Fosi Audio i5 Planar Magnetic Headphone

$999.00

Immersive Listening, Pure Original Sound 

Crafted with an ultra-thin diaphragm using nano-level technology, an invisible high-powered magnetic system, and precision acoustic design, the i5 delivers high resolution and low distortion for a truly lifelike listening experience.

  • Nano diaphragm, studio-grade sound
  • 97mm driver, extreme detail resolution
  • Walnut build, premium craftsmanship
  • Open-back, expansive soundstage accuracy

Available On backorder

Fosi Audio i5 Planar Magnetic Headphone
Fosi Audio i5 Planar Magnetic Headphone
$999.00

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Democratizing Planar Sound

The i5 was born from our mission to make planar magnetic headphones more accessible—without compromising on sound quality, comfort, or design. Over a year of in-house development and acoustic tuning led to a headphone that delivers exceptional clarity, low distortion, and lifelike detail.

  • Transducer Type: Planar Magnetic Transducer
  • Maximum SPL: ≥ 120 dBSPL
  • Frequency Response: 10 – 50,000 Hz; THD: < 1% @100dBSPL
  • Sensitivity: 98 dB/mW @1kHz; Nominal Impedance: 28 Ω
  • Recommended Power: ≥ 500 mW

Ultra-Large Diaphragm – 97mm Ultra-Large Diaphragm

The ultra-thin diaphragm, crafted with nano-level precision, delivers faster response, enhanced detail, and a more natural, clear, and layered sound.

Ergonomic Design 
Long-Lasting Comfort 

Designed to follow the natural contours of the head, the i5 ensures a secure yet gentle fit. Even during extended listening sessions, it remains comfortable and pressure-free, letting you enjoy your music without distraction.

Dual-Axis Ear Cup Arms

Allows seamless vertical and horizontal rotation for a custom fit to different head shapes, enhancing both comfort and stability.

Stepless Silicone Adjustment

The headband features a silicone adjustment slider with a damped, smooth feel, enabling easy and precise positioning based on personal preference.

What‘s in the box?

  • i5 Headphone
  • 6.35mm Adaptor
  • 3.5mm Cable
  • User Manual

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