Sony Boodo Khan Edition vs MDR-7506. Do they use the same drivers?

[Aerodynamik69]

I recently found a set of Sony Boodo Khan headphones and was blown away by their overall performance. These have amazing dynamic capabilities, they are easy to drive and the sound is very similar to a MDR-7506 but with better highs and bigger overall soundstage. Without tearing them open for an inside view I couldn't help but notice the drivers look very similar to the ones found on the MDR-7506. Anyone familiar with this rather obscure model and driver compliment?
So far they have far exceeded all expectations I had of these otherwise unassuming looking classics. Any information will be greatly appreciated. Any Boodo Khan fans out there?