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FiiO K15 Headphone Amplifier DAC

FiiO K15 Headphone Amplifier DAC

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Regular price $899.99
Regular price Sale price $899.99
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Description

 

FiiO's new K15 is built with premium-grade components, an industrial-grade 30W power supply, and advanced control options (touchscreen, knob, remote, and FiiO Control App). It is designed to be a versatile, powerful, and future-proof HiFi centerpiece. The K15 pushes the boundaries of desktop HiFi by incorporating a fully differential audio circuit, dual next-generation AKM AK4497S DACs (VELVET SOUND), and a discrete Class AB transistor headphone amplifier stage capable of up to 3000 mW + 3000 mW balanced output. 

The K15 employs a fully balanced differential architecture from DAC decoding to amplification, reducing noise, crosstalk, and unwanted harmonic distortion while extending dynamic range. At its core are dual AKM AK4497S DACs, among the first to feature the new VELVET SOUND technology, offering ultra-low distortion, wide signal bandwidth, and natural tonal accuracy. This ensures lifelike detail reproduction across both low and high frequencies, delivering immersive, true-to-life sound.

The K15 integrates a 30W industrial-grade internal power supply (12V-2.5A), low-noise and long-lasting, which can also be replaced by an external DC power supply for even higher performance. The power, digital, and analog sections are placed on physically separate boards, avoiding interference while preserving precision and signal integrity. Its multi-rail analog power stage with 14 LDOs ensures ultra-clean, stable current delivery for DAC, filters, and amplifier stages.

The K15 runs on a multi-core X2000 processor (dual XBurst@2 + micro-core), ensuring powerful signal processing at low power consumption, paired with an ESP32-S3 dual-core processor (240 MHz) for efficient system management. Together, they guarantee stable playback, intuitive navigation, and responsive user control. Blending square and curved elements, the K15 combines retro elegance with modern refinement. Its chassis incorporates a structured grid for efficient heat dissipation, enhanced usability with touch operation, knob control, bundled remote, and full app integration via FiiO Control.

 

Specifications:

Product Type DAC headphone amplifier
Enclosure Color Silver
Enclosure Material CNC aluminum
Audio Channels Stereo
Functions Audio digital to analog converter, headphone amplifier, preamplifier
Source Bluetooth, USB-host
Audio Formats MQA, DSD512
Amplifier Class AB
Audio D/A Converter 32bit / 768kHz
Bluetooth Audio Codec aptX HD, aptX Adaptive, LDAC, SBC, apt-X LL, aptX, AAC
High-Resolution Audio Yes
Equalizer Yes
Digital Sound Processor (DSP) Yes
Audio Specifications Amplifier - Response Bandwidth - 20 - 80000 Hz
Output Channel Qty 2 channels
Output Power (per channel) 3000 mW
Amplifier Output Details 1400 mW - 16 Ohm - THD <1% - 2 channels (balanced)
3000 mW - 32 Ohm - THD <1% - 2 channels (balanced)
700 mW - 300 Ohm - THD <1% - 2 channels (balanced)
1400 mW - 16 Ohm - THD <1% - 2 channels (single-ended)
1400 mW - 32 Ohm - THD <1% - 2 channels (single-ended)
180 mW - 300 Ohm - THD <1% - 2 channels (single-ended)
Maximum Sampling Rate Supported 768 kHz
Equalizer Type Parametric
Equalizer Band Qty 10 bands
Additional Features Playback from Network Attached Storage (NAS)
Interfaces Bluetooth 5.1, Gigabit Ethernet, Wi-Fi
Streaming Services Roon
AirPlay Yes
Smart Phone Capable Yes
Display Type LCD display - 3.93" - monochrome
Functions Touchscreen
Connectors USB (24 pin USB-C) - front
Headphones (phone stereo 6.35 mm) - front
Headphones (4.4 mm balanced output) - front
Headphones (4 pin XLR) - front
RS-232 (24 pin USB-C) - rear
USB (24 pin USB-C) - rear
Digital audio input (coaxial) (RCA) - rear
Digital audio input (optical) (TOSLINK) - rear
USB (4 pin USB Type A) - rear
Network (RJ-45) - rear
Balanced line input (balanced jack 4.4 mm) - rear
Audio line-in (RCA x 2) - rear
Audio line-out (RCA x 2) - rear
Balanced audio output (3 pin XLR x 2) - rear

 

Included Accessories Remote control, port cover, fuse, 2 USB cables, 3.5 mm to 6.35 mm stereo jack adapter
Voltage Required AC 85 - 305 V (50/60 Hz)
Width 24.46 cm
Depth 21.3 cm
Height 6.68 cm
Weight 2.1 kg