Very warm, nice bass
Pros: Bass/low end, soundstage, comfort, isolation
Cons: Understated treble, slightly muddy midrange, very difficult to get in your ears
These phones have one of the best low-ends out there in the IEM category. The bass is huge, clear, and REAL; I would not describe the sound as bloated or artificially "thumpy" as some other bass-heavy phones tend to be. They also have the darkest sound of any phones I've ever heard, which works well for some music and largely depends on your personal preferences. The warm sound is excellent for jazz/blues and are my go-to phones for recordings which tend to sound sibilant. The soundstage is also quite good for IEM's. They do NOT have to be amped to produce quality sound, although I don't buy the Future Sonics claim that these perform exceptionally...
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