
The Fiio FF3 Portable Headphone Review is a must-read for anyone in the market for a high-quality, portable headphone. This review delves into the FF3's impressive sound quality, which is characterized by its clear and detailed highs, smooth and natural midrange, and deep and powerful bass.
The FF3's soundstage is also noteworthy, with a wide and immersive sound that makes you feel like you're right in the middle of the music. It's perfect for music lovers who want to experience their favorite tracks in a whole new way.
One of the standout features of the FF3 is its portability. Weighing in at just 14.5 grams, this headphone is incredibly lightweight and easy to take on the go. Whether you're commuting to work or hiking in the great outdoors, the FF3 is the perfect companion.
Design and Build
The FiiO FF3 earbuds exude a sense of premium quality, with polished and electroplated 316L stainless steel shells that look and feel nothing short of luxurious.
Their unique "drum" type design is both functional and visually appealing, with polished glass covers on the rear face that change appearance under different lighting conditions.
A long, thin stem hangs down from the housings, making it easier to handle the earbuds and also acting as strain relief for the fixed cable.
The cable itself is monocrystalline silver-plated copper, covered with a smooth TPU sheath that handles reasonably well and doesn't have any noticeable microphonics.
The earbuds are remarkably comfortable, feeling stable in the ears even without using the foam covers.
Noise isolation is next to nothing, but this is a big part of the reason earbuds can create such an expansive soundstage.
The FiiO FF3's design and build quality are truly impressive, making them a great choice for casual listening.
The earbuds are made from high-quality materials, with a solid and sturdy feel that inspires confidence.
The modular plug system at the end of the cable lets you easily switch between the 3.5mm and 4.4mm terminations, adding to the earbuds' versatility.
The FF3 earbuds are a great example of how good design and build quality can elevate the listening experience.
Sound Quality
The FiiO FF3 earbuds deliver a sound signature that's slightly warmer than neutral, with a full-bodied rich sound that's fairly balanced between the bass, mids, and treble.
The bass response is generous, with lows that are north of neutral, and most of the focus is on the mid-bass. However, there is plenty of sub-bass action too, especially if you push the earbuds deeper into your ears.
The midrange notes are slightly thick, resulting in a warm, rich sound with good articulation. But if you push the earbuds too deeply into your ears, the sound can become muddy.
The treble tuning is safe and inoffensive, with rounded and softened notes that are easy on the ears. However, this means there's not a great deal of precision in the top end.
The soundstage is pretty big, thanks to the full-bodied bass, and it's not isolated in your head like with most in-ear monitors. Instead, it's all around you and becomes a living, breathing part of your world.
Here are some specific examples of the soundstage:
* We are the world(3:00 onward): The soloist is upfront, while the choir is pushed further away to the background.Eine Kleine Nachtmusik - I. Allegro: You can hear the precise direction of each instrument in the string quartet throughout the piece.I vow to thee, my country: You can hear the boy choir standing in front of the men’s choir, or are they on the same flat plane?
The FF3's soundstage easily matches a closed-back headphone in terms of width, and its depth outperforms both closed-back and open-back headphones. However, it sometimes fails to convey a strong illusion of layering of instruments from closer to further away, due to its lack of tack-sharp rendering.
Non-Sound Aspects
The cable of the Fiio FF3 is not replaceable, but it's a bit of a mixed bag. The good news is that it's terminated with the interchangeable-plug system, which is convenient for switching between different devices.
You'll get a 3.5mm and a 4.4mm plug out of the box, but unfortunately, the 2.5mm plug is not included.
The cable itself is stiff, but it's not prone to kinking, and it's also microphonic-free, which is a plus.
Faceplate with tempered glass

The faceplate of FiiO FF3 is made of tempered glass, which provides high water resistance and a crystal-clear appearance, especially under light. This gives it a sleek and premium look.
This tempered glass faceplate is a standout feature that sets FiiO FF3 apart from other earbuds on the market. The manufacturer has also added some intricate designs to make it even more unique.
The tempered glass faceplate is not just aesthetically pleasing, but it also serves a practical purpose by protecting the internal components from damage.
Non-Sound Aspects
The cable of the FF3 is not replaceable, but it's terminated with an interchangeable-plug system, making it convenient to use with most modern Fiio IEMs.
You'll get a 3.5mm and a 4.4mm plug out of the box, which is great for versatility. Unfortunately, the 2.5mm plug is not included, which might be a drawback for some users.
The cable itself is not prone to microphonics and doesn't kink easily, but it can be quite stiff.

The accessories that come with the FF3 are generous and practical, including a Fiio Pelikan case and interchangeable plugs.
You'll also get three kinds of foams: balanced, bass, and treble (crisp), which can influence the sound tuning significantly.
It's a good idea to keep these foams safe for future uses, as they can be easily damaged or misplaced.
Good
Good is a concept that encompasses many positive aspects of life. Research suggests that experiencing pleasure and satisfaction is a fundamental human need, and it's essential for our well-being.
A study on the benefits of gratitude found that people who practiced gratitude on a daily basis reported higher levels of happiness and life satisfaction. This is likely because gratitude helps us focus on the good things in life, rather than dwelling on negative thoughts.
Practicing mindfulness can also increase feelings of good by helping us stay present and aware of our surroundings. This can lead to a greater sense of connection with others and a more positive outlook on life.
Good relationships with others are also crucial for our overall well-being. A study on social connections found that people with strong social relationships had lower rates of depression and anxiety.
Technical Details
The FiiO FF3 earbuds are equipped with a unique structure that enhances bass and features a removable jack module that can be swapped between 3.5mm and 4.4mm.
The driver is a 14.2mm dynamic driver, which is a relatively large driver size for earbuds.
The FiiO FF3 earbuds have a sensitivity of 105dB/mW, which is a high sensitivity rating indicating they can produce loud sound with minimal power.
The frequency response of the earbuds is 20Hz – 20kHz, which covers the entire audible frequency range.
Here are the technical specifications of the FiiO FF3 earbuds:
The FiiO FF3 earbuds weigh 31g, including the cable, making them relatively lightweight.
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