Now we have other musical groups playing at more spacious park sites, using a portable stage and electronic amplification.
The introduction of electronic amplification allowed these issues to be addressed.
Over the course of his career, Sunday probably preached to more than one hundred million people face-to-face-and, to the great majority, without electronic amplification.
Without electronic amplification of the image, it was not possible to watch living microscopic creatures at high magnification.
But electronic amplification made a sharp, clear image of everything in the culture slide.
Thus fortified, the signal would continue on at the speed of light without having to pause for conversion and electronic amplification.
We have also the possibility of electronic amplification and distortion.
There is electronic amplification (not very good) for lawn sitters at the lip of the hill.
Its use declined beginning about 1920, as electronic amplification came into use.
Over the next few years they developed it into a predictable and reliable device that made electronic amplification possible for the first time.