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Yamaha 4FX Owner's Manual

Manual is about: Yamaha MG124FX Audio Mixers: Owners Manual

Summary of 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

    Mg12/4fx 2 precautions please read carefully before proceeding * please keep this manual in a safe place for future reference. Warning always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, fire or o...

  • Page 3: Fcc Information (U.S.A.)

    Mg12/4fx 3 always turn the power off when the device is not in use. Even when the power switch is in the “standby” position, electricity is still flowing to the device at the minimum level. When you are not using the device for a long time, make sure you unplug the power cord from the wall ac outlet...

  • Page 4: Introduction

    Introduction mg12/4fx 4 introduction thank you for your purchase of the yamaha mg12/4fx mixing console. The mg12/4fx features input channels suitable for a wide range of usage environments, and includes high-quality built-in digital effects that can provide some very serious sound. The mixer combine...

  • Page 5: Before Turning On The Mixer

    Introduction mg12/4fx 5 before turning on the mixer be sure that the mixer’s power switch is in the standby position. Use only the pa-20 adaptor included with this mixer. Use of a different adaptor may result in equipment damage, overheating, or fire. Connect the power adaptor to the ac adaptor in c...

  • Page 6

    Mg12/4fx 6 making the most of your mixer making the most of your mixer ■ an introduction you’ve got yourself a mixer and now you’re ready to use it. Just plug everything in, twiddle the controls, and away you go … right? Well, if you’ve done this before you won’t have any problems, but if this is th...

  • Page 7: ■ The Sturdy Xlr

    Making the most of your mixer mg12/4fx 7 ■ the sturdy xlr this type of connector is generally referred to as “xlr-type,” and almost always carries a balanced signal. If the corresponding circuitry is designed properly, however, xlr-type connectors will also handle unbalanced signals with no problem....

  • Page 8

    Mg12/4fx 8 making the most of your mixer a balanced cable has three conductors: 1) a ground conductor which carries no signal, just the “ground” or “0” reference against which the signal in the other conductors fluctuates. 2) a “hot” or “+” conductor which carries the normal-phase audio signal. 3) a...

  • Page 9: ■ Input Channel

    Making the most of your mixer mg12/4fx 9 at first glance the block diagram of even a modest mixer can look like a space-station schematic. In reality, block diagrams are a great aid in understanding how the signal flows in any mixer. Here’s a greatly simplified block diagram of a generic mixer to he...

  • Page 10

    Mg12/4fx 10 making the most of your mixer before you even consider eq and effects, or even the overall mix, it is important to make sure that levels are properly set for each individual source. This can’t be stressed enough—initial level setup is vitally important for achieving optimum perfor- mance...

  • Page 11

    Making the most of your mixer mg12/4fx 11 3-2. Level setup procedure for optimum performance now that we know what we have to do, how do we do it? If you take another quick look at the mixer block diagram you’ll notice that there’s a peak indicator located right after the head amplifier and eq stage...

  • Page 12: And Overall Effects

    Mg12/4fx 12 making the most of your mixer 4-1. Aux buses for monitor sends and overall effects there are a number of reasons why you might want to “tap” the signal flowing through your mixer at some point before the main outputs: the two most common being 1) to create a monitor mix that is separate ...

  • Page 13: 4-2. Using Groups

    Making the most of your mixer mg12/4fx 13 4-2. Using groups group buses and faders can greatly simplify the mixing process—particularly in live situations in which changes have to be made as quickly as possible. If you have a group of channels that need to be adjusted all together while maintaining ...

  • Page 14

    Mg12/4fx 14 making the most of your mixer 4-3. Channel inserts for channel-specific processing another way to get the mixer’s signal outside the box is to use the channel inserts. The channel inserts are almost always located before the channel fader and, when used, actually “break” the mixer’s inte...

  • Page 15: Do You  Start?

    Making the most of your mixer mg12/4fx 15 5-1. Approaching the mix—where do you start? Mixing is easy, right? Just move the faders around until it sounds right? Well, you can do it that way, but a more sys- tematic approach that is suited to the material you’re mixing will produce much better result...

