In message , Eiron
writes
Ian Jackson wrote:

When listening to mono on headphones, I usually prefer to connect the
earpieces in antiphase. When they are in-phase (which is, of course,
the normal condition) the audio image is dead in the centre of your
head. This is very 'unreal', and soon becomes rather tiring. When in
antiphase, the image is spread throughout your head, and is much more
pleasant to listen to. I think that the same reasoning could be
applied to loudspeakers.

Do you have a special pair for mono with one driver reversed or an
adapter plug?

I use what is known as 'TTT' ('Tobacco Tin Technology'). Two headphone
sockets are mounted through the wall of the tin. One is for the input
from a mono audio source. The other is the output to a normal pair of
stereo headphones. The two sockets are cross-wired so that the
headphones are in series (no particular reason - parallel would work
just as well - it just seemed a good idea at the time) and in antiphase.
If I have a stereo source, I don't use TTT. I just plug the headphones
directly into the audio source. Of course, I really should have added a
phase-reversing to the tobacco tin, but life's too short.

However, I'm sure I've seen adverts for headphones which do have a
reversing switch. I feel a Google coming on.
--
Ian