FiiO KA17 Balanced Portable DAC Headphone Amplifier

New product

131,07 €

This product is actually out-of-stock

Brand: FiiO


FiiO KA17 Balanced Portable DAC Headphone Amplifier

  • DAC:Dual ES9069Q
  • DSD:DSD512
  • Inputs:1 x USB Type-C (Data), 1 x USB Type-C (Power Port)
  • Outputs:1 x 3.5mm SPDIF (shared 3.5mm single-ended headphone output)
  • Headphone Output:1 x 3.5mm Single-ended, 1 x 4.4mm Balanced

The KA17 comes with an innovative Desktop Mode and includes a dedicated Type-C power port. When there is enough USB power or when the power port is connected to a power adapter, the Desktop Mode automatically adjusts the DAC, amp power, and headphone amplifier to a high-performance state. This allows the device to fully unleash its potential and output power.

The KA17 is FIIO's flagship model and is the first USB dongle to feature the THX headphone amp circuit. It utilizes the latest THX AAA 78+ headphone amplifier architecture, which consists of 4 fully balanced channels and 8 parallel-connected op-amps. This configuration significantly increases the output power, especially in Desktop Mode where the balanced output power can reach up to 650mW + 650mW. This gives the KA17 the dynamics, control, and sound reproduction quality similar to that of a desktop amplifier.

For the DAC, the KA17 integrates two newly released ESS dual-channel flagship DACs, ES9069Q. These DACs are based on the fourth-generation 32-bit HyperStream architecture, offering higher performance and lower power consumption. They also effectively reduce digital noise inside the DAC, resulting in a remarkable dynamic range of 130dB and a THD+N rating of -120dB. This ensures outstanding performance and a purer sound background.

The KA17 also incorporates the professional-grade XMOS 16-core chip, XU316, which is rarely found in USB dongles. This chip provides lower latency, more stable transmission, and better compatibility. It supports high-resolution audio up to 768kHz/32bit, native DSD512 decoding, and MQA full decoding. Dual audio crystal oscillators further enhance its ability to adapt to various sources and sampling rates accurately.
The KA17 stands out by offering PEQ adjustment, a feature not commonly found in USB dongles. It supports ten customizable frequency bands, allowing users to fine-tune EQ bands, gain level, and bandwidth using FIIO's independently developed adjustment algorithm and interface.

Despite its compact size, the KA17 houses a multi-stage HiFi audio architecture similar to that of a dedicated audio player. It includes separate digital and analog boards to prevent crosstalk, a 3-stage 10-rail power supply design, and comes with a matching leatherette case. It also incorporates built-in temperature detection and output DC detection, supports 60 and 120 levels of volume adjustment, and even offers SPDIF output capability.

List of item included:

1x FiiO KA17 Portable DAC Headphone Amplifier
1x USB-C to USB-C OTG cable
1x USB-C to USB-A adapter
1x Leather cases




Hardware solutions

DAC: ES9069Q*2, USB decoding: XMOS  XU316*1



Volume control

Physical buttons


About 33.5g


About 64×27.7×12.7mm

Driver-free mode (switch mode)


Desktop mode



Supported MQA full decoding

Channel balance


Gain level


Status display

On the display: Transfer format, volume level, gain level, USB mode, sampling rate, etc.


0.91-inch OLED display

Firmware upgrade

Supports upgrade through USB

Max supported sampling rate

PCM: Supported up to 768kHz/32bit

Recommended impedance

PO: 8~150Ω

DSD: Supported up to SD512 (Native), DOP256

BAL: 8~300Ω

SPDIF: Supported up to 96kHz/24bit

Buttons and Ports


Multifunction button*1; Volume up/down*1


Type-C USB2.0 (power supply/data transfer)/USB Type-C POWER IN (orange, powering)

Headphone output

Standard 3.5mm port (PO/coaxial out shared)

BAL output

Standard 4.4mm port

Toggle switch

Desktop mode switch*1

Power Supply Parameters

Power supply

DC 5V  ≥1A

Audio Parameters

Parts of performance and parameters of headphone output (3.5mm, UAC decoding, Desktop mode: High Gain)

Output power

L+R≥320mW+320mW (16Ω, THD+N<1%)

Output impedance


L+R≥270mW+270mW (32Ω, THD+N<1%)



L+R≥30mW +30mW (300Ω, THD+N<1%)

Output amplitude


THD+N & Noise

<0.0015% (1kHz/-15dB@32Ω)


≥123dB (A-weighted)

Frequency response

20Hz~50kHz: damping<0.5dB

Noise floor

<2.1uV (A-weighted)

20Hz~20KHz: damping<0.1dB

Parts of performance and parameters of BAL headphone output (4.4mm, UAC decoding, Desktop mode: High Gain)

Output power

L+R≥460mW+460mW (16Ω, THD+N<1%)

Output impedance


L+R≥650mW+650mW (32Ω, THD+N<1%)



L+R≥90mW+90mW (300Ω, THD+N<1%)

Output amplitude


THD+N & Noise

<0.0004% (1kHz/-8dB@32Ω)


≥126dB (A-weighted)

Frequency response

20Hz~50kHz: damping<0.5dB

Noise floor

<2.2uV (A-weighted)

