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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.
New: The FiiO ESTICK is the new power bank designed specifically for the FiiO KA17, to purchase it click here
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
Specifications | |||
Name/Model | KA17 | Hardware solutions | DAC: ES9069Q*2, USB decoding: XMOS XU316*1 |
Color | Black/Blue | Volume control | Physical buttons |
Weight | About 33.5g | Dimensions | About 64×27.7×12.7mm |
Driver-free mode (switch mode) | Supported | Desktop mode | Supported |
MQA | Supported MQA full decoding | Channel balance | <0.2dB |
Gain level | L/H | Status display | On the display: Transfer format, volume level, gain level, USB mode, sampling rate, etc. |
Display | 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 | |||
Buttons | Multifunction button*1; Volume up/down*1 | USB | 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 | <1Ω |
L+R≥270mW+270mW (32Ω, THD+N<1%) | Crosstalk | ≥75dB | |
L+R≥30mW +30mW (300Ω, THD+N<1%) | Output amplitude | 3Vrms | |
THD+N & Noise | <0.0015% (1kHz/-15dB@32Ω) | SNR | ≥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 | <1.5Ω |
L+R≥650mW+650mW (32Ω, THD+N<1%) | Crosstalk | ≥114dB | |
L+R≥90mW+90mW (300Ω, THD+N<1%) | Output amplitude | 4.5Vrms | |
THD+N & Noise | <0.0004% (1kHz/-8dB@32Ω) | SNR | ≥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 | <1Ω |
L+R≥140mW+140mW (32Ω, THD+N<1%) | Crosstalk | ≥80dB | |
L+R≥20mW +20mW (300Ω, THD+N<1%) | Output amplitude | 2Vrms | |
THD+N & Noise | <0.0015% (1kHz/-10dB@32Ω) | SNR | ≥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 | <1.5Ω |
L+R≥300mW+300mW (32Ω, THD+N<1%) | Crosstalk | ≥110dB | |
L+R≥30mW+30mW (300Ω, THD+N<1%) | Output amplitude | 3Vrms | |
THD+N & Noise | <0.0005% (1kHz/-3.5dB@32Ω) | SNR | ≥120dB (A-weighted) |
Frequency response | 20Hz~50kHz: damping<0.5dB | Noise floor | <2.2uV (A-weighted) |
20Hz~20KHz: damping<0.1dB |
About FiiO Electronics Technology Co., Ltd.
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.
Customer Service
About products
Research & Development Team
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
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.
Brand Spirit
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.
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.
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.