41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
457803
35621
2
Public Timelines
FAQ

jan 31, 1955 - Sound System

Description:

a system for amplifying audio for an audience; High fidelity, a sound system intended for accurate reproduction of music in the home; Public address, an institutional speech-reinforcement or public safety announcement system; Shelf stereo; etc.

Group Insights:
very helpful in big crowds or recepients

Added to timeline:

18 Dec 2017
0
0
557

Date:

jan 31, 1955
Now
~ 71 years ago

Images: