Vox TB18C1 - Master Volume Control; Dark Switch; Power Switch; Rear Panel

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8. Master Volume Control
Thiscontrolstheoverallvolumeofyouramplier.Useinconjunctionwiththevolumecontrolto
ndtheperfectbalancebetweenpre/powerampdistortionandoutputvolume.
9. Dark Switch
Thisswitchallowsyoutofurthertweakyourampstonaldiversity.WhentheDarkswitchis
engaged,thehighfrequenciesaredramaticallycut.Thismakestheampfeellikeacompletely
differentbeast!
10. Power Switch
ThisistheON/OFFswitchforthepowertotheamplier.Pleaseensuretheamplierisswitched
offandunpluggedbeforebeingmoved.
Rear Panel
1. Output Jacks
Thisiswhereyoucanhookupanextensionorexternalspeaker
cabinet(s)ifdesired.
EXTENSION SP:Thisspeakerjackrunsparallelwiththeinternal
speakerswhicharewiredfor16Ohms.Theextensioncabinetmust
be16Ohms.
EXTERNAL SP:Thisspeakerjackwillmute(disconnect)the
internalspeakersandyoucanhookupeithera16Ohmor8Ohm
cabinet.BesuretosettheOutputSelectswitchaccordingly.
NOTE!HookingupacabinetthroughtheExternaljackwillmute(disconnect)theinternalspeak-
ers!
WARNING!Toensurethatyoursystemworkscorrectly,youmustobservethefollowingpoints.
a)Don’tuseanextensioncabinetwhoseimpedanceisotherthan16ohms.
b)Don’tconnectaspeakerwhoseratedinputcapacityislessthan18Watts.Thespeakermay
bedestroyedifyouignorethiscaution—notrecommended!
c) Youmustuseaspeakercabletoconnectanexternalspeaker.Don’tuseashieldedcablelike
theoneyouusetoconnectaguitartoanamp.
d)Youmustturnoffthepowerbeforeconnectingthecable.Connectingthecablewhilethe
poweristurnedonmaydamageyouramp.
2. IMPEDANCE Select Switch
16 OHMS:Combosallowforthefollowingcongurations;
• Setittothisifyouusetheinternalspeakersonly.
• Setittothisifyouconnectanexternal16OhmspeakercabinetthroughtheExternaljack.
8 OHMS:Combosallowforthefollowingcongurations;
• SetittothisifyouconnectanextensioncabinetthroughtheExtensionjack.You’llberun-
ningtheinternalandexternalspeakersinparallel.Theimpedanceoftheextensioncabinet
mustbe16Ohms.
• Setittothisifyouconnectanexternal8ohmspeakercabinetthroughtheExternaljack.
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