Thunderfunk Bass Amplifiers - Power Cord; Voltage Selector

14 | ThunderfunkBassAmpliersUsersManual
Theampwillproduceonlyaslightamountofadditionalpowerat2ohmsandthefanshouldde-
nitely be left on. It is not a good idea to run the amp this way.
As a reminder, the actual volume of your system is determined by many elements, the most
important being the sensitivity of the connected speakers. A speaker system with a sensitivity
that is 3 dB higher will, for the same volume, will use about ½ the power of the lower sensitivity
speaker system.
Fuse
Asneeded,andonlyafterdisconnectingthepowercordfromtheamplier,removethefuseby
usingastandardatscrewdriver,twistingcounterclockwiseabout1/8thturn.Thespring-loaded
fusewillpartiallypopoutforeasyreplacement.REPLACEWITHONLYTHESAMESIZEAND
TYPEaslabeledonthebackoftheamp.DONOTUSEFASTBLOWFUSES.(See“VoltageSelec-
tor” section below). Ifyouchangefrom100-120voltsto220-240volts,orback,youneedtoalso
changethevalueoftheFuse.ThefuseintheTFB800-B2isanAmerican3AGsizeslo-blorated
at8ampsfor100-120volts,Allampshavethefusesizeandtypeprintedonthebackoftheamp
near the fuse holder. You should always check the voltage selector switches whenever you’re
unsure of what the amp is set to. They are located under the cover plate above the AC power cord
connector.
NOTE:YoucanoperatetheampintheU.S.ona240voltcircuitifyousettheswitchesto240
volts.Pluggingtheampinto100-120voltswhentheselectorswitchesaresetto220-240volts
WILLNOTDAMAGEtheamp.HOWEVER,plugginginto220-240voltswhentheswitchesareset
to100-120voltsWILLDAMAGEtheamp.
Power Cord
Astandardpowercordisattached,ratedfor120VACat600watts.Inanemergency,sparepower
cordsareavailableatcomputer,andRadioShackstores.WeHIGHLYRECOMMENDyoupur-
chaseanESPpowercordfromESPinDetroit.Itimprovesthesoundoftheampby50to100%.
Forthatreason,powercordsareNOTsuppliedwithamps.
Voltage Selector
MostThunderfunkBassAmpsaredesignedtooperateat50or60Hz.Tosetthevoltagefordif-
ferent areas around the world, remove the two screws that attach the Voltage Selector Cover
Plate, located at the far left, above the AC input connector. A voltage setting guide is printed
undertheplate.Tosetfor100volts(Japan)thetopswitchshouldbesetto100Vandthebottom
switchsetto+0V.For120volts,setthetopswitchto100Vandthebottomswitchto+20V.For
theEUdeterminewhatyouractualvoltageis.