Fosi Audio i5
€549.00*
No longer available
Product number:
HL02670
Product information "Fosi Audio i5"
Planar magnetic headphones
- 97 mm ultra-large diaphragm
- Luxurious walnut wood frame
- CNC-machined aluminum frame
- Detachable cable
- Genuine suede headband
The i5 was born out of Fosi Audio's mission to make planar magnetic headphones more accessible—without compromising on sound quality, comfort, or design. Fosi Audio spent over a year working internally on development and acoustic tuning to create headphones that deliver exceptional clarity, low distortion, and lifelike detail. Immersive listening experience Pure, original sound Designed with an ultra-thin nanotechnology diaphragm, an invisible, powerful magnet system, and a precise acoustic design, the i5 delivers high resolution and low distortion for a truly lifelike listening experience.
97mm Ultra-large diaphragm
The ultra-thin diaphragm, manufactured with nano-precision, delivers faster response, improved detail, and a more natural, clear, and layered sound.
Ergonomic design - Long-lasting comfort
The i5 is designed to fit the natural contours of the head, ensuring a secure yet gentle fit. It remains comfortable and pressure-free even during longer listening sessions, so you can enjoy your music without distraction.
Dual-axis ear cup arms
Enable seamless vertical and horizontal rotation for individual adjustment to different head shapes, improving both comfort and stability.
Stepless silicone adjustment
The headband features a silicone adjustment slider with a dampened, soft feel that allows for easy and precise positioning according to personal preferences.
Robust memory metal headband
The headband is made of high-strength memory metal that retains its shape even after prolonged wear. It is lightweight and flexible, reducing pressure and increasing comfort.
Breathable, skin-friendly ear pads
The ear pads are made of perforated leather and breathable fabric to stay cool and soft. The memory foam inside ensures all-day comfort without overheating.
Refined craftsmanship - where aesthetics meet quality
A sophisticated fusion of high-quality materials and elegant design creates a look that exudes sophistication, texture, and distinctive character.
Sputter coating
Using advanced targeted sputter technology, a highly conductive silver-metal voice coil with a thickness of only 1.3 μm is precisely applied to the diaphragm. This process significantly improves sound refinement while ensuring durability, so that the excellent audio performance remains consistently stable over time.
Symmetrically arranged high-strength magnet matrix
Each driver unit features 22 symmetrically arranged N50 grade neodymium magnets that ensure precise and stable diaphragm vibrations. This design enables accurate and fast dynamic response, effectively reducing non-linear distortion and producing a purer, more natural sound that faithfully reproduces the essence of the music.
Rigid, highly transparent acoustic grille
The highly transparent, rigid grille structure on the rear ensures stable air pressure damping and linear feedback. It smooths out frequency peaks and reduces non-linearities, creating an open, airy sound space with extremely low acoustic resistance.
Technical data
Device type – Open wired headphones
Transducer type – Planar magnetic drive
Maximum sound pressure level – ≥120 dB
SPL Frequency response – 10 Hz – 50 kHz
THD – < 1% at 100 dB
SPL Sensitivity – 98 dB/mW at 1 kHz
Nominal impedance: 28 Ω
Recommended power: ≥ 500 mW
Recommended minimum power: 100 mW
Weight: 550 g
Dimensions: 16 cm (6.30 inches) × 24 cm (9.45 inches) × 11.5 cm (4.53 inches)
What`s in the box
i5 headphones
Connection cable with 3.5 mm plug
Adapter 3.5 mm to 6.3 mm
User manual
Informationen zum Hersteller
Planar magnetic headphones
- 97 mm ultra-large diaphragm
- Luxurious walnut wood frame
- CNC-machined aluminum frame
- Detachable cable
- Genuine suede headband
The i5 was born out of Fosi Audio's mission to make planar magnetic headphones more accessible—without compromising on sound quality, comfort, or design. Fosi Audio spent over a year working internally on development and acoustic tuning to create headphones that deliver exceptional clarity, low distortion, and lifelike detail. Immersive listening experience Pure, original sound Designed with an ultra-thin nanotechnology diaphragm, an invisible, powerful magnet system, and a precise acoustic design, the i5 delivers high resolution and low distortion for a truly lifelike listening experience.
97mm Ultra-large diaphragm
The ultra-thin diaphragm, manufactured with nano-precision, delivers faster response, improved detail, and a more natural, clear, and layered sound.
Ergonomic design - Long-lasting comfort
The i5 is designed to fit the natural contours of the head, ensuring a secure yet gentle fit. It remains comfortable and pressure-free even during longer listening sessions, so you can enjoy your music without distraction.
Dual-axis ear cup arms
Enable seamless vertical and horizontal rotation for individual adjustment to different head shapes, improving both comfort and stability.
Stepless silicone adjustment
The headband features a silicone adjustment slider with a dampened, soft feel that allows for easy and precise positioning according to personal preferences.
Robust memory metal headband
The headband is made of high-strength memory metal that retains its shape even after prolonged wear. It is lightweight and flexible, reducing pressure and increasing comfort.
Breathable, skin-friendly ear pads
The ear pads are made of perforated leather and breathable fabric to stay cool and soft. The memory foam inside ensures all-day comfort without overheating.
Refined craftsmanship - where aesthetics meet quality
A sophisticated fusion of high-quality materials and elegant design creates a look that exudes sophistication, texture, and distinctive character.
Sputter coating
Using advanced targeted sputter technology, a highly conductive silver-metal voice coil with a thickness of only 1.3 μm is precisely applied to the diaphragm. This process significantly improves sound refinement while ensuring durability, so that the excellent audio performance remains consistently stable over time.
Symmetrically arranged high-strength magnet matrix
Each driver unit features 22 symmetrically arranged N50 grade neodymium magnets that ensure precise and stable diaphragm vibrations. This design enables accurate and fast dynamic response, effectively reducing non-linear distortion and producing a purer, more natural sound that faithfully reproduces the essence of the music.
Rigid, highly transparent acoustic grille
The highly transparent, rigid grille structure on the rear ensures stable air pressure damping and linear feedback. It smooths out frequency peaks and reduces non-linearities, creating an open, airy sound space with extremely low acoustic resistance.
Technical data
Device type – Open wired headphones
Transducer type – Planar magnetic drive
Maximum sound pressure level – ≥120 dB
SPL Frequency response – 10 Hz – 50 kHz
THD – < 1% at 100 dB
SPL Sensitivity – 98 dB/mW at 1 kHz
Nominal impedance: 28 Ω
Recommended power: ≥ 500 mW
Recommended minimum power: 100 mW
Weight: 550 g
Dimensions: 16 cm (6.30 inches) × 24 cm (9.45 inches) × 11.5 cm (4.53 inches)
What`s in the box
i5 headphones
Connection cable with 3.5 mm plug
Adapter 3.5 mm to 6.3 mm
User manual
EU-Verantwortlicher
NT Global Distribution GmbH
Buntentorsdeich 10
28201 Bremen
Deutschland
www.nt-global.de
info@nt-global.com