A loudspeaker RL and a DC blocking capacitor CDC are connected in {HEAD ~ series} between the output node of the amplifier Ao and {TAIL ~ ground} 
A loudspeaker RL and a DC blocking capacitor CDC are connected in { HEAD ~ series } between the output node of the amplifier Ao and { TAIL ~ ground }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL