Grell Audio OAE2 Open-Back, Around-Ear Audiophile Headphones

OAE2 Open-Back, Around-Ear Audiophile Headphones, by Grell Audio.

Representing a fundamental shift in headphone design - more than sound – a presence you can feel!

High-end headphones have made big strides over the past decade, yet many still struggle to deliver the natural presence of loudspeakers. The physical impact of low frequencies and the smoothness of a studio-grade treble response are usually missing.

The Grell OAE2 was created to change that. It offers bass that is not only heard but physically felt, paired with a treble response that avoids artificial peaks. The result is a listening experience that feels less like headphone playback and more like a direct connection to the music.

Open-back, redefined by science. This performance begins with a carefully selected bio-cellulose driver, engineered for low distortion and fast response. A novel damping system lowers the resonance frequency so that the response extends into the sub bass, producing a bass foundation unmatched by most open headphones.

At the other end of the spectrum, a German-made stainless steel mesh and front-mounted drivers enhance interaction with the outer ear, opening up the soundstage for an airy, coherent presentation. These design choices are backed by research with the Institute for Communications Technology at Leibniz University Hanover, where the effect of sound incidence on pinna anatomy is studied to refine accuracy across listeners.

The OAE2 is as practical as it is ambitious. Plush, acoustically transparent ear cushions allow long sessions without fatigue.

Metal injection-moulded parts ensure strength under heavy use. And its modular architecture means every component can be replaced, extending the headphone’s life into decades.

Where most manufacturers try to mask limitations with boosted treble, the OAE2 takes a different path. It embraces stronger bass response, closer to what you experience in real environments, while keeping the upper range honest and natural. The result is a balance that experienced listeners will recognise as closer to reference loudspeakers: detailed, accurate, and free from unnecessary colouration.

The team behind OAE2 carries decades of experience shaping iconic models: from the Sennheiser HD 560S, HD 650 and the HD 800 and HE 1, Neumann NDH 30 and Heavis H1H, as well dozens of other successful headphone models. With OAE2, that legacy continues in a design that combines technical innovation with a delightful user experience.

Features

• Natural high-frequency perception through Front-Sided Sound Field Modulation (FSFM)
• Powerful and precise bass reproduction
• Carefully balanced mids
• Accurate soundstage
• Wideband sound transducer with bio-cellulose membrane
• Precision-manufactured stainless steel damping fabric from Germany
• Innovative damping concept using carefully selected materials
• Modular design for easy replacement of all parts and long service life
• Fully balanced cable concept

Specifications

• Frequency Response: 12 - 34,000 Hz (-3 dB), 6 - 46,000 Hz (-10 dB)
• Transducer Principle: Dynamic
• Ear Coupling: Circumaural
• Sound Characteristics: Front-oriented loudness diffuse-field equalisation
• Hearing Curve Adaptation: sound field-pinna interaction
• Nominal Impedance: 38 Ω
• Sound Pressure Level: 100 dB at 1 kHz, 1 VRMS
• Max. Long-Term Input Power: 500 mW (according to IEC 60268-7)
• Distortion Factor: 0.05 % at 1 kHz, 100 dB
• Weight (w/o Cable): 378 g
• Headband Clamping Force: 2.5 N

Included

• 1 x OAE2 Headphones
• 2 x 1.8m Silver-Plated OFC Cables (1 x 3.5mm Unbalanced / 1 x 4.4mm TRRS Balanced)
• 1 x 3.5mm to 6.3mm Screw Adaptor
• 1 x Documentation

More Information

• OAE2 Headphones, by Grell Audio