Meze Audio - 105 AER Open Back Headphones - Black

The HD 600 is the audio purist’s choice for reference playback. An instrument of Sennheiser’s passion for perfect sound, it is globally recognised as the standard for analytical high-fidelity listening - even 20-plus years after its release. The foundation of the extraordinarily clear sound of the HD 600 is its’ open acoustic design and the revolutionary transducer, which has been computer-optimized to reduce partial vibrations, which are responsible for a multitude of distortions.

Since their release in 2015 the 99 Classics have undeniably left a big impact on the headphone cultural landscape. In this sense they have become iconic a symbol. The second generation features a number of meaningful enhancements while preserving the spirit of the original.FeaturesNeutral Balanced Engaging bass with Clear Mids and Highs40 mm Dynamic DriversBuilt Using Premium Materials (Walnut Wood Spring Steel Cast Zinc)Detachable Memory Foam Ear PadsDual-Twisted Kevlar-Wrapped OFC CableCustom 3.5 mm to USB-C Adapter with Integrated DAC/AMPWorld-Class Ergonomic Design for All-Day ComfortSame Iconic SilhouetteEverything that made the original headphone an instant classic is still present – the magnetic and inviting sound the seamless comfort the use of premium materials the timeless design aesthetic – it’s all here. However upon closer inspection and audition the enhancements become more apparent.Tuning DirectionThe 2nd Gen 99 Classics moves the signature closer to a balanced neutral target. Bass remains engaging yet slightly more restrained allowing midrange and treble details to emerge with greater clarity. The result is a more versatile headphone that retains the musical warmth of the original while offering improved overall balance and detail retrieval.Driver MatchingA refined matching process using a mixed cosine function combined with level-adjustment algorithms reduces inter-driver variance in the mid and high frequencies. The result is improved stereo image stability and a more consistent listening experience across pairs.Increased Ear Cup VolumeThe internal cup volume has been increased. A larger volume shifts cavity resonances downward and reduces standing-wave interactions enhancing control in the low-frequency region and aligning with the new tuning goals.A

Engineered for an immersive emotional connection, these open-back over-ear headphones deliver vivid, lifelike sound with effortless flow. A precision-tuned 50 mm driver with a dual-composite diaphragm blends speed, control, and dynamic range for exceptional clarity, precise imaging, and rich, natural vocals. The open acoustic design adds spaciousness and depth while remaining easy to power from portable devices or home systems. Lightweight and comfortable for extended listening, they feature sustainably sourced walnut wood, durable metal accents, vegan leather, and plush velour ear pads. Fully serviceable and built to last, they embody a thoughtful balance of performance, comfort, and longevity.