Boom box and Stereophonic system

Boom box noun - A portable stereo.

Stereophonic system and boom box are semantically related. In some cases you can use "Stereophonic system" instead a noun phrase "Boom box".

Stereophonic system noun - Reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound.

Boom box and stereophonic system are semantically related. Sometimes you can replace phrase "Boom box" with "Stereophonic system", this phrases are similar.