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MG12/4FX

16

Making the Most Of Your Mixer

Spread them Out!

Position your instruments so they have room to “breathe,”
and connect in the most musical way with other instruments.
Sometimes, however, you’ll want to deliberately pan sounds
close together, or even right on top of one another, to empha-
size their relationship. There are no hard-and-fast rules. Nor-
mally (but this is not a rule), bass and lead vocals will be
panned to center, as will the kick drum if the drums are in
stereo.

5-3. To EQ Or Not To EQ

In general: less is better. There are many situations in which
you’ll need to cut certain frequency ranges, but use boost
sparingly, and with caution. Proper use of EQ can eliminate
interference between instruments in a mix and give the over-
all sound better definition. Bad EQ—and most commonly
bad boost—just sounds terrible.

Cut For a Cleaner Mix

For example: cymbals have a lot of energy in the mid and
low frequency ranges that you don’t really perceive as musi-
cal sound, but which can interfere with the clarity of other
instruments in these ranges. You can basically turn the low
EQ on cymbal channels all the way down without changing
the way they sound in the mix. You’ll hear the difference,
however, in the way the mix sounds more “spacious,” and
instruments in the lower ranges will have better definition.
Surprisingly enough, piano also has an incredibly powerful
low end that can benefit from a bit of low-frequency roll-off
to let other instruments—notably drums and bass—do their
jobs more effectively. Naturally you won’t want to do this if
the piano is playing solo.
The reverse applies to kick drums and bass guitars: you can
often roll off the high end to create more space in the mix
without compromising the character of the instruments.
You’ll have to use your ears, though, because each instru-
ment is different and sometimes you’ll want the “snap” of a
bass guitar, for example, to come through.

Boost With Caution

If you’re trying to create special or unusual effects, go ahead
and boost away as much as you like. But if you’re just trying
to achieve a good-sounding mix, boost only in very small
increments. A tiny boost in the midrange can give vocals
more presence, or a touch of high boost can give certain
instruments more “air.” Listen, and if things don’t sound
clear and clean try using cut to remove frequencies that are
cluttering up the mix rather than trying to boost the mix into
clarity.
One of the biggest problems with too much boost is that it
adds gain to the signal, increasing noise and potentially over-
loading the subsequent circuitry.

5-4. Ambience

Judicious application of reverb and/or delay via the mixer’s
AUX busses can really polish a mix, but too much can “wash
out” the mix and reduce overall clarity. The way you set up
your reverb sound can make a huge difference in the way it
meshes with the mix.

Reverb/Delay Time

Different reverb/delay units offer different capabilities, but
most offer some means of adjusting the reverb time. A little
extra time spent matching the reverb time to the music being
mixed can mean the difference between great and merely
average sound. The reverb time you choose will depend to a
great degree on the tempo and “density” of the mix at hand.
Slower tempos and lower densities (i.e. sparser mixes with
less sonic activity) can sound good with relatively long
reverb times. But long reverb times can completely wash out
a faster more active piece of music. Similar principles
applies to delay.

Reverb Tone

How “bright” or “bassy” a reverb sound is also has a huge
impact on the sound of your mix. Different reverb units offer
different means of controlling this—balance between the
high- and low-frequency reverb times, simple EQ, and oth-
ers. A reverb that is too bright will not only sound unnatural,
but it will probably get in the way of delicate highs you want
to come through in your mix. If you find yourself hearing
more high-end reverb than mix detail, try reducing the
brightness of the reverb sound. This will allow you to get
full-bodied ambience without compromising clarity.

Reverb Level

It’s amazing how quickly your ears can lose perspective and
fool you into believing that a totally washed-out mix sounds
perfectly fine. To avoid falling into this trap start with reverb
level all the way down, then gradually bring the reverb into
the mix until you can just hear the difference. Any more than
this normally becomes a “special effect.” You don’t want
reverb to dominate the mix unless you are trying to create the
effect of a band in a cave—which is a perfectly legitimate
creative goal if that’s the sort of thing you’re aiming for.

5-5. Built-in Effects 

Your MG mixer features a high-performance internal effect
system offers extraordinary sound-processing power and
versatility without the need for external equipment. The
internal DSP (Digital Signal Processor) lets you individually
add reverb and delay to each channel in the same way that
you can with an external effect unit – but you don’t need to
wire up any extra gear, and won’t suffer the signal quality
loss that external connections sometimes entail. For details
see page 20.

Summary of Contents for MG12/4FX

Page 1: ...MIXING CONSOLE MIXING CONSOLE Owner s Manual Owner s Manual Making the Most Of Your Mixer Pages 6 to 16 EN...

Page 2: ...precautions include but are not limited to the following Remove the electric plug from the outlet when the device is not to be used for extended periods of time or during electrical storms When remov...

Page 3: ...MATION U S A 1 IMPORTANT NOTICE DO NOT MODIFY THIS UNIT This product when installed as indicated in the instructions contained in this manual meets FCC requirements Modifica tions not expressly approv...

Page 4: ...6 Specifications 26 Dimensional Diagrams 28 Block Diagram and Level Diagram 29 Features Input Channels page 21 With up to six mic line inputs or up to four stereo inputs the MG12 4FX can simultaneousl...

Page 5: ...standard household power outlet Be sure to unplug the adaptor from the outlet when not using the mixer or when there are light ning storms in the area To avoid generating unwanted noise make sure the...

Page 6: ...isn t used much these days besides it s too easily confusable with phone jacks below RCA pin jacks are always unbalanced and generally carry a line level signal at 10 dB nominal You re most likely to...

Page 7: ...asically confined to your desktop and all connections are no more than a meter or two in length then unbalanced lines are fine unless you re surrounded by extremely high levels of electromagnetic nois...

Page 8: ...ustic sound pressure levels as well as electronic signal levels To make matters worse there are a number of variations dBu dBV dBm Fortunately you don t need to be an expert to make things work Here a...

Page 9: ...or a full blown 4 band parametric EQ When boost is applied the EQ stage also has gain You can actually overload the input channel by applying too much EQ boost It s usually better to cut than boost 3...

Page 10: ...t the amount of noise added by each stage is usually not dependent to any significant degree on the level of the audio signal passing through the circuit This means that the bigger the desired signal...

Page 11: ...to each channel one at a time have singers sing players play and playback devices play back at the loudest expected level Gradually turn up the input gain control while the signal is being applied to...

Page 12: ...Monitor Mixes and Groups pre post A pre fader signal is taken from a point before the channel fader so the send level is affected only by the AUX send level control and not by the channel fader Pre f...

Page 13: ...aders simultaneously Group buses usually also have their own outputs so you can send the group signal to a different external destination from the main mix Channel faders Assigned to Group Controlled...

Page 14: ...er to a specific channel although they can be used with just about any type of in out processor Channel insert jacks must be used with a special insert cable that has a TRS phone jack on one end and m...

Page 15: ...the bass and drums to support the overall sound Example2 Funky R B Groove The approach will be totally different if you re mixing a funky R B number that centers on the groove In this case most engine...

Page 16: ...boost is that it adds gain to the signal increasing noise and potentially over loading the subsequent circuitry 5 4 Ambience Judicious application of reverb and or delay via the mixer s AUX busses can...

Page 17: ...set ting the mixer does not apply this HPF to the line inputs of stereo input channels 4 Equalizer HIGH MID and LOW This three band equalizer adjusts the channel s high mid and low frequency bands Se...

Page 18: ...en channel feed to the Group 2 bus or the Stereo R bus On channels where this knob provides both PAN and BAL controls 5 6 and 7 8 the knob operates as a PAN control if you are inputting through the MI...

Page 19: ...identical signal to both the L and R Stereo buses 6 2TR IN Control Adjusts the level of the signal sent from the 2TR IN jack to the Stereo bus 7 PHANTOM 48 V Switch This switch toggles phantom power o...

Page 20: ...ct to be applied You can select from 16 effects as shown in the table PARAMETER Control Adjusts the parameter depth speed etc for the selected effect The mixer saves the last value used with each effe...

Page 21: ...ible phase conflicts with other signals 3 Channel Input Jacks These are unbalanced stereo line input jacks Two jack types are provided phone type CHs 5 6 to 11 12 and RCA pin type CHs 9 10 11 12 Where...

Page 22: ...rding device side 0 2TR IN Jacks These RCA pin jacks input a stereo sound source Use these jacks when you want to connect a CD or DAT directly to the mixer for monitoring You can adjust the signal lev...

Page 23: ...you may use either one of these jacks but you may not use both at the same time Please connect to only one of these jacks on each channel To avoid causing damage to speakers power up the devices in t...

Page 24: ...I Microphones Monitor Speakers Internal Power Amp CD Cassette or DAT Recorder Synthesizer Effector Bass CD Player Microphones Headphones Main Speakers External Example of Speaker Arrangement Audience...

Page 25: ...rts are screwed onto the unit Use a screwdriver to remove these supports Turn the supports over and fasten them into place again using the same screws Mount the unit into the rack and fasten it into p...

Page 26: ...H to ST 62 2 dB CH MIC INPUT to AUX SEND PRE 76 dB CH MIC INPUT to AUX SEND POST EFFECT SEND 86 dB CH LINE INPUT to GROUP OUT ST OUT CH to ST 58 dB ST CH MIC INPUT to GROUP OUT ST OUT CH to ST 84 dB S...

Page 27: ...0 dBu 0 078 mV 60 dBu 0 775 mV 40 dBu 7 75 mV XLR 3 31 type balanced 16 36 dBu 12 3 mV 16 dBu 123 mV 10 dBu 245 mV ST CH LINE INPUT CH5 L CH6 R CH7 L CH8 R 34 10 k 600 line 54 dBu 1 55 mV 34 dBu 15 5...

Page 28: ...Appendix MG12 4FX 28 Dimensional Diagrams 317 4 416 6 325 6 102 6 2 108 322 480 322 When mounted on rack Unit mm...

Page 29: ...Appendix MG12 4FX 29 Block Diagram and Level Diagram...

Page 30: ...MG12 4FX 30 MEMO...

Page 31: ...no Italy Tel 02 935 771 SPAIN PORTUGAL Yamaha Hazen M sica S A Ctra de la Coruna km 17 200 28230 Las Rozas Madrid Spain Tel 91 639 8888 SWEDEN Yamaha Scandinavia AB J A Wettergrens Gata 1 Box 30053 S...

Page 32: ...cal Instrument Division Yamaha Corporation 2004 Yamaha Corporation WC71270 408CRAP8 3 01A0 Printed in China Yamaha Pro Audio global web site http www yamahaproaudio com Yamaha Manual Library http www2...

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