Mackie 1642VLZ4 Musical Toy Instrument User Manual


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16
1642VLZ4
1642VLZ4
Constant Loudness ! ! !
The1642VLZ4’spancontrolsemployadesign
called“ConstantLoudness.”Ithasnothingto
dowithlivingnexttoafreeway.Asyouturn
thepanknobfromlefttoright(therebycausingthe
soundtomovefromthelefttothecentertotheright),
thesoundwillappeartoremainatthesamevolume
(orloudness).
Ifyouhaveachannelpannedhardleft(orright)and
reading0dB,itmustdipdownabout4dBontheleft
(orright)whenpannedcenter.Todootherwise,like
thoseBrandXmixers,wouldmakethesoundappear
muchlouderwhenpannedcenter.
32. 3-Band Mid-Sweep EQ
Theeightmonochannelshavea3-band,
mid-sweepequalization:lowshelvingat80
Hz,midsweeppeakingfrom100Hzto8kHz,
andhishelvingat12kHz.It’sprobablyallthe
EQyou’lleverneed!(Shelvingmeansthatthe
circuitryboostsorcutsallfrequenciespast
thespeciedfrequency.Forexample,the
1642VLZ4’slowEQboostsbassfrequencies
below80Hzandcontinuingdowntothe
lowestnoteyouneverheard.Peakingmeans
thatcertainfrequenciesforma“hill”around
thecenterfrequency.)
ThelowEQ
providesupto15dB
boost or cut below
80Hz.Thecircuitis
at(noboost
orcut)atthecenter
detentposition.Thisfrequency
representsthepunchinbassdrums,bass
guitar,fatsynthpatches,andsomereally
seriousmalesingerswhoeatbrokenglassfor
breakfast.
Usedinconjunctionwiththelowcut[34]
switch,youcanboostthelowEQwithout
injectingatonofsubsonicdebrisintothe
mix.Werecommendusingthelowcutfeature
onallchannels,exceptlowfrequencysignals,
likekickdrumsandbassguitars.
ThemidEQ,or“midrange,”hasaxedbandwidthof
1octave.Themidknobsetstheamountofboostorcut,
upto15dB,andiseffectivelybypassedatthecenter
detent.Thefrequencyknobsetsthecenterfrequency,
sweepablefrom100Hzto8kHz.
32
34
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
Mostoftherootandlowerharmonicsthatdenea
soundarelocatedinthe100Hz–8kHzfrequencyrange,
and you can create drastic changes with these two
knobs.ManyengineersusemidEQtocutmidrange
frequencies,notboostthem.Onepopulartrickisto
setthemidfullyup,turnthefrequencyknobuntil
youndapointwhereitsoundsjustterrible,then
backthemiddownintothecutrange,causingthose
terriblefrequenciestodisappear.Soundssilly,but
itworks.Sometimes.
ThehiEQprovidesyouup
to15dBboostorcutabove
12kHz,anditisalsoat
at the detent. Use it to add
sizzletocymbals,anoverall
senseoftransparency,oran
edgetokeyboards,vocals,
guitarandbaconfrying.Turnitdownalittletoreduce
sibilanceortomasktapehiss.
WithtoomuchEQ,youcanscrewthingsuproyally.
We’vedesignedalotofboostandcutintoeachequalizer
circuitbecauseweloveyou,andknowthateveryone
willoccasionallyneedthat.ButifyoumaxtheEQon
everychannel,you’llgetmixmush.Equalizesubtlyand
usetheleftsidesoftheknobs(cut),aswellastheright
(boost).Ifyoundyourselfrepeatedlyusingfullboost
orcut,consideralteringthesoundsource,such
asplacingamicdifferently,tryingadifferentkindof
mic,changingthestrings,orgargling.
33. 4-Band Fixed-Frequency EQ
Thestereochannels(9-16)havea4-band,
xed-frequencyequalization:lowshelvingat80Hz,
lowmidpeakingat400Hz,himidpeakingat2.5kHz,
andhishelvingat12kHz.
Eachoftheseltersprovidesupto15dBofboost
orcut.Aswiththemonochannels,thecircuitisat
(noboostorcut)atthecenterdetentpositions.
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
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