SPL Phonitor
Because of the various parameters on the device you could listen through your headphones like you would listen to through your monitors.
You can adjust the "Crossfeed", "Speaker Angle" and "Center Level".
It might be ideal for the ones who often compose or mix on their headphones (e.g. at night, to avoid pissing off their neighbours


This gadget is not cheap, it's expected to cost around 1600 euro inc. VAT !
(I guess I'll stick with my monitors instead
