Uploaded May 2026 | Updated September 2026, 2 weeks ago

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Get 10% off the Grell OAE2 headphones: upf.ai/4cznel7q
Code: PASSIONFORSOUND10

Watch my full review of the OAE2 -
grellaudio.com/products/oae2

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In this video, I sit down for an in-depth interview with industry legend Axel Grell of Grell Audio to discuss his latest masterpiece: the Grell OAE2. Having spearheaded some of the most iconic designs at Sennheiser including the HD650 and HD800, Axel brings a wealth of engineering expertise to this new open-back headphone.

We dive deep into his unique headphone design philosophy, specifically the Front-sided Sound Field Modulation (FSFM). Axel explains how positioning the 40mm bio-cellulose dynamic drivers at a forward-facing angle minimizes the "in-head" effect, creating a soundstage that mimics high-end loudspeakers. We explore the technical nuances of tonal balance, imaging, and why the OAE2 uses a precision stainless-steel mesh for superior acoustic damping. Whether you're an audiophile chasing the ultimate high-fidelity experience or a music lover curious about the future of German engineering, this conversation reveals the meticulous detail required to achieve true transparency and natural sound.

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