"I was impressed with the Hi-X65 because the sound separation was totally different from the headphones I had heard before. The bass component of the songs felt very close and very pleasing. I would like to use these headphones as monitors. I was also impressed by how clearly I could hear the top note of the chord when I was listening mainly to the piano. The movement of the top note of the piano is an important part of the countermelody in songwriting, so when that part is clearly audible, it seems to me that the creator is able to convey the intention of the music."