Also comes on top, what you want to use the headphones.
My Focal One S should be replaced as quickly by anything. On FiiO X1 in the subway of Focal One S is simply brilliant. However, the Focal One S is not for big ears. Sound is perfect. For gutter heads / ears is already quite tight and small. For 45 minutes commute but still first choice.
Now for Sennheiser Urbanite XL: My second headphone for notebook & at home was a AKG K545: Robust, sound OK until I have the Sennheiser Urbanite XL I found the notebook and on the phone, he sounds way better than the AKG.
Comfort is better, in my view. In direct comparison to Sennheiser Urbanite XL AKG K545 sounds like a telephone booth (it should still be people who know what it is.).
Conclusion: Focal One S is not improving in my view the FiiO X1. For longer working evenings Nobtebook the Urbanite XL is the better choice, because just more convenient and the sound (almost) as good as the high-end competitors.
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