Yorkville Sound CA1 Stereo Amplifier User Manual


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totheamplier’sinputs)andcanbeusedtofeedanexternalpoweramplier,asignal
processor(e.g.anequalizer)oranyotherexternalappliance.Theunbalancedsignalis
affectedbytheindividualinputcontrols.BeforeusingthePREOUTyouneedtoremove
thebridging-stripbetweenthisbindingpostandtheMAININterminal(21).
21. MAIN IN Terminal Strip
Afterremovingthebridging-stripbetweenthePREOUTandtheMAININtermi-
nalsyoucanuseanexternalsignalprocessor(e.g.anequalizer)intheaudio-
chainbetweenthepre-amplierandthepoweroutputstageofthepowerampli-
erThisopportunityprovidesapropersolutionwhenevershapingorimproving
theaudiosignalisnecessary(adjustingdelaytimes,equalizing,eliminatingthe
Larsen-effect,etc.).Theinputisunbalanced,andisaffectedbythetonecontrols
andthemastervolumecontrol.
22. AUX 1 and AUX 2 Inputs
ThesetwoRCA-typeconnectorsletyouconnectthetwochannelsofanexternal
high-levelunbalancedsignalsource,suchasanAM/FMtuner,acassettedeck,aCD
playeretc.Useinputsensitivityswitch(27),suitablefordifferenceappliances.
23. INPUT 2, INPUT 3 and INPUT 4 lnputs
Thesethreebalanced/unbalancedcombinationtypejack(XLRand6.3mm)inputs
0 25V 0 25V 0 25V
COM 25V 70V 100V
DC 24V 15A
+
-
4Ω
Connecting the speakers to 25V output
0 70V 0 70V 0 70V
COM 25V 70V 100V
DC 24V 15A
+
-
4Ω
Connecting the speakers to 70V output
0 100V 0 100V 0 100V
COM 25V 70V 100V
DC 24V 15A
+
-
4Ω
Connecting the speakers to 100V output
RCA Plug
Unbalanced Signal
(channel Lo R)
Earth
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