Why SET amp or T-amp for full-range single driver?

[Kreshna]

Love the TPA 3116 driving my Fostex Frugal Horns.

View attachment 1007874

Is the damping factor low enough that the speakers don't require BSC, like they don't when driven by SET amp?

 

[Poultrygeist]

Is the damping factor low enough that the speakers don't require BSC, like they don't when driven by SET amp?

yes but BL Horns don't require BSC