The Stellia is the flagship of closed headphones from Focal. Powered by the legendary, lightning-fast, and crystal-clear beryllium drivers, which have already made the Utopia great, this headphone impressively shows how sensational dynamic drivers can sound. One can definitely say that the Stellia plays unmatched in its class. Thanks to the low impedance and the included cables, the headphone is just as good for playback with portable players, especially from Astell &Kern.