FiiO K5 Pro DAC and Headphone Amplifier

$ 149.99

The K5 Pro DAC and Headphone Amplifier from FiiO is a high-performance headphone amplifier and USB DAC that features coaxial, optical, and RCA line inputs, and 1/4" headphone and RCA line outputs. It can be used as a bridge for several music playback devices allowing your computer, speakers, and headphones to work together delivering an emotional experience with realistic detail from your music. The K5 Pro has a gain switch to adapt to low, medium, and high gain levels to work with a wide variety of headphones. The DAC supports decoding up to 768 kHz and also performs hardware native DSD decoding. You can take advantage of digital audio through the optical and coaxial inputs, which support up to 192 kHz signals for connecting various music players and digital interfaces.

A Concert Right on Your Desktop
With the K5 Pro, you can experience realistic details and plenty of emotions from your music. It acts as a bridge allowing your computer, speakers, and headphones to work together in transporting you to a concert hall right from your desktop.

Naturally Gifted at Decoding
The K5 Pro's clock management and overall decoding performance is improved compared to the previous K5 model. This is due to the XMOS XUF208 USB decoding chip with an updated clock matching management system. It supports decoding up to a sample rate of 768 kHz and hardware native DSD decoding.

Faithful Reproduction of Music with Coaxial and Digital Inputs
No matter what audio equipment you use, the K5 Pro allows you to take advantage of digital audio with optical and coaxial inputs supporting up to 192 kHz inputs. This is convenient for connecting various music players and digital interfaces.

Thanks to the high-performance AKM AK4493 DAC with 32-bit processing and Velvet Sound technology, along with the XMOS USB decoding chip with 768 kHz and DSD inputs, the K5 Pro delivers natural sound quality. The left and right audio channels are independently handled with full differential audio output. It offers a high level of resolution so you can hear every element in your music.

Four-Level Audio Architecture
The K5 Pro packs a four-level audio circuit: second-order LPF + analog volume adjustment + voltage amplification + current drive. Each part of the amplification circuit works together in harmony for a natural dynamic range and high resolution of sound.

Box Contains

    FiiO K5 Pro DAC and Headphone Amplifier
  • USB Type-A to USB Type-B Cable
  • Power Adapter
  • Power Cable
  • 4 x Rubber Feet
  • 1/8" Headphone Adapter
  • Limited 1-Year Warranty

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Easy 30 Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to Kellards within 30 days of the purchase date, subject to the conditions and exclusions below.

You may initiate a return or exchange by requesting an RMA at

Securely affix your return label to the outside of the shipping package. Return shipping fees are the responsibility of the customer. We recommend you ship via insured ground service with a tracking number. We cannot be responsible for lost packages.

Return Address

Kellards Return
3237 Greenpoint Ave.
Long Island City NY 11101

Eligibility Conditions

Please read conditions below. If all conditions are not met, Kellards reserves the right to refuse the return or to charge a minimum 15% restocking fee. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. Kellards can only refund the original purchase price. Shipping and handling fees are nonrefundable.

Nonreturnable Items

  • Electronic software downloads
  • Opened consumable items (e.g., film, tapes, paper, bulbs, CD, DVDs, ink cartridges, etc.)
  • Underwater equipment that has been submerged

Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.


Please allow 3-5 business days for mail-in exchanges to be processed.

Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.