  • Page 16: 5-3. To Eq Or Not To Eq

    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-...

  • Page 17: Front & Rear Panels

    Front & rear panels mg12/4fx 17 front & rear panels channel control section 1 gain control adjusts the input signal level. To get the best balance between the s/n ratio and the dynamic range, adjust the level so that the peak indica- tor (2) comes on only at about maximum input level. The –60 to –16...

  • Page 18

    Front & rear panels mg12/4fx 18 6 pre switch selects whether the pre-fader or the post-fader signal is fed to the aux bus. If you set the switch on ( ), the mixer sends the pre-fader signal (the signal prior to pas- sage through channel fader b) to the aux bus, so that aux output is not affected by ...

  • Page 19: Master Control Section

    Front & rear panels mg12/4fx 19 master control section 1 st master fader adjusts the signal level to the st out jacks. 2 group 1-2 fader adjusts the signal level to the group out 1 and group out 2 jacks. 3 to st switch if this switch is on ( ), the mixer sends the signals pro- cessed by the group 1-...

  • Page 20

    Front & rear panels mg12/4fx 20 8 level-meter signal switches (st-group toggle switch and 2tr in switch) these level-meter switches, together with the channel pfl switches, select the signal that is sent through the c-r/phones control to the c-r out jacks, the phones jack, and the level meter the fo...

  • Page 21: Rear Input/output Section

    Front & rear panels mg12/4fx 21 rear input/output section 1 channel input jacks • mic jacks (chs 1 to 4, 5/6, 7/8) these are balanced xlr-type microphone input jacks (1:ground; 2:hot; 3:cold). • line jacks (chs 1 to 4) these are balanced trs phone-type line input jacks (t:hot; r:cold; s:ground). You...

  • Page 22

    Front & rear panels mg12/4fx 22 7 send jacks • aux this is an impedance balanced phone-type output jack. This jack outputs the signals from aux bus, respec- tively. You use this jack, for example, to connect to an effector or to a cue box or other such monitoring sys- tem. • effect this is an impeda...

  • Page 23: Setting Up

    Setting up mg12/4fx 23 setting up setup procedure before connecting to microphones and instruments, be sure that all devices are turned off. Also be sure that all of the mixer’s channel faders and master control faders are set all the way down. For each connection, connect one end of the cable to th...

  • Page 24

    Setting up mg12/4fx 24 ■ sound reinforcement for live performance st aux (pre ) st ( ) di 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 (exter...

  • Page 25: Rack Mounting

    Setting up mg12/4fx 25 rack mounting ■ mounting the mg12/4fx two metal rack-mount supports 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 place. Do...

  • Page 26: Appendix

    Appendix mg12/4fx 26 appendix specifications ■ electrical characteristics where 0 dbu = 0.775 v ■ general specifications where 0 dbu = 0.775 v conditions min typ max unit total harmonic distortion (mic to st out) (thd+n) 20 hz-20 khz @+14 dbu 600 ohms (ch1 to 4) with signal input ch st switches are ...

  • Page 27

    Appendix mg12/4fx 27 ■ input specifications where 0 dbu = 0.775 v and 0 dbv= 1 v * input sensitivity: the lowest level that will produce the nominal output level when the unit is set to maximum gain. ■ output specifications where 0 dbu = 0.775 v and 0 dbv= 1 v specifications and descriptions in this...

  • Page 28: Dimensional Diagrams

    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: Memo

    Mg12/4fx 30 memo.

  • Page 31

    For details of products, please contact your nearest yamaha representative or the authorized distributor listed below. Pour plus de détails sur les produits, veuillez-vous adresser à yamaha ou au distributeur le plus proche de vous figurant dans la liste suivante. Die einzelheiten zu produkten sind ...

  • Page 32

    U.R.G., pro audio & digital musical 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.Yamaha.Co.Jp/manual/english/.