Owner’
s Manual
13
Owner’s Manual
Protection Circuitry
4HE4HUMP3SUBWOOFEREMPLOYSABUILTINLIMITER
FORLESSDISTORTIONATPEAKLEVELS!DDITIONALPROTECTION
INCLUDESAUTOMATICTHERMALSHUTDOWNSHOULDTHEAMP
OVERHEAT(OWEVERWITH#LASS$AMPTECHNOLOGYWHICH
ISHIGHLYEFlCIENTTHISSHOULDNEVERBEAPROBLEM
4HEPROTECTIONCIRCUITSAREDESIGNEDTO
PROTECTTHESUBWOOFERSUNDERREASONABLE
ANDSENSIBLECONDITIONS3HOULDYOUCHOOSE
TOIGNORETHEWARNINGSIGNS;EGEXCESSIVEDISTORTION=
YOUCANSTILLDAMAGETHESPEAKERINTHE4HUMP3BY
OVERDRIVINGITPASTTHEPOINTOFAMPLIlERCLIPPING
3UCHDAMAGEISBEYONDTHESCOPEOFTHEWARRANTY
Limiting
4HEDRIVERHASITSOWNCOMPRESSIONCIRCUITWHICH
HELPSPROTECTITFROMDAMAGINGTRANSIENTPEAKS
4HECOMPRESSORISDESIGNEDTOBETRANSPARENTAND
ISNOTNOTICEABLEUNDERNORMALOPERATINGCONDITIONS
Overexcursion Protection
!SUBSONIClLTERCIRCUITJUSTPRIORTOTHEPOWER
AMPLIlERPREVENTSULTRALOWFREQUENCIESFROMBEING
AMPLIlED%XCESSIVELOWFREQUENCYENERGYCANDAMAGE
THEWOOFERBYCAUSINGITTOhBOTTOMOUTvALSOKNOW
ASOVEREXCURSIONWHICHISEQUIVALENTTOAMECHANICAL
FORMOFCLIPPING
Thermal Protection
!LLAMPLIlERSPRODUCEHEAT4HE4HUMP3IS
DESIGNEDTOBEEFlCIENTBOTHELECTRICALLYANDTHERMALLY
)NTHEUNLIKELYEVENTOFTHEAMPLIlEROVERHEATING
ABUILTINTHERMALSWITCHWILLACTIVATEMUTINGTHE
SIGNAL
7HENTHEAMPLIlERHASCOOLEDDOWNTOASAFE
OPERATINGTEMPERATURETHETHERMALSWITCHRESETS
ITSELFANDTHE4HUMP3SUBWOOFERRESUMESNORMAL
OPERATION
)FTHETHERMALSWITCHACTIVATESTRYTURNINGDOWN
THELEVELCONTROLANOTCHORTWOONTHEMIXINGCONSOLE
ORTHEBACKOFTHESUBWOOFER TOAVOIDOVERHEATINGTHE
AMPLIlER"EAWARETHATDIRECTSUNLIGHTANDORHOTSTAGE
LIGHTSMAYBETHECULPRITOFANAMPLIlEROVERHEATING
AC Power
"ESURETHE4HUMP3SUBWOOFERISPLUGGEDINTO
ANOUTLETTHATISABLETOSUPPLYTHECORRECTVOLTAGE
SPECIlEDFORYOURMODEL)TWILLCONTINUETOOPERATE
ATLOWERVOLTAGESBUTWILLNOTREACHFULLPOWER
"ESURETHEELECTRICALSERVICECANSUPPLYENOUGH
AMPERAGEFORALLTHECOMPONENTSCONNECTEDTOIT
7ERECOMMENDTHATASTIFFROBUST SUPPLYOF!#
POWERBEUSEDBECAUSETHEAMPLIlERSPLACEHIGH
CURRENTDEMANDSONTHE!#LINE4HEMOREPOWERTHATIS
AVAILABLEONTHELINETHELOUDERTHESPEAKERSWILLPLAY
ANDTHEMOREPEAKOUTPUTPOWERWILLBEAVAILABLEFORA
CLEANERPUNCHIERBASS!SUSPECTEDPROBLEMOFhPOOR
BASSPERFORMANCEvISOFTENCAUSEDBYAWEAK!#SUPPLY
TOTHEAMPLIlERS
.EVERREMOVETHEGROUNDPINONTHE
POWERCORDORANYOTHERCOMPONENTOFTHE
4HUMP3SUBWOOFER4HISISVERYDANGEROUS