Fiio KA17 DAC and Headphone Amplifier

Highlights:

• Flagship Dongle - Strong desktop mode with 650mW+650mW power
• Fully unleashed power, can easily drive most IEMs and headphones
• Two ES9069Q flagship DACs
• Fourth generation 32-bit HyperStream technology, greatly improved sound
• Ten-stage high-precision PEQ
• More customization options to better meet personal taste, more suitable for more people 16-core XMOS XU316
• Lower latency, better stability, wider compatibility
• Multi-stage balanced THX AAA 78+ headphone amplifier
• New design, better performance, more realistic and natural sound
• Multi-stage HiFi audio circuit
• Multi-stage audio circuit, comparable to DAPs
• Anti-crosstalk by separate digital and analog boards
• Guarantees the accuracy and preserves the dynamics of the original audio signal 3-stage 10-rail power supply design
• Stable power supply ensures consistently high audio quality Intuitive control via dot matrix display

Desktop mode, the next level

Desktop mode has been continuously refined with the release of various products such as the portable yet desktop-ready M17, Q7, M15S, Q15 and KA13. And now the perfected Desktop mode has made its way to the FiiO KA17. The FiiO KA17 features a dedicated Desktop mode that is activated via a dedicated D.Mode switch. When you activate Desktop mode, the FiiO KA17 will automatically adjust the DAC, amplifier power supply and amplifier output power to fully exploit their potential with a higher output power.

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Parallel output, big performance increase

With sufficient USB power supply input and Desktop Mode enabled, FiiO KA17's four THX headphone amplifiers work together in parallel to achieve higher current and total output power. The result is an output power of up to 270mW+270mW for the single-ended output and up to 650mW+650mW for the balanced output.

Two flagship DACs ES9069Q - Two cores power four ways, outstanding performance

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Audiophile 16-core XMOS XU316 - outstanding performance

The 16-core XMOS XU316 chip, which is rarely found in audio dongles, handles the USB tasks in the FiiO KA17. This chip is characterized by lower latency, more stable signal transmission and better compatibility than the commonly used USB control chip. In conjunction with two quartz oscillators, the KA17 is more than capable of processing various digital audio sources with different sampling rates.

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All-new THX AAA 78+ headphone amplifier design - Compact and elegant, but with pure and fine sound

The THX AAA 78 headphone amplifier has proven itself in the mid- to high-end players M11 Pro and M11 Plus. Now the even newer and improved THX AA 78+ is used in the FiiO KA17. Inside the KA17 are THX AAA 78+ headphone amplifiers with 8 operational amplifiers working in parallel in a fully symmetrical 4-channel configuration, which not only provide higher output power, but also more detailed and realistic sound.

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Multi-stage HiFi audio circuit, comparable to DAPs

FiiO engineers have managed to adapt the audio circuits of mid- to high-end digital audio players to the compact KA17. With its high-precision processing of digital audio signals thanks to the dual quartz oscillator clocking and the high-performance DAC, which is converted into analog signals by a robust analog section consisting of LPF voltage amplification, BUF current extension and headphone amplifiers working in parallel, you can be sure that the KA17 can reproduce the details and dynamics of your music just as well as a serious digital audio player.

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Separate digital and analog boards, like Yin and Yang

The digital and analog parts of the audio circuit in the FiiO KA17 are located on completely separate boards, with each board fitted with a shielding cover for complete isolation. This ensures that the digital and analog parts of the audio circuit do not interfere with each other, allowing for precise processing of the audio signals.

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3-stage 10-rail power supply design - Compact size outside, large design inside

Inside the KA17 is a 3-stage, 3-main rail power supply. The three main stages of the power supply consist of a first stage of filtering and surge protection, a second stage of DC-DC boost conversion, and a third stage of LDO voltage stabilization. This filtering of electricity applies to each of the three main power supply rails, one each for the digital, digital-to-analog conversion, and analog signal parts of the audio circuit. In addition, the power supply circuit is divided into ten smaller rails. The KA17's power supply is based on the same principles as desktop headphone amplifiers, providing a robust foundation for the KA17's excellent sound.

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Intuitive dot matrix display control, a simple screen

The FiiO KA17 features a 0.91-inch dot matrix display that can intuitively display various functions. In conjunction with the physical buttons, you can also easily adjust various settings such as screen orientation, filters, and sleep timer.

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Independent Type-C power supply

The KA17 has two USB Type-C ports. One is the typical port used to connect to other devices such as phones, tablets and computers. The orange port on the side is for use with an external power adapter. When an external power adapter is connected to this port, the KA17 can achieve higher power output and better performance without consuming the battery of your phone or other connected device.

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Multiple protection systems for worry-free hearing

The KA17 features temperature and DC current monitoring systems to ensure that both the device itself and the connected headphones are not damaged under abnormal conditions. You can also set a maximum volume to avoid accidental hearing damage caused by music that is too loud.

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Two different colors, with matching leather case

The KA17 is available in either black or blue, and each version comes with a color-coordinated leather case to protect the device in style.

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Thought out down to the smallest detail to enhance your experience

Driver-free mode: UAC1.0 mode available, just plug and play 2 volume control curves: High and low gain volume curves to ensure a better experience with headphones of different impedances 2 sets of volume control levels: 60 and 120 level volume control available, for finer or faster tuning Supports Android FIIO Control: APP Adjustable PEQ and other functions SPDIF output that turns into a digital jukebox: The 3.5mm headphone jack also supports SPDIF output, allowing you to connect external high-end DACs for even more flexibility and better sound quality.

*SPDIF output supports 96kHz/32bit

Technical data

• Colors: Black or Blue
• USB Chip: XMOS XU316
• DAC: ES9069Q*2
• Operational Amplifier: OPA1662*2
• Headphone Amplifier: Fully Balanced THX AAA 78+
• Maximum Supported Formats: Asynchronous 768kHz/32bit,
• DSD512, MQA Full Decoding
• USB DAC Driverless Mode: Supported
• Display: 0.91-inch dot matrix display
• Headphone Outputs: Single-ended 3.5mm+balanced 4.4mm
• Dimensions: About 64.0x27.7x12.7mm
• Weight: About 33.5g
• Output Power 1: L+R≥270mW+270mW (32Ω/THD+N＜1%/single-ended/desktop mode)
• Output power 2: L+R≥650mW+650mW (32Ω/THD+N＜1%/balanced/desktop mode)
• Output power 3: L+R≥140mW+140mW (32Ω/THD+N＜1%/unbalanced/non-desktop mode)
• Output power 4: L+R≥300mW+300mW(32Ω/THD+N＜1%/balanced/non-desktop mode)
• Output power 5: L+R≥30mW+30mW (300Ω/THD+N＜1%/single-ended/desktop mode)
• Output power 6: L+R≥90mW+90mW (300Ω/THD+N＜1%/ balanced/desktop)
• Signal to noise ratio: ≥126dB (A-weighted)
• Noise floor: PO＜2μV(A-weighted); BAL＜2.2μV(A-weighted)
• THD+N: ＜0.0004% (1kHz/32kΩ)

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Scope of delivery

• KA17*1
• Leatherette case*1
• Dual Type-C to OTG short data cable*1
• USB Type A-C adapter*1
• USB connector cover*2
• Quick start guide*1