John Darko von Digital Audio Review in Australien hat den Calyx Coffee getestet und kommt zu folgendem Fazit:
„… The Calyx Coffee is picture-perfect desktop audio: it looks wonderful, sounds superb with easy to drive cans and doesn’t fray at the edges when faced with more challenging headphone loads. It lifts computer audio out of the in-built-sound-card doldrums = job done. As an attractive addition to a portable/bedroom/office headphone set-up, it is more than worthy of your consideration.“
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