Originally Posted by oremor12
Wait, so does that mean the S4 has better and more powerful bass than the x10s regardless of time-length???
It's all perception.
From my experience, the S4 was really "dark" and the low end wasn't contained very well. Not having heard the X10 leaves me estranged to what they sound like...
But judging from my experiences over the past couple of years with BA IEMs, it's your ears that will require the adjusting. You have just gotten them; enjoy them and don't fret about the lack of bass, it's mostly your own ears. (Just to reiterate, this is coming off of MY experience, so your experience may be vastly different than mine.)