Tokyo's "Extinct Media Museum" is quite nice, brings up many memories (phun intended..)
@dec23k
Thank you - I was jumping to conclusions in assuming these were volume sliders.
If implemented nowadays, I would guess they would distribute the signal via Bluetooth Auracast to multiple devices, and these would then have their own volume control.
@skyfaller
@globalc @skyfaller
Slight correction to my earlier reply: they were just volume sliders (one L, one R). I shouldn't have said 'balance' as that's usually a different control.
I was going on a memory of using one of them (with one pair of headphones).