Mackie 1642VLZ4 Owner's Manual download pdf (Page 21)

Owner’s Manual

Meters vs. Reality

Youmayalreadybeanexpertattheworldof“+4”(+4

dBu=1.23V)and“–10”(–10dBV=0.32V)operating

levels.Basically,whatmakesamixeroneortheother

istherelative0dBVU(or0VU)chosenforthemeter

display.A“+4”mixer,witha+4dBusignalpouringout

thebackwillactuallyread0VUonitsmeterdisplay.

A“–10”mixer,witha–10dBVsignaltricklingout,will

read,youguessedit,0VUonitsmeterdisplay.Sowhen

is0VUactually0dBu?Rightnow!

Attheriskofcreatinganotherstandard,VLZ4com-

pactmixersaddresstheneedofbothcrowdsbycalling

thingsastheyare:0dBu(0.775V)attheoutputshows

as0VUonthemeterdisplay.Whatcouldbeeasier?By

theway,themostwonderfulthingaboutstandardsis

thattherearesomanytochoosefrom.

Thankstothe1642VLZ4’swidedynamicrange,you

cangetagoodmixwithpeaksashinganywherebe-

tween–20and+10dBonthemeterdisplay.Mostampli-

ersclipatabout+10dB,andsomerecordersaren’tso

forgivingeither.Forbestreal-worldresults,trytokeep

yourpeaksbetween“0”and“+7.”

Pleaseremember:Audiometerdisplaysarejusttools

tohelpassureyouthatyourlevelsare“intheballpark.”

Youdon’thavetostareatthem(unlessyouwantto).

Ifyoundthatstaringatthemeterssendsyouintoa

hypnotictrance,pleasedonotbealarmed.Justcutmy

lawnandpolishmycareveryTuesday.

Aux Talk

Sendsareoutputs,returnsareinputs.Eachchannel's

aux[35]knobstapthesignaloffthechannelandsend

ittotheauxsend[6]outputs.Aux1and2aresentto

theauxsends1and2[49]masterknobsbeforetheaux

sendoutputs;aux3and4aresentdirectly.

Theseoutputscanbefedtotheinputsofareverbor

otherdevice.Fromthere,theoutputsoftheexternal

devicearefedbacktothemixer’sstereoreturn[7]

inputs. Then these signals are sent through the stereo

return[51]levelcontrols,andnallydeliveredtothe

mainmix.

So,theoriginal“dry”signalscomefromthechannels

tothemainmix,andtheaffected“wet”signalscome

fromthestereoreturnstothemainmix,andoncemixed

together,thedryandwetsignalscombinetocreatea

glorioussound.Armedwiththisknowledge,let’svisit

theAuxiliaryWorld:

49. Aux Sends (Master)

Theseknobsprovideoveralllevelcontrolofauxsends

1and2,justbeforethey’redeliveredtotheirauxsend

[6]outputs.Thisisperfectforcontrollingthelevelof

stagemonitors,sinceyou’llbeusingaux1and2forthis,

withtheirpre[36]switchesengaged.Auxsends3and4

havenosuchcontrol—they’lljustsendtheirmixesdi-

rectlytotheirrespectiveauxsendoutputsatunitygain.

Theseknobsgofromoff(turnedfullydown),tounity

gainatthecenterdetent,with10dBofextragain

(turnedfullyup).Aswithsomeotherlevelcontrols,you

mayneverneedtheadditionalgain,butifyoueverdo,

you’llbegladyouboughta1642VLZ4.

This is usually the knob you turn up when the lead

singerglaresatyou,pointsathisstagemonitor,and

stickshisthumbintheair.(Itwouldfollowsuitthatif

thesingerstuckhisthumbdown,you’dturntheknob

down,butthatneverhappens.)

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Mackie 1642VLZ4 Owner's Manual Page 21

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