At the foundation, the Moondrop Moca and Technics EAH-AZ100 share several strong similarities: both offer active noise cancellation, passive noise reduction, and a 10 mm driver unit — meaning neither has a raw hardware size advantage. The low-end frequency floor is identical at 20 Hz for both, covering the full range of human hearing on the bass end.
Where they diverge is at the top of the frequency range. The Moca reaches up to 20,000 Hz — the standard ceiling of human hearing — while the EAH-AZ100 extends to 40,000 Hz, well into the high-resolution audio territory. While most listeners cannot consciously perceive frequencies above 20 kHz, a wider driver response can contribute to a cleaner, more natural reproduction of audible upper frequencies and is particularly relevant for hi-res audio formats. On top of that, the EAH-AZ100 adds spatial audio and Dolby Atmos support — features the Moca entirely lacks — which meaningfully expand the immersive listening experience for compatible content like movies, games, and spatial music mixes.
The Technics EAH-AZ100 holds a clear advantage in this category. Its extended high-frequency response, spatial audio support, and Dolby Atmos compatibility give it a broader and more versatile sound profile, especially for users who consume hi-res or immersive audio content. The Moca covers the basics competently, but the EAH-AZ100 offers a more feature-rich and technically ambitious sound experience based strictly on the provided specs.