No, its not "rocket science". Its acoustics.
Your speakers are too close together to attempt any kind of imaging.
One enclosure is leaning against a wall and not fully supported likely compromising bass output and quality.
It also has a lamp on it that could rattle.
One enclosure has its baffle at 45 degrees to a window, a most undesirable surface and definitely not one you would want that close to a speaker.
Both enclosures are virtually against a wall meaning far from optimum bass reproduction unless they were specifically designed to be located so and one is in a corner which is pretty much the worst possible position for everything.
You need to have a look at speaker placement and room design before you worry too much more about cheap Op amps....