I have only had the NAD HP50 for about a week and that was a while ago. The Focal Spirit Pro did not fit my head/ears, and the headband cracked in the first month of use.
What I am wondering about is why is NAD HP50 not considered Leaderboard material, while the Focal Spirit Pro is?
Please enlighten me
Re: the NAD Viso HP50, I thought that the pair I had more than a bit of cup coloration in the male vocal range. Something of a hollow coloration going on.
Also, FWIW, the HP50 was just as crap for me durability wise as the FSP: the headband on mine cracked above the gimble/adjustment mechanism after just three weeks of use. Caused the one cup to lose all clamping force. I had to make a warranty claim for replacement. After that, I sold the replacement locally.
These two things combined made me sell them off. I *did* think that they imaged better than the FSP and had better treble definition and extension.