Summary: IEM’s are known to have two driver types, balanced armature, and dynamic drivers. Recently, IEM’s like the Grado GR10 and the Ortofon series of earphones changed the IEM industry with moving armature drivers, which copy the movement of a regular dynamic driver.
Pros: Amazing low end - smooth mids - easy on the ears
Cons: Mids may be too smooth for some - treble is nothing to brag about
Conclusion: How to summarize that? Well, the DDM2 have something cinematic, larger-than-life to their sound. They can make most anything sound enjoyable, but some of their sonic traits might be detrimental to some people’s tastes.
Pros: Warm, bass-driven sound, euphonic and lush, Good, clear (albeit a bit recessed) treble due to second driver, Surprisingly low cable noise and wind noise, Comfortable to wear, Low isolation
Cons: Design and materials used do not reflect the price of the phones, Midrange clarity could be a bit better