@erik_squires
I see your confusion, yes, it is plain to see from your post that you don’t understand the logic of how to set up a sub for proper integration with music and movies.
I will break down my post for you, NP:
For anyone reading this who wants better bass the recipe isn’t secret. Get a preamp with a "sub out" and uses some type of room correction software.
Here are some links as examples:
A) https://www.dspeaker.com/anti-mode-x2
B) https://www.anthemav.com/products-current/model=str-pre-amplifier/page=overview
There are many others available, these are two examples.
Place your sub like the manufacturer suggests.
Why reinvent the wheel right? The company that built the sub generally know how to place it. Here is a link as an example.
Stack bass traps from floor to ceiling in the corners of your room:
When it comes to bass traps I feel quantity is very important, this is a starting point of course. I notice you use GIK Acoustics so here is A LINK to an article by them to learn more:
then run the room correction EQ wizard per the instructions.
You will need to run the software based on the instructions that come with your preamp or device.
I hope you aren’t confused anymore, just follow the above step by step, take measurements and post when you are done. Thanks.