stereophonic system vs stereophony

stereophonic system and stereophony both are nouns.

Word	Noun	Adjective	Verb	Adverb
stereophonic system	Yes	No	No	No
stereophony	Yes	No	No	No

As nouns, stereophonic system and stereophony are synonyms defined as:

stereophonic system and stereophony: reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound

Other synonyms of stereophonic system include stereo, stereo system.

stereophonic system (noun)	stereophony (noun)
reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound	reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound