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FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM

FiiO Electronics Technology Co. Ltd. has named the new FiiO FDX in-ear headphones the Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM, which it is presenting in a strictly limited edition to mark the company’s 14th birthday.

With the FiiO FDX, the company FiiO Electronics Technology Co. Ltd. is celebrating a very special event. While in this country numbers such as 10, 20, 25 or 50 are more likely to be the occasion for extensive celebrations, the Chinese specialist for personal audio devices has now chosen its 14th birthday as a special occasion to present these new in-ear headphones in a particularly exclusive, limited edition.

The headphones are called the FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM, which means that almost everything that makes these headphones special is packed into this name.

FiiO FDX – It sparkles gold

The most obvious feature of the new FiiO FDX, however, is its design, because for once the developers have not stuck to what they normally do, namely a rather sober, modern interpretation of their products.

FiiO Electronics Technology Co. Ltd. can certainly be described as a manufacturer that sees itself as a technology-driven company, so the company name is by no means chosen without reason. However, this also means that the products of the Chinese company are mostly deliberately simple and thus have a timelessly elegant design. Even in the field of headphones, which has long obeyed fashionable trends, FiiO Electronics Technology Co. Ltd. always manages to strike the right balance between thoroughly appealing accents and timeless elegance.

With the new FiiO FDX, however, this is completely different; here, they don’t spill the beans, but really make a splash. The slim stainless steel housing of these in-ear headphones is refined with 24 carat gold, but that’s not all: 60 crystals ensure that the FiiO FDX actually sparkle and glitter.

These crystals are neatly arranged in lines that give the FiiO FDX the final touch of exclusivity.

Precious metals inside too

Of course, FiiO Electronics Technology Co. Ltd. doesn’t just leave it at the cover, the inside of the new in-ear headphones also contains the finest, above all precious metals.

Semi-open housing and drivers made of beryllium

Once again, the semi-open acoustic design is based on a dynamic driver with a beryllium diaphragm. This is the flagship of the FiiO Beryllium Diaphragm Dynamic Driver, according to the manufacturer, who attributes the outstanding acoustic properties of this special construction to its immense rigidity combined with minimal weight.

Another key feature of the new FiiO FDX is that it uses an acoustic prism. This is mounted directly in front of the driver and is intended to ensure that the airflow is perfectly channelled and that all frequencies reach the user’s ears at the same time, thus guaranteeing a perfectly harmonious, balanced sound image. Standing waves, which would have a negative effect on the sound quality, are also prevented.

Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM
Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM

Interchangeable Sound Tubes and a good dozen different Ear Tips

Another special feature of the new FiiO FDX are the so-called Interchangeable Sound Tubes. The manufacturer uses this term to describe filters that the user can change according to his or her own preferences in order to optimally adapt the sound character to his or her personal taste. Three pairs are included in the delivery.

But that’s not all: the customisation of the FiiO FDX is also reflected in the Ear Tips included in the package. Not only are these included in various designs and sizes, of course, but they even go so far as to offer special shapes for different music styles.

In addition to the so-called Balanced Ear Tips, there are Bass Ear Tips and Vocal Ear Tips available, each in the sizes Small, Medium and Large.

In addition, there are two pairs of foam ear tips, three pairs of so-called SpinFit ear tips (small, medium and large), and also so-called triple-flange ear tips in the sizes small and large.

Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM
Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM

Gold, silver and copper

A truly colourful mixture of different metals can also be found in the cable of the new FiiO FDX. The combination of three metals, gold, silver and copper, in conjunction with a particularly complex structure, should ensure the best results.

Each of the four cable strands consists of 20 wires in the aforementioned mixture of gold, silver and copper. All in all, this results in a structure with 240 individual wires in a helix-like construction, which is separately insulated by means of TPU (thermoplastic material) in a pack of four.

At one end, the cable has two MMCX connectors for mounting the actual earphones. The other end terminates in a universal plug that allows different inserts for different connections. You can switch between 2.5 mm jack, 3.5 mm jack and 4.4 mm PENTACONN, so that not only unbalanced but also balanced use is possible, for example with a DAP, a digital audio player. Incidentally, the cable has a practical length of 1.2 m.

Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM
Foto © FiiO Electronics Technology Co. Ltd. | FiiO FDX Collector’s 14th Anniversary Pure Beryllium Diaphragm Dynamic Driver IEM

A few technical key data

The 12 mm Pure Beryllium Diaphragm Dynamic Driver of the new FiiO FDX is capable of reproducing signals with a frequency between 10 and 40 kHz. It has an impedance of 50 ohms and a sensitivity of 111 dB.

Limited to 1,000 units worldwide

As befits such a noble piece, the new FiiO FDX will not be available as a regular series model; rather, only 1,000 units will be available worldwide.

By the way, the case, which is part of the scope of delivery, is just as befitting. The rich accessories that the new FiiO FDX comes with are housed in an elegant wooden case, which also has its own plaque indicating the occasion for the FiiO FDX – the 14th birthday of FiiO Electronics Technology Co. Ltd. Incidentally, this also applies to the individual serial number that each of the 1,000 copies has.

The new FiiO FDX is available now, but it is surprising that the price of € 799,- is not as exclusive as the features and the limited number of units would suggest.

Getting to the point

The new FiiO FDX from FiiO Electronics Technology Co. Ltd. is a truly exclusive in-ear headphone. Not only does it use an exceptional driver and other features that ensure impeccable technical data, but this model also presents itself with a unique design that is entirely in keeping with the 14th birthday of the specialist for personal audio devices. Unfortunately, not too many users will be able to enjoy these headphones, as the edition is limited to just 1,000 pieces worldwide.

PRODUCTFIIO FDX
Price€ 799,-
BrandFiiO
ManufacturerFiiO Electronics Technology Co. Ltd.
DistributionNT Global Distribution GmbH
More about this manufacturer at HIFI BLOG
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Michael Holzinger

Michael Holzinger, founder and editor-in-chief of HiFi BLOG and sempre-audio.at, has been working for years as a journalist in the fields of IT, photography, telecommunications and consumer electronics.

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