Renowned German audio pioneer grell audio has unveiled its latest development, the OAE2 – an open high-end headphone that is set to fundamentally change the listening experience. Developed under the direction of Axel Grell, one of the most renowned engineers in the industry, the OAE2 combines technical precision with emotional depth of sound and relies on innovative acoustic solutions for uncompromising listening pleasure.
- Front sound field modulation (FSFM) for natural sound
- Open design with interchangeable components
- Sustainable materials and improved wearing comfort
- Price: €499 (RRP), available from December
Sound innovation through FSFM technology
The biggest innovation of the OAE2 is the so-called Front Sound Field Modulation (FSFM). This technology ensures that sound waves do not hit the ear directly from the side, but at a natural angle from the front. This creates a particularly authentic spatial impression in which the sound image is not created “in the head” but in front of the listener – similar to a live experience. Highs are finely resolved, mids remain clear and the bass is powerful without being artificially overemphasized.

Compared to its predecessor, the OAE1, the frequency response has been precisely tuned to achieve an even better balance between richness of detail and naturalness. The OAE2 also shows its innovative side in terms of high-frequency reproduction: the interaction between the sound and the ear cup creates a realistic stage image that conventional headphones can hardly achieve. As Axel Grell emphasizes, the design aims for the headphones to adapt to the listener – not the other way around.
Comfort, design and sustainability
In addition to sonic excellence, grell audio attaches great importance to wearing comfort and durability. The headband and padding made of breathable velour and memory foam have been redesigned to remain comfortable even during long listening sessions. The construction is based on an open stainless steel mesh, which is not only stable but also aesthetically pleasing.
The modular design is particularly noteworthy: all components can be replaced or repaired – a clear commitment to sustainability. grell also relies on plastic-free packaging and environmentally certified production facilities. The OAE2 therefore combines technological sophistication with responsible product design.

Visually, the model follows the elegant lines of the award-winning OAE1 Signature, which won the iF DESIGN AWARD in 2025. The harmonious combination of functionality and aesthetics is evident in every detail – from the delicate stainless steel frame to the finely contoured ear cups.
Technical data at a glance
| Characteristic | Value |
|---|---|
| Frequency response | 12 – 34,000 Hz (-3 dB) |
| Impedance | 38 Ω |
| Sound pressure level | 100 dB at 1 kHz |
| Maximum input power | 500 mW |
| Distortion factor | 0.05% at 1 kHz |
| Weight | 378 g (without cable) |
The scope of delivery includes two high-quality, silver-plated OFC cables – one with a 3.5 mm plug (incl. 6.3 mm adapter) and one with a 4.4 mm plug for balanced operation, packed in a robust case.
Conclusion
With the OAE2, grell audio presents headphones that redraw the line between precision and emotion. The combination of FSFM technology, sustainable design and exceptional sound fidelity makes it a highlight in the high-end segment. The OAE2 will be available from specialist retailers from December at a price of 499 euros. An offer that should delight audiophile listeners and professional users alike.

