No, you're fine, I was just trying to keep a straight face, while attempting humor, myself. I mean, can you imagine transmission-line-based headphones? That said, other than the size factor, not a ludicrous idea. But if you take size (weight, form factor, looks) into account, it goes deep into ludicrous territory.
Not sure where the transmission lines would go -- straight out from the ears (if it would be as big as the B&W tweeter enclosure), in a spiral shape around the ears (if bigger), or perhaps behind the head and/or into a "backpack" (if huge).
Billy -- not sure what you mean by "field" -- translate?