Below are excerpts from the review:
Overall Signature —The most evident aspect the sound is improved dynamics, and improved punchiness in the bass, plus a brighter treble, more sparkle and more energy in the sound, with the improved technical resolution that an aftermarket cable usually provides. Naturally, there are some IEMs that won’t benefit from this as the producer companies include some of the best cables already with them, like FIR Audio e12 electron, Dita Perpetua, and Unique Melody Maven PRO. But with Spirit Torino Twin Pulse Beryllium, Soundz Avant, and Ambient Acoustics MAD 16, or even MAD 24, the ergonomics, and sonics are both improved when introducing the BC 125A, so there is no direct rule to which IEMs can benefit from a cable upgrade, and we have to approach the the subjecting on a case by case basis. Even with smooth sounding IEMs, like Tangzu Fudu Verse 1, the improvement in resolution, clarity, and dynamics is immediately evident. The synergy with the selected IEM will be far more important for a cable compared to most components.
From: audiophile-heaven
