Here are some interesting videos related to PA and sound reinforcement systems. Wikipedia defines that a public address system (PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. The term, sound reinforcement system generally means a PA system specifically for live music or performance. A sound reinforcement system for a rock concert or other large event in a stadium may be very complex.
A brief history of live sound reinforcement
Stage Left Audio – Event Video 11
Dave Rat about his sound engineering for the Red Hot Chili Peppers live tour 2016
LIVE SOUND SUBS SUBWOOFER PLACEMENT & CONFIGURATION: LR, Center, Cardioid, End Fire (Pt1)
Look inside D&B, L’Acoustics and MicroWedge Monitors
DJ Sub and Speaker Placement For Dummies
Cardioid Subwoofers and Nexo Technology Part 1
Time Lapse of a Large PA Audio Sound System Setup for Rock & Roll
#38 – Arena line array system walk-through
How to Set Up a Simple PA System
Sound System Tuning Step-by-Step using TRACT and Smaart
Audio 101- How to do a pro sound check.