Product: OASEAR Alioth

Driver Config: 1DD + 4BA + 4 Micro Planar Drivers

Sound Signature: Clean, Energetic, Mild V-Shape

Tonality: Transparent, Fast, Crisp, Airy

Highlights: A sophisticated nine-driver hybrid configuration combining a beryllium-coated dynamic driver, balanced armatures, and micro planar drivers. Distinctive handcrafted flowing-sand faceplates with elegant visual detailing. A clean and energetic sound characterized by responsive bass, excellent clarity, and lively upper-frequency extension.

Suited Genres: Pop, Rock, Metal, Electronic, Jazz Fusion, and Instrumental.

Impressions:

Alioth brings a refreshing sense of energy and transparency to the listening experience. Despite its noticeably elevated low frequencies, the overall presentation feels surprisingly clean and agile rather than thick or overly warm. The bass provides satisfying punch and presence, giving drums and electronic instruments a solid foundation without defining the entire sound around warmth or weight. Its lively, responsive character helps maintain a good sense of rhythm and momentum.

The midrange follows a similarly clean approach, with a well-defined presentation that favors clarity and articulation over excessive richness. Vocals and instruments remain distinct, while the upper-midrange energy adds a pleasing sense of immediacy and definition. Alioth sounds expressive and engaging without relying on an overly dense or romantic tonal character.

The upper frequencies are particularly interesting. There is plenty of detail, sparkle, and openness, yet the tuning avoids maintaining excessive energy throughout the entire lower-treble region. This creates a presentation that feels crisp and revealing without sounding uniformly sharp. The four micro planar drivers also make Alioth's hybrid architecture particularly intriguing, complementing its emphasis on upper-frequency detail and extension.

What makes Alioth appealing is the balance between its energetic personality and overall clarity. It offers a sense of speed and liveliness while retaining enough low-frequency substance to keep music engaging. Rather than pursuing a particularly warm or relaxed sound, Alioth is better suited to listeners who enjoy a transparent, responsive, and vivid Hi-Fi presentation.

FR Measurement

Engineering Insight: Energy Without Excess Weight

One interesting aspect of Alioth's tuning is how it combines a generous bass lift with a relatively restrained lower-midrange. This helps explain why the sound can deliver satisfying low-end impact without feeling excessively heavy or congested.

The upper frequencies follow a similarly selective approach. A lively upper-midrange region is followed by a reduction in lower-treble energy before the upper treble becomes more prominent again. This balance can preserve clarity and sparkle while avoiding a constantly aggressive treble presentation. The result is a sound that feels energetic and open, with detail that comes through clearly rather than relying on sheer brightness.