Just thinking, which can be risky, but if a guy partitioned the space bit, still leaving the walls open at the top for the air volume that big speaker will like for free movement, the side spaces would make a nifty place too stash the cleaning supplies, and maybe a few tools or other "stuff" that you'd want to keep out of sight, tucked away for shows, cruises, etc. Easy access by flipping the seat back forward. Maybe not....