Mackie 1642VLZ4 Owner's Manual download pdf (Page 17)

Owner’s Manual

34. Low Cut

Thelowcutswitch(notpresentonchannels13-16),

oftenreferredtoasahighpasslter,cutsbassfrequen-

ciesbelow75Hzatarateof18dBperoctave.Thisain’t

nothrown-indime-storelter—an18dBperoctave

curverequiresanelaboratecircuit.Nothingbutthebest

foryou.

Werecommendthatyouusethisoneverysound

sourceexceptkickdrum,bassguitar,orbassysynth

patches.Theseaside,thereisn’tmuchdowntherethat

youwanttohear,andlteringitoutmakesthelowstuff

youdowantmuchmorecrispandtasty.Notonlythat,

butlowcutcanhelpreducethepossibilityoffeedback

inlivesituations,andithelpstoconserveamplier

power.

Withlowcut,youcansafelyboostlowEQ.Many

times,bassshelvingEQcanreallybenetvoices.

Troubleis,addinglowEQalsobooststhesubsonic

debris:Stagerumble,michandlingclunks,windnoise

andbreathpops.Lowcutremovesallthatdebrissoyou

canboostthelowEQwithoutblowingyoursubwoofers.

Here’safrequencycurveoflowEQcombinedwith

lowcut:

35. Aux 1, 2, 3, & 4

Thesefourknobstapaportionofeachchannel’s

signal,mixthemtogetherandsendthemtotheaux

send[6]outputs.Theyareoffwhenturnedfullydown,

deliverunitygainatthecenterdetent,andcanprovide

upto15dBofgainturnedfullyup.Chancesareyou’ll

neverneedthisextragain,butit’snicetoknowit’s

thereifyoudo.

Theauxsendoutputsarethenpatchedtoparallel

effectsprocessorinputsorstagemonitorampinputs.

Auxsends1and2levelsarecontrollednotonlybythe

channel’sauxknobs,butalsobytheauxsend[49]

masterknobs.

100

10k

20k

–15

–10

–5

+10

+15

Auxsendscanalsobeusedto

generateseparatemixesforrecording

or“mix-minuses”forbroadcast.

Byusingaux1or2inthepre[35]

mode,thesemixlevelscanbeobtained

independentlyofachannel’sfader[25]

settings.

Werecommendgoingintoa

stereoreverbinmonoand

returning in stereo. We have

foundthatonmost“stereo”reverbs,the

secondinputjusttiesupanextraaux

send and adds nothing to the sound.

Thereareexceptions,sofeelfreetotry

it both ways. Should you choose to use

twoauxsends,usethe“odd”aux(1or

3)tofeeditsleftinputandthe“even”

aux(2or4)tofeedtherightinput.

Remember,ifyou’realsodealingwith

astereosourcesignal,you’llwantto

followthesides—usetheoddauxon

thechannelcarryingtheleftsideand

theevenauxonthechannelcarryingtheright.

36. Pre

Thisswitchdeterminesthetappointofaux1and2.

Generally,“post”sendsareusedtofeedeffectsdevices,

and“pre”sendsareusedtofeedyourstagemonitors.

Seethe“Prevs.Post”diagrambelow.Aux3and4are

alwaysinpostmode.

Inpostmode(switchup),aux1and2willfollow

theEQ[32],lowcut[34],fader[25],andmute[30]

settings.Ifyoufadethechannel,youfadethesend.

Thisisamustforeffectssends,sinceyouwant

thelevelsofyour“wet”signalstofollowthelevel

ofthe“dry.”

Inpremode(switchdown),aux1and2followthe

gainandlowcutsettingsonly.EQ,pan,fader,andmute

settingshavenoeffectonthepresends.Thisisthe

preferredmethodforsettingupstagemonitorfeeds

—they’llbecontrolledindependentlyofthefaderand

mutemoves.

INPUT TRIM INSERT

LOW

CUT

PAN ASSIGN

MUTE

FADER

'POST' SIGNAL

'PRE' SIGNAL

PRE SWITCH

AUX 1

AUX 2

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 31 32

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Mackie 1642VLZ4 Owner's Manual Page 17

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