In the shown asymmetrical supply configuration, the DC blocking capacitor CDC will match {HEAD ~ the DC level} of {TAIL ~ the amplifier output} 
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In the shown asymmetrical supply configuration , the DC blocking capacitor CDC will match { HEAD ~ the DC level } of { TAIL ~ the amplifier output }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL