FiiO Introduces A Flagship-Grade All-in-One DAC & Amp – The K15

Step into a new era of high-fidelity desktop audio with the FiiO K15, a feature-rich all-in-one DAC and headphone amplifier built for serious audiophiles. As one of the first to adopt dual AKM AK4497S DAC chips with enhanced VELVET SOUND technology, the K15 delivers low distortion, wide dynamic range, and lush musicality. With powerful Class-AB amplification, 8 versatile playback modes, and advanced streaming support including Roon Ready, AirPlay and Bluetooth LDAC, the K15 is engineered for versatility and precision. Whether you’re driving power-hungry headphones or fine-tuning your sound with onboard PEQ, this fully balanced, precision-built desktop unit offers everything you need for an uncompromised listening experience.

Features Dual AKM DAC With VELVET SOUND Tech For Hi-Fi Sound

FiiO K15 is among the first to feature dual high-end AKM AK4497S DAC chips, enhanced with AKM’s upgraded ‘VELVET SOUND’ technology. This audio architecture ensures low distortion, ultra-wide dynamic range, extended signal bandwidth, and impressively low power consumption. As a result, it delivers a natural and immersive sonic experience with rich detail from low to high frequencies. VELVET SOUND embodies AKM’s philosophy of achieving true-to-life sound through refined engineering and uncompromising acoustic realism.

Equips Discrete Class-AB Headphone Amplifier for Powerful Output

FiiO K15 incorporates a fully discrete headphone amplifier circuit based on an OP + transistor current-boosting design. A complementary pair of ON Semiconductor MJE243G/253G transistors ensures high current, low impedance output. This setup provides a balanced output power of up to 3000mW + 3000mW, enabling the K15 to effortlessly drive both demanding full-sized headphones and sensitive in-ear monitors, producing a smooth, melodious, and natural sound signature.

Offers Eight Versatile Operating Modes For Tailored Listening Needs

Embeds Fully Balanced Circuit With Physically Isolated Boards

FiiO K15 employs a fully differential design from DAC decoding to headphone amplification. This architecture ensures a wide dynamic range and significantly reduces crosstalk and noise, elevating overall audio purity. Digital, analogue, and power sections reside on separate physical boards to ensure signal integrity. Two Accusilicon low-phase-noise femtosecond crystal oscillators (45.1584MHz and 49.1520MHz) ensure ultra-precise signal reproduction across all sampling rates for stable, high-fidelity playback.

Robust Power Supply Design for Maximum Isolation and Purity

FiiO K15 features a built-in next-gen 30W (12V-2.5A) industrial-grade power supply, supporting ultra-wide 85–305VAC input voltage and extreme operating temperatures (-40°C to 85°C). It also accepts external 12V-2.5A DC power inputs, including high-performance linear supplies for enhanced audio performance. A precisely segmented multi-stage analog power section handles DAC, LPF, and amplifier stages, using up to 14 low-dropout regulators to ensure clean, stable power delivery.

One Device, Multiple Scenarios

FiiO K15 is a highly versatile device that can be used in multiple use case scenarios. This includes using the device as a USB DAC, Wireless Bluetooth DAC, Headphone Amplifier, Network streamer, local playback, and a complete all-in-one solution as well. We are pretty sure the FiiO K15 perfectly fits in every setup!

Fused With Premium Components for High-End Performance

FiiO K15 integrates high-quality components for an extraordinary performance. It features 8 Ruby Film Capacitors + 32 Wafer Resistors: Low noise and temperature stability for consistent performance. The 2 Nichicon 3300µF + 4 ELNA MILIC II + 8 ELNA RA3 Capacitors provide rich sound with enhanced stage depth. It utilises Beryl Capacitors for ultra-low ESR and excellent anti-interference properties. K15 is fused with silver-plated oxygen-free copper wires to ensure minimal signal loss across internal board connections.

Utilises Dual Master Processors For Smooth And Stable Operation

FiiO K15 is equipped with the high-performance multi-core X2000 processor featuring dual XBurst\@2 cores and a micro-core for low-power, high-efficiency audio processing. Additionally, the ESP32-S3 MCU includes a dual-core Xtensa 32-bit LX7 and an ultra-low-power coprocessor clocked up to 240MHz, ensuring seamless system control and snappy user interactions.

Wired or Wireless

Always a stable connection

Meticulously Crafted For Impeccable Aesthetics & Extensive Protection

FiiO K15 showcases a modern blend of square and round aesthetics, reflecting both classic and futuristic styling. Thoughtful touches like tactile knobs, a responsive display, and a heat-dissipating grid structure enhance usability and durability. Extensive protection mechanisms are integrated to detect and address abnormal conditions in real-time, safeguarding your gear and listening experience.

Buttons and Ports Labelled

Accessories to Get You Started

1. AC Power Cord * 1
2. Remote Control * 1
3. XLR4 Decorative Plug * 1
4. Fuse * 1
5. USB Data Cable * 2
6. Headphone Plug Adapter * 1
7. Warranty Card * 1
8. Quick Start Guide * 1