I know the update content but it was improved :) Lucky Or you think sound is not changed?

Yes, many people in forum in my country confirm this. The instrumental separation is the great update.

FW 1.11 is the best update of sound quality I've updated. I luv it :)

There is update of Neutron music app last night. It improved the sound stage and instruments seperation but the bass is gone.   For mine, I love this update but for some people may hate it.

My friend in Japan bought for me. So I have to ship ZX1 to him to claim.   I don't know detail in warranty also. But Sony store provided more like be stolen, water, ... etc.

I could not registered touch the affected area any screen or app. The screen is "Touch screen test" app.   I purchased with Sony Store (warranty 3 years) Anyway, I will try to factory reset to confirm Hardware or Software issue.

The touch screen some zone doesn't work since yesterday. My ZX1's old is 1 month and 1 week. Try to reset but won't work T_T...

ZX1 +334 + piccolino is great pair. Sound stage & Vocal are cool.

~100 hrs has passed. The instruments separation are very good compare with first 10 hrs. I really love ZX1 right now. 

Mine is below   I love the detail and sound stage of this port but h/o bass is greater.

Thanks Rudi that confirms my USB cable won't break and USB DAC(X1, Cruise) is not supported.

Thanks for correct my poor english T_T. Rudi is using Centrance Hi Fi M8 and work with ZX1.

Thanks for sharing, In my memory, I used to use ipod/iphone digital out with USB DAC. The volume can not be used.

Rudi to show WM-Port = USB DAC connection via USB cable but no sound.

When I try with WM dock to mini. I can not use vol function the volume has changed to "External output" But for USB cable it not same.