FiiO
FiiO FD3 Pro
The FiiO FD3 PRO are semi-open in-ear monitors designed for exceptional audio fidelity. Featuring a 12mm dynamic driver with a Diamond-Like Carbon (DLC) diaphragm and a flagship-grade acoustic prism, they deliver powerful sound with minimal distortion and excellent transient response. The semi-open acoustic design promotes a natural soundstage and balanced air pressure for a comfortable, less fatiguing listening experience. Crafted from a lightweight aluminum-magnesium alloy with a 2.5D glass faceplate, these monitors offer both durability and aesthetic appeal. The FD3 PRO includes an exclusive 8-stranded, 152-core silver-plated copper cable with interchangeable 2.5mm, 3.5mm, and 4.4mm plugs, allowing for versatile connectivity.
$318.99
Owner Satisfaction
4.5
/ 5
Category Rank
1275
/ 5783
#1275 in Headphones
Price vs Category Average
-46%
Below average
Color
Black
/ Black
Who it's for
- Engaging Sound Profile
- Premium Build and Comfort
- Sound Customization Options
Who should skip it
- Potential for Fit Variability
- Limited Passive Noise Isolation
- Sound Signature May Not Suit All
Key Specs
Color
Black
Wearing Style
In-Ear
Earpiece Connection
Wired
Number of Drivers
1
Driver Type
Dynamic Driver
Driver Size
12 mm
Weight
7g
Impedance
32 Ω
Features
- Flagship-level 12mm DLC dynamic driver for powerful and clear sound.
- Front acoustic prism enhances sound diffusion and eliminates high-frequency standing waves.
- Semi-open acoustic design provides a natural soundstage and balanced air pressure.
- Interchangeable sound tubes (large and small inner diameters) for customizable sound profiles.
- Lightweight aluminum-magnesium alloy body with a 2.5D film coating glass faceplate.
- Exclusive 8-stranded, 152-core silver-plated copper cable with interchangeable 2.5mm, 3.5mm, and 4.4mm plugs.
- Hi-Res Audio certified for detailed and immersive sound reproduction.
- Includes a comprehensive set of accessories for a complete listening experience.
What customers say
Customers consistently praise the FiiO FD3 PRO for its exceptional sound quality, particularly its engaging bass and clear, detailed presentation across various music genres. Many highlight the premium build quality, noting the durable aluminum alloy shells and the generous array of included accessories. This combination of impressive audio performance and robust construction, coupled with thoughtful extras, positions the FD3 PRO as a remarkable value proposition within its category, exceeding expectations for its price.
Know before you buy
The semi-open design helps relieve internal air pressure, which reduces listening fatigue during long sessions. It also contributes to a more natural, expansive soundstage compared to traditional fully sealed in-ear monitors.
The FD3 PRO comes with two sets of sound tubes that allow you to fine-tune the frequency response. The tubes with a larger inner diameter generally emphasize a more detailed, analytical treble, while the smaller diameter tubes provide a slightly warmer, more balanced sound profile.
The FD3 PRO includes an 8-stranded silver-plated copper cable with a modular plug system. You can easily swap between 2.5mm, 3.5mm, and 4.4mm connectors, making it compatible with most standard headphone jacks, balanced outputs, and high-resolution digital audio players.
Yes, the FD3 PRO is quite lightweight at only 7 grams per earpiece, thanks to the aluminum-magnesium alloy construction. The semi-open design also prevents the 'pressure buildup' sensation often felt with standard in-ear monitors, making them well-suited for extended listening.
With an impedance of 32 Ω and a sensitivity of 111 dB, the FD3 PRO is relatively easy to drive. You can get excellent performance directly from a smartphone or laptop, though using a dedicated DAC or amplifier can help further refine the clarity and dynamics.
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