I've noticed some amps have this feature that simulates listening to loudspeakers. I would really like to try this. Since I've been listening to higher resolution open ear headphones some songs just don't seem right with separated stereo(Ariel Boundries by Michael Hedges for example). I've never really noticed this since I've usually listened to earbuds that don't image in the same way and have a much smaller sound stage.
I assume what this feature does is mix the right and left channels to various degrees. Is there any way to do this on my Mac?