FiiO F9 PRO Dynamic Driver & 2 Balanced Armatures Triple Driver Hybrid IEM with the eminent KNOWLES TWFK-30017-000 Driver and MMCX Detachable connections. Titanium PRO finish.

F9 PRO includes the detachable cable and the additional 2.5mm Balanced cable ( suitable to be connected to the FiiO X3 Mark III, X5 III and the X7 Mark II players. Also contains additional accessories such as a special foam pad set and a water-resistant neoprene carrying pouch.

1 Dynamic Driver & 2 Balanced Armatures KNOWLES 30017 for Triple helpings of rich sound

• The F9 PRO utilizes a hybrid design in which each channel is composed of one dynamic and two balanced armature (BA) drivers. The 9.2mm dynamic driver is specifically tuned to produce bottomless lows while the eminent KNOWLES 30017 driver is used for precisely portray extended upper-mid and highs.
• KNOWLES dual balanced armature (TWFK-30017-000) gives the F9 PRO immense capabilities in resolving every last detail, all in a truly powerful and overwhelming presentation of your music - the way it was meant to be heard. 

Freely switch between balanced and single-ended with standard MMCX connectors

• The F9 PRO utilizes the standard MMCX connector for its interchangeable cables, and comes standard with both 2.5mm balanced and 3.5mm single-ended cables.
• The 2.5mm balanced cable is made of silver-plated copper wire, which ensures a balanced sound signature and a high level of detail retrieval. Of course, due to its balanced nature, the left and right channel wires are separated so that there is significantly greater channel separation-leading to a richer, more detailed musical experience.
• The 3.5mm single-ended cable comes with a full set of in-line controls capable of playing/pausing songs, switching tracks, volume adjustment, and even calls with its high-quality microphone. This marks the F9 PRO a perfect complement to enhance your experience with your portable audio player or cell phone.

Making Waves with an Organic Design

• The F9 PRO’s stunning exterior was inspired by something familiar we are all accustomed to: water. The sleek lines recall the ripples that occur when drops of water fall into a lake, making the F9 PRO both more human and familiar.

Organic Strength

• The ripple-like lines on the F9 PRO not only give it a unique touch, but also serve to ensure structural strength and maximize the amount of space internally for a more optimized design overall. Moreover, the inside layer of the F9 PRO ’s shell is specially lined with plastic to both better secure the drivers and eliminate internal resonances.

Colossal Energy from a Tiny Body

• You would never imagine that such a grand sound could come from something as tiny as the F9 PRO. Due to the way we have cleverly packaged the naturally-detailed BA drivers and the traditionally vast-sounding dynamic driver, we have achieved a fully cohesive sound that you would normally not think is possible from a puny in-ear monitor.

PEK polymer nanocomposite driver for heightened detail

• The F9 PRO utilizes a dynamic driver made of PEK (polyether ketone) polymer nanocomposite, known for not only being tough but also being light. This allows the F9 PRO’s dynamic driver to be highly capable of producing quick, detailed, and extended bass.

Scientifically Tuned based on Physics and Psychoacoustics

• We achieved maximum performance from the F9 PRO’s drivers by looking to the laws and principles of physics and psychoacoustics when designing our product. By doing so, the drivers are able to work in perfect harmony to achieve a cohesive sound that is absolutely able to reproduce every part of the sound frequency spectrum – allowing for a frequency response from 15 Hz to 40 kHz.

Hi-Res Audio Certification

• The F9 PRO has been certified by the Japan Audio Society to be “Hi-Res Audio” capable. This means that the F9 PRO is capable of a frequency response up to 40kHz, which can fully reproduce the audio and give you a natural and life-like listening experience that truly lets you listen to the music the way the artists wanted it to sound.

Precision Craftsmanship

• The F9 PRO’s outer aluminum shell is meticulously crafted using CNC systems – impressive already, but it doesn’t stop there. The shells are then carefully hand-polished and matched, before going through sandblasting and anodization. This complex overall process ensures that the F9 PRO has a masculine, robust shell that is yet encapsulated in a tender beauty.

Over- the –ear design for an enjoyable experience

• After much testing and feedback from a wide variety of users, we came up with an over-the-ear design that is not only ergonomic but also comfortable. With the F9 PRO, you can easily get lost within your music for hours without fatigue. 

Outgoing red or serene black

• Choose red for an unreserved and vigorous loo, or go for back for an understated and sophisticated appearance.

Thoroughly Tested Before Being Delivered to You

• We conduct dozens of stringent quality tests, thousands of times, so that you may cast your worries away and your fears are allayed.

Unexpectedly Thoughtful Accessories

• Besides the 2.5mm balanced and 3.5mm single-ended cables, the F9 PRO comes with a whole host of other accessories all designed to tailor and safeguard your listening experience. For instance, the F9 PRO comes with three different kinds of ear tips – one set optimized for bass while the other is designed for a more balanced presentation. The third one is the most appreciated foam type, for the maximum comfort and listening quality experience. Each type of ear tips comes in small, medium, and large sizes. The color of the ear tips is even matched to the color of your F9 PRO unit! We give you control over your listening experience, so you can listen however you want, whenever you want.
• The F9 PRO also comes with our popular waterproof carrying case, so you can be rest assured that your earphones will continue to function for years to come.

Specification

• Headphone type: over-the-ear
• Frequency response: 15Hz-40kHz
• Drive type: 1 dynamic + 2 balanced armature drivers Knowles
• Impedance: 28Ω
• Sensitivity: 106dB/mW
• Maximum Input Power: 100mW
• Plug: 3.5mm straight gold-plated stereo jack/ 2.5mm TRRS straight gold-plated stereo jack
• Cord length: 120cm
• Single Earbud Weight: 3.76g
• Detachable cable design: Yes (standard MMCX connector)

Package

• FIIO F9 PRO
  
• 3.5mm single-ended cable with in-line controls 
• 6 pairs of Silicone ear tips + additional foam set
• Carrying case 
• Water-resistant Neoprene carrying pouch
• 2.5mm balanced cable

A ´B-Stock´ is a product which has been returned by a customer within their 14/30 Day Money Back Guarantee.

These items are offered at a special, reduced price. Please note, that occasionally the packaging is no longer in pristine condition.

B-Stock products are in full working order and are checked by specialists before releasing them as B-Stock. They come with the full 2 year warranty as any other new product.

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