Features Flagship AKM DAC Chips With DWA ROUTING Tech For Hi-Res Sound

FiiO K17 houses flagship DAC chips from AKM featuring the AK4191 and two AK4499EX chips handling one channel for a precisely balanced audio output. It houses an advanced 8-channel-to-4-channel low-pass filter (LPF) design that minimises common-mode interference for an enhanced channel separation and dynamic range. The architecture boasts fully separated digital and analogue sections and incorporates AKM's proprietary "DWA ROUTING" technology for exceptionally clean high-quality audio.

Discrete Class AB Headphone Amplifier Circuit For High Performance

FiiO K17 incorporates a discrete amplifier circuit for headphones, utilising an OP+ transistor current amplification design with ON Semiconductor’s MJE243/253 transistors to achieve a high current with low output impedance. The result is a powerful balanced output of over 4000mW per channel, capable of driving a wide range of headphones effortlessly.

Equipped With Fully Balanced Design with OPA1612 For Accurate Audio

FiiO K17's audio circuit features a fully differential architecture from DAC to amplifier for a highly dynamic range and reduced crosstalk. The high-quality components like low-noise OPA1612 operational amplifiers, I/V conversion and LPF are utilised across various stages for dynamic and detailed audio reproduction.

Eight Operating Modes For a Versatile Music Listening Experience

FiiO K17 supports eight distinct operating modes for a flexible listening experience. It features USB decoding powered by the XMOS 16-core XU316 that supports up to 768kHz/32bit, DSD512 and MQA full decoding. The Optical decoding receives digital audio via optical input. The single-ended line input amplifies the single-ended analogue signals. The Coaxial decoding processes digital audio via coaxial input. The balanced line input amplifies balanced analogue signals. It features Qualcomm QCC5125, which supports Bluetooth 5.1 and aptX HD/Adaptive/LDAC codecs. It supports Roon Ready and AirPlay for seamless streaming and supports USB drives and portable hard drives for local playback.

35W Linear Power Supply With Separate & Multi-Stage Analog Power Supply

FiiO K17 employs a custom-designed low-noise 35W linear power supply with 5 large 4700μF electrolytic capacitors to provide ample power reserves for stable power delivery. It features separate power supplies for digital and analogue circuits to prevent crosstalk and interference. The analogue circuit is powered by a multi-stage analogue power supply with each stage featuring a dedicated power control circuit for the digital-to-analogue conversion, low-pass filter (LPF) and transistors. It incorporates low-noise with high PSRR (Power Supply Rejection Ratio) TPA7A47/7A33 LDO serve as secondary voltage regulators to deliver clean and stable power for each stage.

Houses 3 ACCUSILICON Femtosecond Crystal Oscillators For Pure Sound

FiiO K17 is equipped with 3 ACCUSILICON ultra-low phase noise femtosecond crystal oscillators AS318-L (45.1584MHz, 49.1520MHz) and AS318-Pro (24.576MHz). This configuration reduces the impact of phase noise on audio signals with precise signal timing and minimises phase noise to ensure accurate restoration of audio across various sampling rates.

Incorporates X2000 Processor & ESP32-S3 SoC For Seamless Experience

FiiO K17 houses an X2000 multi-core processor featuring a main XBurst@2 CPU core with 2 logic CPUs plus an XBurst@ small core for excellent computing power with low energy consumption and precise audio signal processing for stable and smooth audio playback. The low-power ESP32-S3 SoC houses an Xtensa 32-bit LX7 dual-core processor offering up to 240MHz with a low-power consumption co-processor to ensure a fast and smooth user experience.

Specialised Architecture With Hi-Fi DSP, ADC Chip & Customised Femtosecond Oscillator

FiiO K17 is equipped with an M21586Q DSP chip capable of 64-bit double-precision floating point calculations at a robust 360 MHz clock frequency. K17 also includes a high-quality ES9821Q ADC and a custom ultra-low phase noise femtosecond crystal oscillator. This combination enables precise 31-band high-precision lossless PEQ high-fidelity audio even after processing. Additionally, the DSP chip offers comprehensive output protection for safeguarding headphones and connected audio equipment.

Embeds High-Quality Capacitors & Wafer Resistors For Reference-Grade Sound

FiiO K17 utilises premium components like 8 Panasonic film capacitors and 32 wafer resistors that offer low-temperature drift and low noise levels in every condition. The high-quality Beryl solid capacitors provide ultra-low ESR and strong anti-interference capabilities with a pure power supply. Additionally, 4 ELNA MILIC II capacitors, 4 Nichicon audio-specific capacitors and 6 ELNA RA3 audio-specific capacitors contribute to high-quality sound with a wide soundstage.

Incorporates Physically Separated Boards With High-Quality Internal Wiring

FiiO K17’s components like the internal power supply, and digital and analogue sections are located on physically separated circuit boards to avoid interference between them. This ensures the accuracy and integrity of signal processing for pure and clean audio output. The internal audio signal transmission is optimised using 4 sets of silver-plated, oxygen-free copper connecting cables to minimise signal loss. NEUTRIK gold-plated tulip-shaped connectors offer excellent anti-oxidation and wear resistance for precise and stable connections.

Embeds 7.84-inch HD Display Screen Supporting Custom Android 12

FiiO K17 features a 7.84-inch automotive grade large display screen supporting custom Android 12 built for intuitive functionality, allowing users to navigate functions effortlessly. You can easily access the functions displayed on the screen at your fingertip. The display is clear and readable with a portrait screen for a seamless experience.

Meticulously Designed With Modern Aesthetics & Comes With A Remote

FiiO K17 is meticulously designed with a perfect blend of retro elegance and modern technological aesthetics. It is crafted with high-quality materials and features a combination of squares and circle patterns for a unique look. K17 features 5 control knobs to switch on/off, adjust volume, gain and other functions easily. It comes with an infrared remote that allows you to switch conveniently between moods, pick between EQs, and adjust volume.

Features Protection Mechanisms & Offers High-Speed Network Connection

FiiO K17 is embedded with various protection mechanisms such as headphone amp temperature protection, transformer temperature protection and output overload protection for safe operation. Additionally, the device features an Ethernet port that supports Gigabit speed for fast and stable data transmission and an AP6256 Wi-Fi module that supports 2.4G and 5G wireless networks for stable and high-speed data transmission for lossless audio.