20Hz~20KHz: damping<0.1dB

Parts of performance and parameters of headphone output (3.5mm, UAC decoding, Non-Desktop mode: High Gain)

Output power

L+R≥110mW+110mW (16Ω, THD+N<1%)

Output impedance


L+R≥140mW+140mW (32Ω, THD+N<1%)



L+R≥20mW +20mW (300Ω, THD+N<1%)

Output amplitude


THD+N & Noise

<0.0015% (1kHz/-10dB@32Ω)


≥120dB (A-weighted)

Frequency response

20Hz~50kHz: damping<0.5dB

Noise floor

<2.0uV (A-weighted)

20Hz~20KHz: damping<0.1dB

Parts of performance and parameters of BAL headphone output (4.4mm out, UAC decoding, Non-Desktop mode: High Gain)

Output power

L+R≥150mW+150mW (16Ω, THD+N<1%)

Output impedance


L+R≥300mW+300mW (32Ω, THD+N<1%)



L+R≥30mW+30mW (300Ω, THD+N<1%)

Output amplitude


THD+N & Noise

<0.0005% (1kHz/-3.5dB@32Ω)


≥120dB (A-weighted)

Frequency response

20Hz~50kHz: damping<0.5dB

Noise floor

<2.2uV (A-weighted)

20Hz~20KHz: damping<0.1dB


FiiO logo

About FiiO Electronics Technology Co., Ltd.

01 Brand Introduction - HiFi+Fashion

FiiO Electronics Technology Co., Ltd. was established in 2007.  It is a high-tech enterprise that combines research, development, production and sales, and its sales are mainly based on its own FiiO brand as opposed to OEM/ODM.  It focuses on digital audio, with current mainstay products being portable headphone amplifiers, DAC / amps and portable digital audio players.

FiiO: It is composed of Fi (Fidelity) from HiFi and iO (represents number 1 and 0) which indicates the sincerer feeling and more convenient life the digital tech has brought to us.

飞傲: The Chinese transliteration of FiiO, as well as representing youthful vigor and the active & innovative spirit of the company.

Audio products are meant to fulfill the spiritual pleasure of users.

  1. FiiO provides products and service related to music.
  2. We also hope to bring happiness to our users with the provided products and service, which is also the key value of FiiO.

Customer Service

  1. Good after-sales service, more reliable
  2. Great user experience, more pleasure
  3. Variety of activities, more involved

About products

  1. Affordable: FiiO products are well-known for its feature of high cost-performance. Lowering the entry level to make more customers can afford.
  2. Easy to use: FiiO pays great attention to the user experience. We are not only provide products with high quality, but also easy to use and with long lasting durability.
  3. More accessories bring more fun: Enable to play in a variety way and use under more possible environments.
  4. Updates available: Equipped with a variety of ports, it makes the music players can still connect to external amp/DAC for upgraded enjoyment.
  5. Endless transformability available: With replaceable amp module and expandable storage, the X7 can bring more playability.

02 Company Profile

Research & Development Team

  • Twenty years of R&D experience in audio products
  • Former core R&D team for audio products from OPPO
  • A team of 20 professional R&D engineers in software, hardware, industrial design, structure and electro-acoustic.

Research & Development Investment

FiiO keeps bringing in advanced equipments and high-tech talents so as to ensure the stable growth and long term competitive edge. Up till now, the team size has expanded three times than that of 2007 when we established.

Team Composition

The R&D team is made up of development dep, engineering dep and QC dep, with 60+engineers in total.

Authorized certifications

FC, CE, KC, CCC and ISO9001:2008 ensure the safety and quality of the products.

Production management

FiiO has strict requirements to production with almost “zero tolerance” even to small problems, which is strictly in compliance with the International Quality Management System ISO9001. 

QC Equipment 

  • a. AP audio analyzer (valued at 200,000RMB).
  • b. Life-span test platform against high & low temperature, swing and plug & unplug trial.
  • Aging test carriage towards mass production.
  • Aging test machine under high & low temperature.

Customer oriented

Driven by customers’ needs, we innovate constantly and response promptly to the market changes. We develop new products based on customers’ needs and compete for more market shares.

Company culture - Our Vision

Present the world a better “Made in China”.

Brand Spirit

  • Innovation

the earliest company that designed the minimum volume headphone amplifier. First dockable amp & DAC product. First amp specially designed for iPod/iPhone. First amp with adjustable power supply and power supplied by mobile phone battery. First multifunctional headphone amp & DAC for Android smarphone. First Hi-Res music player at a price lower than 1000RMB supporting 192K music. First Android-based Hi-res music player. 

  • Quality

Repair Rate < 1%. Sound Quality Control system. Original components imported from TI, Wolfson, Maxim. Company-wide quality control. +20 quality engineers and inspectors. Complete testing facilities. 

  • Service

CEO at the frontline of customer service. 100% response to enquiries. The most popular headphone amplifier brand on Head-Fi. First class website and contents in the audio industry. Interaction with and support to customers on Facebook and Microblog (twitter-like social website).

Brand Mission

FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style.

Write a review

FiiO KA17 Balanced Portable DAC Headphone Amplifier

Write a review



30 other products in the same category:

Customers who bought this product also bought: