Mackie SRM550 Manuel du propriétaire télécharger pdf (Page 12)

SRM550/SRM650 Powered Loudspeakers

SRM550/SRM650 Loudspeaker: Rear Panel Features continued...

6. Thru Output

ThisisamaleXLR-typeconnectorthatproduces

exactlythesamesignalthatisconnectedtothe 

maininputjackoramixofchannels1and2.Useitto

daisy-chainseveralSRMloudspeakerstogetheroff

thesamesignalsource(s).

Theyarewiredasfollows,accordingtostandards

speciedbytheAES(AudioEngineeringSociety):

Balanced XLR Output Connector

Pin1–Shield(ground)

Pin2–Positive(+orhot)

Pin3–Negative(–orcold)

Seepage8tolearnmoreaboutdaisy-chainingSRM

loudspeakers.

Formoreinformationontheseconnectors,see

AppendixBonpage21.

7. Ch 1/Mix Switch [Thru Output]

Thisswitchallowsyoutochoosewhetheronly

thechannel1signal(pre-gain)issentouttothe

nextloudspeaker[switchout–Ch1]orifamix

ofthechannel1and2signalsaresentouttothe

nextloudspeaker[switchin–Mix](post-gains).

8. Speaker Mode

Hereyouareabletochangetheloudspeaker’s

speakermodetotailorittobestsuityourparticular

application.Therearefourmodes:PA,DJ,Monitorand

Soloist.Pressthespeakermodebuttonrepeatedlyuntil

theLEDofthespeakermodeyoudesireisilluminated.

RefertotheFrequencyResponsegraphsonpage25

forfurtherinformation.

PA Speaker Mode–Thismodeisfullrange,but

focusesonmid-rangeclaritywherevocalsoftenreside.

Thisistheplacetostartformostsoundreinforcement

applications.

DJ Speaker Mode–Thismodebumpsthelowsand

highswithamildtucktothemids,perfectformusic

playback.

SHIELD

COLD

HOT

SHIELD

COLD

HOT

Balanced XLR Output Connector

MON(itor) Speaker Mode–Thismodefeaturesa

lowfrequencyroll-offandareductionaround2kHzto

ensuremaximumgainbeforefeedbackinmonitor 

applications.

SOLO(ist) Speaker Mode–Thismodefeatures

alowfrequencyroll-offtogetridofunwantedthumps

andaddsboostandsparkletomid-rangeandhigh

frequencies.Thisplug-and-playmodeisperfectfor

singer-songwriters.

9. Feedback desTROYer:

Themulti-bandfeedbackdestroyerhuntsdown

offendingfeedbackfrequenciesandappliesuptofour

notchltersautomaticallytodestroyfeedbackand

maximizegainpriortofeedback.Thisisagreattool

forperformerswithoutadedicatedengineer.

TheintegratedandamazinglyaccurateFeedback

Destroyerinstantlyemploysuptofourincredibly

narrow1/16thoctavelterstolocateanderadicate

feedbacksoyouknowyoucanperformfearlessly.

Plus,theentiresystemisprotectedbyourSmart

Protect

™

DSPwhichkicksintoprotectyour

investmentwhenthingsgetpushedalittletoohard.

10. Main Logo Switch / Limit LED

TheRunningManlogoonthefrontoftheSRM

loudspeakerilluminateswhenthisswitchisdisengaged

andACpowerisavailableatthemainsinput[1].

EngagetheswitchifyoudonotwanttheRunning

Manlogotoilluminate.

SRM550andSRM650loudspeakershaveabuilt-in

limiterthathelpstopreventtheamplieroutputsfrom

clippingoroverdrivingthetransducers.Thelimit

indicatorilluminatesyellowwhenthelimiteris

activated.It’sokayforittoblinkyellowoccasionally,

butifitblinksfrequentlyorlightscontinuously,turn

downthegainknob[4]untilitonlyblinksoccasionally.

Excessivelimitingmayleadto

overheating,whichinturntripsthe

thermalprotectcircuitryandinterrupts

theperformance.See‘ThermalProtection’on

page18formoreinformation.

SIG/OLSIG/OL

8 9 10

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Mackie SRM550 Manuel du propriétaire Page 12

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