When it comes to sound quality, the 1950S Shielding and the 1960S Shielding stand out as exceptional pure copper cables in my experience. They could be described as the best upgrade cables I've come across, likely due to their perfect compatibility with the setup. These cables completely defy my expectations of copper cables, embodying the essence of what upgrade cables should be. They enhance the overall frequency and quality instead of favoring one range over others or simply altering the sound profile.

Both the 1950S and the 1960S excel in the traditional strengths of copper cables, delivering excellent low-frequency richness and warmth, along with smooth high-frequency extension. They shine in terms of soundstage, richness, detail retrieval, resolution, and dynamics. The primary differences between these two cables, in my view, lie in the level of detail and tuning they offer. For instance, the 1950S emphasizes low-frequency reverberation and dynamics more than the 1960S. In the vocal range, the 1950S provides a more intimate and brighter sound, while the 1960S is rounder. In the high frequencies, the 1960S leans slightly towards brightness. Both cables showcase remarkable extension in both high and low frequencies and perform admirably in terms of response speed, richness, detail retrieval, and dynamics. While the 1950S has a bit more pronounced dynamics compared to the 1960S in my assessment, overall they are quite similar. It's challenging to identify any significant faults, and without a direct A/B comparison, it would be hard to discern any discrepancies. Regarding personal preferences, I would opt for the 1950S for popular rock music and reserve the 1960S for instrumental tracks.

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