One Dot Audio aeos H400

Aeos is designed to evoke the quiet clarity of dawn—where air feels lighter, light feels softer, and everything carries a sense of new beginning. It captures the transparency and freshness of early morning, as the first rays of sunlight break through, illuminating the world with calm, crisp brilliance. Aeos is a new chapter of ODA new series.

Precision 5-axis CNC machining with an integrated, single-piece nozzle—seamless form, superior acoustic alignment.

Introducing our all-new Vibrant Wood Design—crafted from carefully selected high-density wood to preserve the rich, natural sound that only real wood can deliver.

Engineered with a PCBA-based crossover circuit for precise frequency splitting—delivering tighter channel matching and consistently refined sound across every unit.

Signature wood-grain aesthetics—first making their debut on custom cable Solvane. Executed with exacting craftsmanship, this intricate design pushes the limits of precision and artistry.

Technical specification

Drivers: 4 drivers each side: 1 DD,and 3 BA（ Mid: *1, High&Ultra high: *2）
Sensitivity: 108dB SPL/mW
Recommend music type: Pop, classical, vocals
Impedance: 15Ω
Frequency response: 20-30KHz
Noise isolation: 26dB
Earphone type: In-ear
Monitor plug: 4.4mm connector
Earphone end plug: 2Pin(0.78Pin)
Cable: 2-strand oxygen-free cooper custom high end cable
Shell:  Wood
Faceplate: Wood and resin, plus gold leaf artwork