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ENVIRONMENT
1) Water and Moisture.Donotusethisproductnearwater-i.e.nearabathtub,ashbowl,kitch
ensinkorlaundrytub;inawetbasement;ornearaswimmingpoolorthelike.Dampbase-
mentsshouldbeavoided.
2) Heat.Theproductshouldbesituatedawayfromheatsourcessuchasradiators,heatregis-
ters,stovesorotherappliancesthatproduceheat.Alsoavoidputtingtheunitinthedirectrays
ofthesun.
3) For indoor use only.
PLACEMENT
1) Accessibility.Itisnormalforanaudiodevicetorunwarmifusedforprolongedperiods.
Alwaysplaceyourdeviceawayfromchildrenandpetstopreventburns.
2) Ventilation.Properventilationiscriticalforsafeandreliableoperationofallvacuumtube
basedequipment.Thisproductshouldnotbeplacedinabuilt-ininstallationorrackunless
properventilationisprovidedorthemanufacturer’sinstructionshavebeenfollowed.Never
placeanythingontopofyourpreamplierthatcouldobstructairowandcausevacuum
tubestooverheatanddamagetheunit.Donotplaceyourpreamplierinaclosedbookcase;
overheatingcouldoccur.Ensurethatthereisatleast6”(150mm)ofopenspaceabovethe
preamplier.
3) Surface.Placetheunitonaatlevelsurface.Careshouldbetakentopreventobjectsfrom
fallingandliquidsfromspillingintotheunit.Donotsubjecttheunittoexcessivesmoke,dust,
vibrationorshock.
MAINTENANCE
1) Cleaning.Unplugthisproductfromthewalloutletbeforecleaning.Donotuseliquidcleaners
oraerosolcleaners.Useadryclothforcleaning.Donotuseanytypeofabrasivepad,scour-
ingpowderorsolventsuchasalcoholorbenzene.
2) Tube replacement.Vacuumtubeshavelifeinthe5000hourrange.Werecommendreplac-
ingthetubesafter24-36months,dependingonyourlisteninghabits.Thatwillensurethatthe
preamplieralwaysperformsatitsbestandtubefailurewillnotoverstressotherpartsoftheunit.
3) Biasing the amplier.BiasingoftheEvolutionLineOneisnotrequired.
SERVICE
1) Replacement Parts.Whenreplacementpartsarerequired,besurethattheservicetechni-
cianusesreplacementpartsspeciedbythemanufacturerorpartswiththesamecharacter-
isticsastheoriginalpart.Unauthorizedsubstitutionsmayresultinre,electricshockorother
hazards.
2)Tubereplacement.Shoulditbecomenecessarytoreplacethevacuumtubes,removethe
ACpowerplugfromthewallandallowthirtyminutes(30min)forthehighvoltagecapacitors
todischarge.Followinstructionsoutlinedbelowinthesection“Handlingvacuumtubes”.
3) Modications.Modicationstotheamplierarestronglydiscouraged.Theunitwasde-
signedbyexperiencedengineersandtestedforsafeandreliableoperation.Anymodication
mayposessafetyriskandresultinreducedlifetimeoftheproduct.Anyremovalofthecover
willvoidwarranty.
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EVOLUTIONLINEONEStereoTubeLine Preamplier - User Manual