Both headphones share a strong acoustic foundation — ANC, passive noise reduction, and neodymium magnets are present on each — but the frequency response data reveals a meaningful gap in technical ambition. The Focal Bathys MG covers 10 Hz–22,000 Hz, a range that comfortably spans human hearing. The Sony WH-1000XM6 extends dramatically further, from 4 Hz to 40,000 Hz, reaching into sub-bass rumble territory below audible thresholds and well into high-resolution audio's upper range. In practice, that ultra-low extension adds physical weight and presence to bass-heavy content, while the upper ceiling matters for hi-res formats like FLAC or LDAC streams.
The driver story is more nuanced. Focal uses a larger 40 mm driver against Sony's 30 mm, and Focal's lower 32 Ohm impedance means the headphone is easier to drive to high volumes from a smartphone or portable source without amplification. Sony's 48 Ohm impedance is not demanding by audiophile standards, but it does require a slightly more capable source to reach its full potential. Neither figure is a dealbreaker, but the Bathys MG is marginally more forgiving of weak source output.
The decisive differentiator in this group is Sony's support for spatial audio, a feature absent on the Bathys MG. For users who consume Dolby Atmos music, immersive gaming audio, or spatial video content, this is a significant functional advantage. Taken together, the Sony WH-1000XM6 holds the edge in sound quality specs — its wider frequency range and spatial audio support offer greater technical versatility, even if the Bathys MG's larger driver and lower impedance make it the more source-friendly option.