keep them in a safe place for further use 4 Using only the new screws s...

Page 35: ...this owner s manual you will not be reading this yet Its a bit of a paradox really because didn t you just read it Like this bit of text right now Hmm MackieWindowsFireWireAudioDriver InstallationInst...

Page 36: ...udio applications such as iTunes or Windows Media Player InstallationforWindowsXP 1 Connect the FireWire cable from your Onyx 820i to the computer 2 Power on your Onyx 820i 3 The Windows XP applicatio...

Page 37: ...e new software has been installed successfully and that the found new hardware wizard is com plete 11 Pack yourself a big lunch and go for a nice walk outside Have a picnic and lie back and dream Thin...

Page 38: ...ick Audio MIDI Setup 4 Click the Audio Devices tab and select Onyx i in the Properties For drop down box 5 Here you can see the settings for the mixer You can also choose it as your default input or o...

Page 39: ...insert but the circuit board can be modified so that they are post insert instead For example this allows for the use of an external processor on the mic signal sending the result to the FireWire whi...

Page 40: ...0 6 3 0 2 4 7 10 20 30 L R 0dB 0dBu LEVEL SET CLIP MIC PRE POST PRE POST FW 1 2 LINE HI Z LINE 10dB 4dB HI Z LINE PREMIUM ANALOG MIXER w PERKINS EQ FIREWIRE PRE POST PRE POST PRE POST PRE POST LEVEL L...

Page 41: ...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 42: ...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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