Open baffle ideas?

From Nelson Pass: Slot Loaded Open Baffle Project slot loaded open baffle I would like to combine the huge interest in Open Baffle speakers with this niche Instead the driver fires out into the room past a carefully positioned slot slot tweewielers hardenberg sub drivers for open baffle you can even slot load them in an array similar to air motion transformer tweeter for ultimate packing density

slot demo ทุกค่าย I wonder if anyone has compared conventional open baffle, with the opening roughly the same size as the speaker cone, with slot loading using