Some Amazing Videos by Nick Ames at JL

This videos are awesome on phase information and what phase is, especially if you have the ability to use open sound meter (free) or SMAART ($500-$1000) or the JL Audio Max. There are other softwares that can do it, those are just the most popular that I know of.

Set aside a couple hours to watch these, they are well worth it! Nick does an AMAZING job at breaking these things down!

https://youtu.be/NrJxJABjJOw

https://www.youtube.com/watch?v=FpbqAJpCKGg

JL has actually been putting out some really good how to videos the past couple of months

https://www.youtube.com/c/JLAudioInc/videos