I've received the DACs today. The difference is fundamental at least in classics.
It's very hard to describe the sonic differences between the DACS because everything changed. It's not the same like changing cables or tubes,
you can easily hear that different DACs (parts of the Havana) are creating the sound.
The timbre and resolution are better.
Especially on transparent system and my electrostatic headphones.
The super change for super change money.
Thanks Niamex. WOW !
I do not really think these are fake, quality of writings are better than on original Korea DACs.
I have to purchase another pair of these for spare.