IMAG is a contraction of Image Magnification.
You see it all the time at concerts or other organized shows, public events.
It could be a single speaker. It could be a performance.
IMAG is the setup and process by which you get to see what’s happening on larger displays.
For the linguistic geeks, grammatically this contraction is called a portmanteau.
You can see it here:
It is an extra to bring step up the experience.
Here’s some screenshots:
