NH1 vs HD560S (Patreon)

Allegedly Sennheiser made some adjustments to the HD560S for units produced after 2022 which also had an impact on sound with reduced treble and upper mids, those units may sound a bit smoother than early units like mine here, which have a bit of a metallic character. My HD560S is an early unit I already owned for some years. I had to swap it 2 times to get a unit with decent channel matching, the previous units I had all suffered some stronger imbalance.