Audiophilepure

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“The Zephyr from 2-4k has a more of a bump than the Tux 5 but also less of a treble dominance around 5-7k. Female vocals have a smoother richer tone to them on the Zephyr, as do percussion timbre. The Tux 5 is a little leaner with more treble shimmer on the overtone down to about 2k so higher-pitching notes have this slightly more ethereal quality to them.

On the low-end, the Tux 5 is tuned for a deeper and more powerful response with an L-like dip from the sub-bass down to that 1k marker. The Zephyr does not have the same sub-bass weight, instead it sounds punchier with more of a mild mid-bass rise and a sub-bass response that is more or less linear to the mid-bass.”