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FiiO - K5

Own this at an EMI of Rs. 650 onwards

Confused? Don't be, when there's a Guru to guide the way.


The Fiio K5 is a high quality headphone amplifier and DAC with an integrated dock for FiiO music players, like the X1, X3II, X5II, X7 and DAC/Amps like the E17K. The headphone amplifier employs a Texas Instruments TPA6120A2 chipset, which provides an extra current amplification stage resulting in high current output suitable for highly dynamic program material. The headphone output also provides three gain settings which helps in driving a variety of headphone sensitivities.

The K5 has stereo RCA inputs and outputs, along with a balanced output via two TRS 1/8" / 3.5 mm. The rear dock port is a secondary input for docking FiiO players, in case you want to bypass the top loaded dock. A USB port is also included as a pass through for USB functions such as USB storage read/write and USB DAC functions. The K5 ships with a power supply.

  • Docking Station

    FiiO music players like the X1, X3II, X5II, X7, and the DAC/Amp E17K have an 11-pin micro USB port and will help utilize exclusion docking expansion functions such as amplification and charging.

    High Output Headphone Amplifer

    Employing TI's TPA6120A2 current feedback headphone driver, the K5 uses exclusive technology to lower its output impedance to a transparent <1 ohm and increase its maximum output power to up to 1.5W@ 32 ohms. With the help of an extra current amplification stage and comprising on internal high efficiency, low noise power supply; the K5 has high current output, satisfying highly dynamic program material, and has three gain settings that is perfect for headphones of different sensitivities

    Finely Crafted Design

    In comparison to the last-generation E-series products, the K5 has made breakthrough strides in exterior designs and craft, with lower tolerances for all joints and seams, higher-quality sanded surface finish and an indented front bezel assembly for a further enhancement in appearance.

    Expanded USB DAC Functions

    The K5 provides further amplification of X3II, X5II, X7, E17K's DAC signal by directly connecting them to USB source with the aid of the USB In port and receiving the decoded line signal through the dock for amplification. (USB DAC driver installations for X3II, X5II, X7, and E17K are required where applicable)

    Synchronized Power On/Off

    When the K5 powers on/off, the docked X1, X3II, X5II, X7, or E17K will also switch on/off with the K5, making it a great convenience for users and completel integrating it with the docking station.

  • 10Hz - 90000Hz
    16 Ohms - 300 Ohms

    6.35mm Jack
    0.002% (1KHz)

    Dimensions - 120mm× 130mm× 55mm
    Weight - 450 g


    One Year

    Manufacturer's Warranty covers only manufacturing defects. For more details, check our Warranty Page. To claim warranty, please maintain a copy of your invoice and Contact Headphone Zone Care (authorised service center) at or +91 750 664 6988.

  • "For sure you can call K5 a docking "jack of all trades" and "master of expanded dynamic sound" 
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    "If you are interested in the K5 because you have one of the other Fiio DAPS and want to use the K5’s amp, I recommend demoing it. The Fiio K5 is no different and its look, layout and use are very simple and straightforward."
    Read More

Category: 24

Customer Reviews

Based on 3 reviews
Worth Every penny...

First of all thanks to headphonezone for prompt delivery.

I spent hours with Fiio K5 using different set of headphones listing to wide verity of track in high quality and mp3s in 320 kpbs. Every time its was great, unexpected, exceptional sound quality with Sennheiser 650's. DAC i used Fiio X1 2nd gen, Fiio X5 3rd gen and Fiio K1 for mac.

Hi Praveen, Thanks for this review man! You sure have taken a lot of efforts and thanks for sharing the results. I am sure this will help people when they read about this product. :)
FiiO-K5 head phone amplifer

The amp is working great and iam so happy

Brilliant little amp!

The DAP I use pretty much every single day is a FiiO X3 2nd gen and I had often wondered if the sound could benefit from a desktop amplifier. A couple of weeks of comparing specs and prices steered me towards the recently introduced FiiO K5 which Headphonezone got across to me in less than 36 hours.
It is always a joy to unbox a FiiO product. The packaging is superlativeand gives the impression of a very premium product. Inside the box there are the usual cables and connectors but not FiiO’s proprietary 11 pin micro usb connector. This means that you have only the option of docking your player and not connecting it via a cable so you can pretty much forget about putting a case on your player. The power cable lacks an earth pin and should definitely be replaced. An odd oversight.
The K5 itself is solidly built and feels unlike anything you could buy at this price point or even at three times the price. Build quality is the gold standard in desktop amps and I think we can finally lay to rest all the 'All Chinese products are flimsy' arguments. The large volume control knob is precise and oddly satisfying to operate. The gain and selector switches are metal as is the entire body of the K5.
The docking process itself is a bit scary for the first time user and it took me about 5 minutes to get it right. Luckily the micro usb connector on the K5 has a certain degree of movement and this makes the docking process easier.
I have used the K5-X3ii combination with the Sennheiser Momentum on ear and the Beyerdynamic DT990 Edition 32 ohm. Obviously, a good amp is supposed to add value to the sound without 'colouring' it and this is exactly what the K5 does. There is a noticeable increase in soundstage especially on the Beyers and an overall improvement in the listening experience. No two people hear exactly the same and obviously there will be varying opinions on any audio product. That being said, I couldn’t be happier with the K5 and would recommend it to any audiophile.