Double Wall, Half Truth: Reaction Podcast

It's time for another reaction video, this time I am reacting to one of Acoustic Fields video's on the "half truth" of the double wall system.

In this video I go over:

Why mass and springs matter for an isolation system to work.
How air space affects isolation.
How more mass helps with low end isolation.
The problem with small room acoustics.
Why Acoustic Fields solution may work, but cost you a fortune. Is the value to cost ratio worth it?
How his system works.
My conclusion - do you need sandwiches?