enragedlemon
100+ Head-Fier
I did one more listening test, this time much longer exposure time (30 mins) and involving some other family members.
Switched one headphones after another, tested all of my listed headphones, plus two unlisted. In the end, no one could tell the difference between Clip+, X3II or X5II me included. The only differences are what I already mentioned before.
That more or less reflects my own experience - I hear very little differences between my Clip Zip and my FIIO X3 II, but there's no doubt that the X5 construction is of a much better quality.
It would definitely be interesting to see an objective null test to prove your experience
![Headphone Smile :) :)](https://cdn.head-fi.org/e/headfi/smily_headphones1.gif)