Hanger brackets for use hanging speakers using the top vent slots on a Sony BVM/PVM CRT TV. I designed around a Sony BVM-D24 and have not tried with other model PVM/BVMs but I would be surprised if Sony used a different square vent spacing or size.
This model is only for units with no side venting. Hooks drop into the top vents and hang the speaker over the side of the CRT. There are two models one with pegs specifically for Sony SS-X1A speakers and another for use with 3M double sided tape to affix to the side of a speaker.
The author marked this model as their own original creation.