Have been playing a 24 bit 192KHz album called 'Muddy Waters - folk singer' through the TA ZH1ES, via my ZX2 and listening on my MDR Z1R headphones. Wow. Just wow. The fact that this live album has been so beautifully recorded means the 24 bit 192KH stream of music that you get is, well unlike anything I have heard before. The instrument separation is phenomenal. Now I know what it feels like to be able to easily focus on a single instrument. You can hear the strings being plucked right neat to your ears, you can feel the fingers thrumming, you can hear the singers breath, hear his lowly muttering, hear the feet scrape on the floor. This is something wonderful! I never knew music could be so organic and real.
The ZX2 doesn't play DSD256. Will play this through 'USB Audio Player Pro' on my samsung (have downloaded some DSD256's) and see how they sound. Perhaps DSD256 is overkill.
The amp is a gem. A real gem.