Open vs closed headphones differences after equalization?

[hwlr]

Hello everyone!

Amirm is often commenting in his headphone reviews about how equalizing a headphone changes its spacial qualities; suggesting that the perception of space/soundstage is importantly dependent on frequency response. A question comes to my mind. Let's assume two almost identical headphones, the only difference being open vs closed (they show exactly the same frequency response). Do they bring the same spatial qualities, regardless of their open/closed nature? Would a listener be able to tell the difference during a hypothetical ABX testing? Or are spatial qualities not only related to frequency response?

 

[DVDdoug]

I would assume hearing the sounds around you will give a feeling if more space.

But most of it comes from the recording and your brain. Headphone Soundstage Survey

 

[hwlr]

Ok. Lots of reading, thanks!