ゆい 5 Which one do you prefer for the balance and single-end output of the headphone amplifier? The timbre and tonality of the two modes are pretty different. Sometimes, I would rather sacrifice some resolution and dynamic and choose single-end . That's why I bought this conversion cable.After more than 150 hours of break-in, With Hi-RES music to compare the cables, the reference earphone is the Sony ier-z1r. In my opinion, the resolution of this conversion cable is slightly lower, and the amount of mid-low frequency is a little more, which reduces the absolute clarity. Still, it brings out some lovely smooth, warm tones. Overall it's balanced and neutral.