What headphone/IEM are you using to compare the two?
The J3 has very slight bass roll off.
Why are you listening with your ears instead of number, you silly you.
Ohhh, would you look at all that pretty pretty number ohh I can just feel my ears grinning with happiness to look listen at all those indisputable numbers.
I am not disputing anything, the graphs agree with what he says! I just posted it as a link for reference considering all the DAPs that keep appearing for discussion on the threads are in the link I provided above. You might want to think before jumping to conclusions.
Speaking of which, if you are going to talk about whether something is disputable or not, I would rather trust equipment that is complete free from perception bias which also has 'hearing' thousand fold more sensitive that my own.
Quality is very good, powerful yes, dynamic yes , transparency and image better on Z2 . No distortion and very musical
nice warm sound.
Nothing to complain about but Z2 has more resolution and detail if they are the correct adjectives
I have used Inearz re moulds of Logitech TF 10's my IEMs
Also small portable sennhiser PX200's mark II's
And full size sennhiser HD600's
I purchased mine 2nd hand from a great guy who purchased it 1st from audiothinker on ebay
each x3 has an online 20 digit authenticity check, mine not even scratched off by 1st purchaser
i did it and all good an authentic