squawk box vs speaker system

squawk box and speaker system both are nouns.

Word	Noun	Adjective	Verb	Adverb
squawk box	Yes	No	No	No
speaker system	Yes	No	No	No

As nouns, speaker system is a hypernym of squawk box; that is, speaker system is a word with a broader meaning than squawk box:

squawk box: the loudspeaker on an intercom or public address system
speaker system: electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

Other hypernyms of squawk box include loudspeaker, loudspeaker system, speaker, speaker unit.

squawk box (noun)	speaker system (noun)
the loudspeaker on an intercom or public address system	electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance