Reply by DS

Have you considered your sound system in this design?
Bookshelf speakers are okay, but my preference is to conceal the speakers.
I am also thinking you might want more shelves in the sections left/right of the TV (2 high vs 1)

It is looking nice. This is the time to experiment with different arrangements until you find the one you can’t live without. Good job so far!

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251