Having use the Fiio F9 pro for almost a year, and having to return it for repair 3 times already,twice for the earpiece cracking open, and once for a gaulty driver, I have to say that i cannot recommend this iem to any who expect a quality headphone woth solid build quality.
If i am to rate this iem by its sound quality alone, a solid 4 out of 5 star
If i am to rate this iem by its sound quality alone, a solid 4 out of 5 star