IF you are tempted by any used speaker, i.e. that little bose, or the Klipsch for instance. you can search for ’buy it now’ and ’free returns’
order it now, try it, keep it, work with it’s size, or return it
As I mentioned, the little Bose sounds surprisingly good, however, notice the top has some slots for sound dispersion, which negates boxing it in too tightly. That was the primary reason I changed to the Klipsch, to have it under a glass shelf below the TV, and no rear ports
It’s a lousy photo, but the 3rd photo shows my HT setup
I modified a tall unit, then built a C shaped riser of matching wood, placed a slab of glass on the riser, the TV on the glass.
Above the TV is a piece of art my brother made, not a speaker.
That photo is 'beyond lousy'.