Mackie Thump 12 - Rear Panel Features and Controls; Power Connection and Switch Operation; Power Status LED Indicator; Versatile Input Connectors

Owner’s Manual
9
Owner’s Manual
Thump12 / Thump15 Loudspeakers: Rear Panel Features
1. Power Connection
Thisisastandard3-prongIECpowerconnector.
Connectthedetachablepowercord(includedin 
thepackagingwiththeloudspeaker)tothepower
receptacle,andplugtheotherendofthepower 
cordintoanACoutlet.
MakesurethattheACpowerismatchedto
theACpowerindicatedontherearpanel
(belowtheIECreceptacle).
Disconnectingtheplug’sgroundpinis
dangerous.Don’tdoit!
2. Power Switch
Pressthetopofthisrockerswitchinwardstoturnon
theloudspeaker.Pressthebottomofthisrockerswitch
inwardstoturnofftheloudspeaker.
Asageneralguide,themixer(orother
signalsource)shouldbeturnedonrst,
subwoofersnext,andloudspeakerslast.
Assuch,theloudspeakersshouldalsobeturned
offrst,followedbythesubwoofers,thenthemixer.
Thiswillreducethepossibilityofanyturn-onor
turn-offthumpsandothernoisesgeneratedbyany
upstreamequipmentfromcomingoutofthespeakers.
3. Power LED
Whenthepowerswitchisturnedon–andthepower
cordisconnectedtoanactiveACmainssupply–this
LEDilluminatesgreentoindicatethattheloudspeaker
isindeedreallyon.ThecoolgreenLEDonthefrontof
theloudspeakerworksthesameway.
4. XLR and 1/4" Combo Inputs
TheinputonThumploudspeakersisacombojack
thatmayacceptbalanced/unbalancedXLRand1/4"
connections.Theinputmayhandleanythingfroma
microphonetoaline-levelsignalsuchasfromamixer.
SimplyconnectanXLR,TRSorTSconnectorintothe
channelandadjustthelevelaccordingly.
NEVERconnecttheoutputofanamplier
directlytotheinputoftheloudspeaker.
Thiscoulddamagetheinputcircuitry
oftheactiveloudspeaker.
XLRconnectorsarewiredasfollows,accordingto
standardsspeciedbytheAES(AudioEngineering
Society):
Balanced XLR Input Connector
Pin1–Shield(ground)
Pin2–Positive(+orhot)
Pin3–Negative(–orcold)
2
3
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
2
1
Balanced XLR Input Connector
2
3
11
67 8 109
5 4
1