Its time to document the ZX2 hardware improvements over ZX1 which we can see from the Sony Style CN site pictures, these are all genuine ZX2 hardware improvements not found in the ZX1!
http://www.sonystyle.com.cn/products/media_player/nw_zx2.htm
1. Super Capacitor: detailed explanation of what it does here: https://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0CFcQFjAH&url=https%3A%2F%2Fwww.tecategroup.com%2Fwhite_papers%2Fbadnames%2FPumpUpTheVolume.pdf&ei=376rVIGdFee_mAXRgoDwCQ&usg=AFQjCNHk-w1SPhLey1MdR-XdpQ0FTFh_RA&sig2=y__BbJ0MD0qO_cQFQCve6w&bvm=bv.82001339,d.dGY
2. 3 more Os-Con Caps, used in power filtering. Still retains the other 4 os-con caps like ZX1 in the analog circuit, but adds 3 for power filtering.
3. PCB- Most likely uses a thicker gold plated copper PCB than ZX1.
4. 2 Crystal Clocks- ZX1 could only do 44.1, 88.2 176.4 native, ZX2 adds 48, 96, 192 native.
5. Chassis- Noise isolation improved by encasing audio components in either gold plated copper or brass. ZX1 just used the aluminium chassis to isolate from the screen, ZX2 isolation metals are better, and isolate both front and back of player unlike ZX1, and also compartmentalize the battery, both seen below.
6. High purity lead free solder used throughout.
7. MELF capacitors- used in the analog output stage, these metal electrode caps are the best possible you could use, a DIYers dream, and not found in other daps on the market! These are pictured next to the bottom two os-con caps, they are very small so look close.
8. Lower noise, higher accuracy hardware components. Again these are premium components, the best possible components a dap could use, and currently not found in other daps.[size=12.7272720336914px] [/size][size=12.7272720336914px]In the pictures, these are the green looking components next to the os-con caps.[/size]
9.[size=12.7272720336914px] Bigger voltage regulators. These are the[/size][size=12.7272720336914px] black square components next to the os-con caps. This also means increased power output! They are pictured to be ~4 times bigger than the ZX1's, lets hope the power output follows suit, but I can guarantee at least double power output though.[/size]
10. Double the battery capacity of the ZX1, this will actually halve battery impedance for better audio quality.