Sony Walkman NW-ZX2

[qsk]

Улучшения vs ZX1 http://www.head-fi.org/t/742609/sony...#post_11196810

1. Super Capacitor- ensures signal accuracy by providing more power reserves (The super cap will make sure the main voltage rail remains stable, as well as increase power, so you can use wifi, gps, etc while playing music without deteriorating SQ which happens on phones)
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 more for stable frequency characteristics and lower noise.
3. PCB- 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 gold plated copper. 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.
6. 99.99% pure tin solder delivers a natural frequency balance.
7. MELF capacitors- used in the analog output stage, these metal electrode caps are the best possible you could use, a DIYers dream, and currently not found in any other daps. These are pictured next to the bottom two os-con caps, they are very small so look close.
8. Film condensors- Minimize interference from vibrations, waves and electrical sources. Again these are premium components, not found in any other daps. In the pictures, these are the green looking components next to the os-con caps.
9. Large coil resistors in analog circuit. For lower distortion, lower resistance power output. These are the large black square components next to the os-con caps and seem 3-4 times bigger than the ones on ZX1.
10. Double the battery capacity of the ZX1, this will actually halve battery impedance for better extension in bass and treble.