Fosi Audio i5 / ZH3 HiFi High-End Headphone Set

High-End Over-Ear Planar Headphones With 97 mm Driver!
  • 97 mm planar magnetic driver for accurate sound reproduction
  • Open-back design with a wide soundstage
  • Impedance: 28 O, Sensitivity: 98 dB/mW
  • Frequency response: 10 Hz – 50 kHz for fine detail
  • Premium build with walnut accents & aluminum frame
  • Ideal for audiophile applications
  • Value bundle including headphone amplifier
Bundle
-5% 759
instead of individually799,80
All prices include VAT
Ready for shipping

Finance from 20,10 € per month
Standard Shipping
free
Delivery time 1 - 2 working days
Priority Shipping
+ 0,99
Shipping on 20.05.2026
Express Shipping
+ 5,90
Delivery on Thursday, 21.05.2026, if you order within  16 Hrs. 46 Min. 
Shipping and Delivery
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Experience Music With Ultimate Precision!

The Fosi Audio i5 open-back planar magnetic headphones deliver a technically outstanding performance thanks to an enormous 97 mm planar magnetic diaphragm, an open design for an expansive soundstage and premium materials like walnut and a CNC aluminum housing. They provide clear detail retrieval, dynamic transient response and an audiophile presentation—perfect for discerning music lovers.

Sound Experience

The massive 97 mm driver with an ultra-thin 2 µm diaphragm ensures minimal distortion, fast response and high resolution. Thanks to the open design the soundstage feels airy and instruments are clearly separated—resulting in an immersive listening experience.

Technology & Features

With an impedance of 28 O and a sensitivity of 98 dB/mW the i5 can be driven by portable devices; however, for optimal performance a more powerful amplification (= 500 mW) is recommended to unlock its full potential. The 10 Hz to 50 kHz frequency range gives you a broad reproduction spectrum so even subtle nuances in your recordings become audible.

Design & Comfort

The housing combines elegant walnut with sturdy aluminum—creating a premium look with audiophile appeal. The padding and headband design ensure comfortable wear during long sessions, although the weight of around 550 g should be taken into account.

Headphone Amplifier

The Fosi Audio ZH3 HiFi DAC headphone amplifier is a powerful desktop DAC and headphone amp for high-quality audio setups at a PC, laptop or HiFi system. Equipped with a modern digital-to-analog converter, it delivers precise, detailed playback with high dynamics and very low noise. With multiple inputs like USB, optical or coaxial the amplifier integrates flexibly into different systems, while the robust headphone section reliably drives demanding HiFi headphones. The compact metal housing, quality build and intuitive operation make the Fosi Audio ZH3 a versatile solution for audiophile music lovers, gamers and content creators.

Features

Headphones

  • Driver type: planar magnetic driver, diameter 97 mm
  • Diaphragm thickness: approx. 2 µm (ultra-thin)
  • Impedance: 28 Ω
  • Sensitivity: 98 dB/mW @ 1 kHz
  • Frequency range: 10 Hz - 50 kHz
  • THD (distortion): <1% @ 100 dB SPL
  • Open-back design ("Open-Back") for spacious imaging
  • Recommended amplifier power: ≥ 500 mW
  • Weight: approx. 550 g (without cable)
  • Connection cable: 3.5 mm TRS + 6.35 mm adapter included
  • Material: walnut finish, aluminum frame, premium padding

Headphone Amplifier

  • High-quality digital-to-analog converter for detailed sound
  • Powerful headphone amplifier with clear dynamics
  • Supports hi-res audio formats (up to 32-bit/768 kHz, DSD512)
  • Two headphone outputs: 4.4 mm balanced & 6.35 mm standard
  • Compatible with PC, Mac, TV, CD player and more
  • Analog and digital inputs (USB, optical, coaxial, phono)
  • Outputs for active speakers or power amplifier (XLR & phono)
  • Robust aluminum housing with refined finish
  • Includes remote control and power adapter

Scope of delivery

  • 1 x Fosi Audio i5 Planar Magnetic HiFi Headphones
  • 1 x Headphone amplifier

Specification

  • Product number 00116376
  • Colour Schwarz

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Financing

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You can finance your order in convenient monthly installments from a value of €100.00.
Your contact persons

The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.

Tuesday 09:30 - 18:00
Wednesday 09:30 - 18:00
Thursday 09:30 - 18:00
Friday 09:30 - 18:00
Saturday 09:30 - 13:30
Monday Closed