[sulkoudai]

everytime i don't use the my Hippo VBs for a long time....they sound a little bit 'un-durnt in' then it sounds better in about half an hour.......weird, i know...
 
i did notice that the VB sounded like 5 bucks headphones out of the box, but in 50 hours, its a completely different iem.

 

[nfinite]

it's the "burn in" effect...
 
yes, after I don't use my IEM for a long time, I think the sound feel a little different.. but I think that's because my brain is already forgot about what they actually sounds like and starts to adapt to the sound again...