So it is for the K7.. series

 Those models use memory foam earpads : KXX , K712 , K702/65th

received mine today,nice sound no rattle

Thank you for the Video !!!

@SpiderNhan A photo please ! How do you open it ?

this is a real innovation :http://de.akg.com/akg-n90q-de.html

 Massdrop:  "....To make sure that the channels are synced up and well-balanced, each transducer is individually tested and paired to a transducer with the closest possible sound signature. To see just how well the channels match, look at the below graph featuring an overlay of each...

You can't compare the earpads from the Kxx with the Q701,they are total different.

They told us :"each transducer is individually tested and paired to a transducer with the closest possible sound" I don't believe it.

With this test my Creative rattles too,but never appears during musik listening

It's a shame that nobody at massdrop had tested this before !

It drives with ease my DT880/600 Ohm

Quote: x2     

Quote: The cable of the IEM functions as an antenna.  

 What does high or low power settings actually do?