Mackie 18S Headphones User Manual


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Thump18S Powered Subwoofer
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Thump18S Powered Subwoofer
Thump18S Subwoofer: Rear Panel Features continued...
5. High Pass Outputs
Typically,full-rangeloudspeakersareconnected
tothehighpassoutputsto“split”theworkwiththe
Thump18Ssubwoofer.Thesubwooferhandlesallofthe
lowfrequenciesandtheloudspeakershandletherest.
Asaresult,itismoreefcientandabitlouder.
BalancedXLRmaleconnectorsareprovidedforthe
line-levelAandBhighpassoutputs.Thesubwoofer’s
crossoversplitstheinputsignalsintotwofrequency
bands.Thelowfrequencyrangebelow140Hzgoesto
theinternalamplierthatpowersthesubwoofer.The
frequencyrangeabove140Hzissenttotheseline-level
outputjacks.
Thelevelcontrolandpolarityswitchhavenoeffect
onthehighpassoutputs.Theoutputsareseparateand
maintainthestereoseparationoftheinputsignals.
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)
2
1
SHIELD
COLD
HOT
3
SHIELD
COLD
HOT
3
2
1
Balanced XLR Output Connector
6. Full Range Outputs
Connectthefullrangeoutputstotheinputsof
anotherpoweredsubwoofer,poweredloudspeakers,
ortoanamplierpoweringpassiveloudspeakers.
BalancedXLRmaleconnectorsareprovidedforthe
line-levelAandBfullrangeoutputs.
Thesignalattheseoutputsisadirectcopyofthe
inputsignals.Theseoutputsallowyoutodaisy-chain
multiplesubwoofersand/orsendthefullrangesignals
toloudspeakers.It’sagreatwaytoaddsidells,too!
Thelevelcontrolandpolarityswitchhavenoeffect
onthefullrangeoutputs.Theoutputsareseparateand
maintainthestereoseparationoftheinputsignals.
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7tolearnmoreaboutdaisy-chaining
Thump18Ssubwoofers.
Formoreinformationontheseconnectors,see
AppendixBonpage15.
2
1
SHIELD
COLD
HOT
3
SHIELD
COLD
HOT
3
2
1
Balanced XLR Output Connector
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