FiiO
Fones de ouvido magnéticos planares abertos FiiO FT5 (caixa aberta)
Best open-back headphones for audiophiles seeking expansive, detailed sound.
Immerse yourself in exceptional audio fidelity with the FiiO FT5 Open-Back Planar Magnetic Headphones. Engineered for audiophiles, these headphones boast large 90mm planar magnetic drivers with an ultra-thin 6μm diaphragm and micron-plated aluminum-silver alloy coils for detailed sound and rich bass. The lightweight magnesium-aluminum alloy construction and open-back design ensure comfort and an expansive, natural soundstage. With high sensitivity and easy-to-power capabilities, the FT5 offers a premium listening experience suitable for various audio sources, enhanced by a 3-axis swiveling design and interchangeable audio plugs for ultimate usability.
$499.99
Owner Satisfaction
4.6
/ 5
Category Rank
443
/ 5783
#443 in Headphones
Price vs Category Average
-15%
Below average
Driver Type
90
/ mm Planar Magnetic
Who it's for
- Audiophiles seeking high-resolution clarity and fast transient response
- Listeners wanting planar performance without needing massive desktop amplifiers
- Budget-conscious buyers looking for premium build quality at reduced prices
Who should skip it
- Commuters needing noise isolation for public or shared spaces
- Users sensitive to heavy gear during extended listening sessions
- Minimalists avoiding the extra cost of dedicated amplification hardware
Performance breakdown
Soundstage Width
Open-back design creates an expansive, natural sense of acoustic space.
Transient Response
Ultra-thin diaphragm delivers lightning-fast precision for complex musical passages.
Driveability
High sensitivity makes these planar drivers surprisingly easy to power.
Build Integrity
Magnesium-aluminum alloy construction balances premium durability with structural refinement.
Ergonomic Comfort
Swiveling earcups provide a secure fit, though the weight remains noticeable.
Signal Fidelity
Silver-plated copper cabling ensures minimal signal loss from source to ear.
Key Specs
Driver Type
90mm Planar Magnetic
Diaphragm
6μm ultra-thin
Coils
Micron-plated aluminum-silver alloy
Impedance
38 Ohms
Sensitivity
105dB/mW
Frequency Response
7Hz-40kHz
Cable Material
392 wires of silver-plated monocrystalline copper (23AWG)
Maximum Power Input
2000mW
Features
- Large 90mm planar magnetic drivers
- Ultra-thin 6μm diaphragm for fast response
- Aluminum-silver alloy coils for superior conductivity
- Open-back design for expansive soundstage
- Lightweight magnesium-aluminum alloy construction
- 3-axis swiveling earcups for perfect fit
- High-purity silver-plated copper cable
- Premium materials and meticulous construction
What customers say
Reviewers consistently praise the FiiO FT5 for its exceptional comfort and outstanding value. The lightweight build ensures highly enjoyable extended listening sessions. Sound quality is balanced and engaging, effectively showcasing planar detail. A key strength is the headphone's scalability; users note significant sonic improvements when paired with dedicated amplification, unlocking its full potential beyond portable sources. This blend of superior comfort and high performance positions the FT5 as a celebrated entry point into serious planar audio, especially given its competitive price.
Know before you buy
The open-back design allows air to pass through the earcups, which prevents pressure buildup and creates a wider, more natural soundstage. While this provides an immersive, speaker-like experience, it also means sound will leak out and you will hear ambient noise from your surroundings.
With an impedance of 38 Ohms and a sensitivity of 105dB/mW, the FT5 is relatively efficient for a planar magnetic headphone. While you can drive them with a phone or laptop, using a dedicated DAC or amplifier will help you get the most out of their dynamic range and detail.
The FT5 weighs approximately 456 grams. While the magnesium-aluminum alloy construction keeps the weight manageable, they are substantial headphones; the 3-axis swiveling earcups help distribute that weight evenly for a more comfortable fit over time.
These drivers are designed for speed and precision. You can expect a highly detailed, fast response across the frequency spectrum, with tight, controlled bass and a clear, expansive presentation that is characteristic of high-end planar magnetic technology.
Because of the open-back design, these headphones offer no active or significant passive noise isolation. They are best suited for quiet, indoor environments where you can fully appreciate the soundstage without outside interference.
The FT5 comes with a high-purity, silver-plated monocrystalline copper cable. It features interchangeable audio plugs, allowing you to easily switch between different connection standards depending on your source equipment.
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