Summary: The detail of these is very good, as is the imaging although they don't have the largest soundstage. They aren't cold or too analytical for a balanced armature. I've stepped on these without issue. The sound is plain impressive. Very even throughout the frequency range with nice detailed bass thats not at all boomy or loose. You really hear everything in the music. I've had the Shure SE110 which was OK but missing chunks of sound.
Pros: Detail, balanced sound excellent fit and comfort.Blocks out noise without electronic help. Build quality.
Cons: Some have issues with cable and price is too much at full retail. The bass will not be enough for bassheads but is plenty for most.
Summary: They are surpsisngly fun sounding and they give almost surround sound effect with detailed mids and good punchy bass and almost good for all genres music. The highs are not extended but overall they are detailed yet fun sounding and with good built quality. If compare to the X10i then X10i are more warm and very detailed in mids, more highs, with deep punchier bass than X5. But i find X5 are more fun, more balanced and very engaging IEMs.
Pros: surround sound effect, great mids, realy good punchy bass, crisp clear highs...