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Fosi i5 Open-Back Planar Magnetic Headphones

Fosi i5 Open-Back Planar Magnetic Headphones

by Fosi Audio
₹ 54,999 - ₹ 54,999
₹ 54,999
₹ 54,999
₹ 54,999 - ₹ 54,999
₹ 54,999

Taxes & Shipping Included

Open-Back Planar Magnetic Headphones for HiFi Audiophiles. 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.

Fosi i5 open-back planar magnetic headphones deliver studio-grade audio through a 97mm ultra-large diaphragm and precision magnetic control. The ergonomic design features a memory-steel headband with breathable ear pads for extended comfort. Handcrafted walnut wood chambers and CNC-milled aluminum construction provide refined craftsmanship, while the acoustically transparent open-back design creates an expansive soundstage with exceptional clarity and minimal distortion.

Features 
  • Immersive Listening, Pure Original Sound Experience studio-grade audio fidelity with nano-thin diaphragm and stealth magnets. Precision acoustics deliver high-resolution, low-distortion sound for live-performance realism
  • 97mm Ultra-Large Diaphragm Industry-leading 97mm driver at 2μm thickness reveals microscopic details. Magnetron-sputtered silver alloy coating enhances clarity while ensuring long-term sonic consistency and durability
  • Ergonomic Design, Long-Lasting Comfort Memory-steel headband with multi-axis pivoting earcups adapts instantly. Silicone sliders enable micro-adjustments. Breathable protein leather ear pads eliminate fatigue during extended sessions
  • Refined Craftsmanship Handcrafted walnut wood chambers paired with CNC-milled aluminum frame. Genuine sheepskin headband and signature S-design accents exude understated luxury and timeless sophistication
  • Precision Magnetic Control 44 N50 neodymium magnets ensure razor-sharp transients. Acoustically transparent open-back grille minimizes resonance for expansive, holographic soundstage with studio-grade accuracy
Specifications
  • 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
Includes
  • 1 x i5 Headphone 
  • 1 x 6.35mm Adapter
  • 1 x 3.5mm Cable
  • 1 x User Manual 
Support
  • Manual
About

Fosi Audio, established in Shenzhen in 2017 by Ryan Huang, has emerged as a pioneering force in democratizing high-fidelity sound. Guided by four core tenets—Foresight, Openness, Sincerity, and Innovation—the brand has cultivated a distinguished presence across 150+ nations. Renowned for exceptional sonic value and community-driven engineering, Fosi integrates premium components from industry leaders like Texas Instruments. Their philosophy transcends conventional audio retail, offering both refined finished products and bespoke DIY solutions for the discerning enthusiast seeking uncompromised quality without premium pricing.

Description

Open-Back Planar Magnetic Headphones for HiFi Audiophiles. 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.

Fosi i5 open-back planar magnetic headphones deliver studio-grade audio through a 97mm ultra-large diaphragm and precision magnetic control. The ergonomic design features a memory-steel headband with breathable ear pads for extended comfort. Handcrafted walnut wood chambers and CNC-milled aluminum construction provide refined craftsmanship, while the acoustically transparent open-back design creates an expansive soundstage with exceptional clarity and minimal distortion.

Features 
  • Immersive Listening, Pure Original Sound Experience studio-grade audio fidelity with nano-thin diaphragm and stealth magnets. Precision acoustics deliver high-resolution, low-distortion sound for live-performance realism
  • 97mm Ultra-Large Diaphragm Industry-leading 97mm driver at 2μm thickness reveals microscopic details. Magnetron-sputtered silver alloy coating enhances clarity while ensuring long-term sonic consistency and durability
  • Ergonomic Design, Long-Lasting Comfort Memory-steel headband with multi-axis pivoting earcups adapts instantly. Silicone sliders enable micro-adjustments. Breathable protein leather ear pads eliminate fatigue during extended sessions
  • Refined Craftsmanship Handcrafted walnut wood chambers paired with CNC-milled aluminum frame. Genuine sheepskin headband and signature S-design accents exude understated luxury and timeless sophistication
  • Precision Magnetic Control 44 N50 neodymium magnets ensure razor-sharp transients. Acoustically transparent open-back grille minimizes resonance for expansive, holographic soundstage with studio-grade accuracy
Specifications
  • 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
Includes
  • 1 x i5 Headphone 
  • 1 x 6.35mm Adapter
  • 1 x 3.5mm Cable
  • 1 x User Manual 
Support
  • Manual
About

Fosi Audio, established in Shenzhen in 2017 by Ryan Huang, has emerged as a pioneering force in democratizing high-fidelity sound. Guided by four core tenets—Foresight, Openness, Sincerity, and Innovation—the brand has cultivated a distinguished presence across 150+ nations. Renowned for exceptional sonic value and community-driven engineering, Fosi integrates premium components from industry leaders like Texas Instruments. Their philosophy transcends conventional audio retail, offering both refined finished products and bespoke DIY solutions for the discerning enthusiast seeking uncompromised quality without premium pricing.