MIne just arrived, the sound, although lacking in bass impact is even and smooth in all freuqency ranges. The thing i really love about these little guys (and they are little, small enough to wear while lying on my side with my head on a pillow with no problem) is they fit so well in the ear. They are so comfy and lightweight they have taken the spot as my new workout/ skiing (perfect for any sports with a helmet or goggles) IEM.