Mackie 1604VLZ4 Musical Toy Instrument User Manual


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1604VLZ4
1604VLZ4
27. Solo
Thislovableswitchallowsyoutochecksignalsin
thephonesorcontrolroomwithouthavingtoassign
themtotheL-R,1-2or3-4mixes.Youcansoloas
manychannelsasyoulike.Solodoesnotinterrupt
anyoftheotherchannels,busesoroutputs—that’s
callednondestructivesolo.
Usingthemode[44]
switch,the1604VLZ4’ssolo
systemcomesintwoavors:
normal(AFL)(sometimes
calledSIP,orsolo-in-place)
andlevelset(PFL)(sometimescalledPFL,
orpre-fader-listen).Themodeswitchisdescribed
intenderlovingdetailonpage21.
Levelset(PFL)tapsthechannelsignalbefore
thefader.Ifyouhaveachannel’sfadersetway
below“U”(unitygain),solowon’tknowthat
andwillsendaunitygainsignaltothecontrolroom,
headphones,andmeterdisplay.Thatmayresultin
astartlinglevelboostattheseoutputs,depending
onthepositionofthesolo[46]levelknob.
Inanutshell,soloedchannelsaresenttothesource
[42]mix,thatultimatelyfeedsyourcontrolroom,
headphonesandmeterdisplay.Wheneversolois
engaged,allsourceselections(mainmix,1–2,3–4,
andtape)aredefeated,toallowthesoloedchannel
todojustthat—solo!
28. –20 (Solo) LED
AnLEDthatdoestwocompletely
differentthings!Savesspace,recycles
theplanet,butrequiressome
explanation.First,the“–20”part:
Oftenreferredtoas“signalactivity,”
thisLEDwillickerintimewiththe
signalpresentinthatchannel.It’shandy
forconrmingthatachannelisindeed
active,andmayalsolendaclueasto
whatthesignalis.Forinstance,akick
drumwillcausetheLEDtopulseintime
withthedrum,andasynthpadwillcause
ittoglowabitmoresteadily.
Nowforthe“solo”part.Whena
channel’ssoloswitchisengaged,this
LEDwillglowsteadily,withoutickering.
Itwillalsobebrighterthanitwouldbe
asa–20indicator.Inconjunctionwith
therudesololight[47],youcannd
aroguesoloswitchquickly.
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29. OL (Mute) LED
AnotherLEDthatdoestwocompletelydifferent
things!First,the“OL”part:“OL”meansoverload,or
clip.Youdon’twantthattohappen.Ever.Clippingcan
happentoanymixer—it’sthepointwherethesignal’s
voltagetriestoexceedthesupplyvoltagesthatpower
thecircuitry.The1604VLZ4’sOLLEDwillcomeonjust
beforeclipping,soifyouseeit,takeimmediateaction:
Performthelevel-settingprocedureonpage5.Ifthat
doesn’thelp,checkforexcessiveuseofEQboostor
fadergain.Likethe–20LED,itwilltendtoickerin
timewiththatchannel’ssignal.
Nowforthe“mute”part.Assumingyourlevelsareset
correctly,theOLLEDwillnevercomeonasaresultof
clipping.That’sprettyboring.So,toliventhingsup,this
LEDwillglowsteadilywhenthatchannel’smute[30]
switchisengaged.
HereisaquickreferencetotheseLEDs:
30. Mute
Engagingthisswitchprovidesthesameresults
asturningthechannel'sfaderallthewaydown:
AnychannelassignmenttoL-R,1-2or3-4willbe
interrupted.Allthepostauxsendswillbesilenced,
aswillthedirectoutsignalsonchannels1through8,
andtheOL(mute)LEDwillglow.Thepreauxsends,
channelinsertsend,andsolo(inlevelset(PFL)mode)
willcontinuetofunctionduringmute.
Dependingontheaudiocontentinachannel,
engagingitsmuteswitchmaycauseaslightpopping
sound.Thisisnotaproblemwithinthemixer,andit
canbeavoided:Simplyengagethelowcut[33]switch
oneachchannel(unlessitslowfrequencycontentis
vitallyimportant,suchasakickdrumorbassguitar).
Lowcuteliminatessubsonicdebris,whichcausesthe
pop,anditseffectisusuallytransparent.
Name Color Flickering Glowing
–20(SOLO) green signalpresent channel soloed
OL(MUTE) red channelclipping channelmuted
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