Overall, after the cable replacement, the most noticeable change is the enhanced energy of the U18t. With the upgraded cable, the overall energy of the earphones has been elevated, and there is a noticeable improvement in the quantity, elasticity, and texture of the low frequencies. Combined with the earphones' original high resolution and non-stuffy characteristics, listening to electronic and pop dance music feels powerful and dynamic without being overwhelming. The U18t performs excellently with the rhythm and low frequencies in Rihana's "S&M" after the cable replacement, delivering clean and tight sounds.

Regarding vocals, the U18t with the new cable sounds relatively richer and denser. The U18t itself produces a high-density sound, but due to the fact that it is composed of multiple units, the sound can feel somewhat fragmented, like a discontinuous function. However, the PW No.5 cable reduces this sensation significantly. In addition, the U18t with the PW No.5 cable exhibits less sibilance and greatly reduces any harshness, resulting in an overall smoother and more tolerable sound. However, the transparency has not decreased due to the cable replacement.

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