I just bought the Andro2020 and feel greatly impressed and disappointed at the same time. Its sounds great, but turn out my unit (right ear piece) is faulty.
After a brief period of listening session, I noticed that the sound coming from the right ear piece (especially in the mid, low regions) are having this weird buzzing noise. Through a very thorough testing with different equipment. I have concluded (with the help of the guys at my local audio shop) that one of the driver(s) in the right earpiece is literally loose and are shaking, somehow. The buzzing/rumbling would stop if i put a bit of pressure to the backplate, first kilobuck iem and my luck already go to S**t. Luckily this also surprised the guy at the local audio shop and they are already contacting CA for warranty.