Portable Desktop-Class Player

* Pictures are for reference only. The actual product may vary.

Dual ES9038PRO | Dual THX AAA 788+ | Dual power supplies

2 volume control modes|Qualcomm QCC5124 | XMOS XUF208

Supercapacitor | 5.99 inch incell display|5 audio output interfaces

Dual USB Type C connectors | 9200mAh battery | RGB ambient light

Desktop-caliber internals

High-end TI OPA2211 op-amp


A voltage noise as low as 1.1nV@1KHz and THD+N of -136dB results in extremely clean amplification.





470mF DMF supercapacitor


Equivalent to 10,000 47uF tantalum capacitors and with very low ESR of 45mΩ (only 15% of that of tantalum capacitors), providing a solid foundation for a large power supply.





Ultra-low noise LT3045 LDO


An ultra-low noise, ultra-high PSRR low-dropout voltage linear regulator featuring Linear Technology's LDO architecture an extremely low RMS noise of 0.8μVRMS in the 10Hz-100kHz frequency band for stable, clean power to the DAC chip.






NDK femtosecond crystal oscillator

Provides a high-precision, low-jitter unified clock source for the entire audio circuit.

Desktop-level connectivity

Thanks to its larger size, the M17 features a variety of connectivity options allowing for many different convenient use cases:

Redefining portable expectations

The smart desktop-class M17 is an entirely new chapter of FiiO digital audio players. Its desktop-grade DAC, amplification, power supply, etc. give it the output power and sound quality to rival and perhaps even surpass highly-regarded desktop systems – but in a portable package. Let the M17 redefine what is possible with portable audio players.

Physical digital-analog separation

For reduced interference

Within the M17 are 17 PCBs with immersion gold finish, with the analog and digital sections physically separated by being on two different boards to reduce interference between the two portions. 7 high-conductivity copper alloy shields also provide shielding to greatly reduce internal and external electromagnetic interference on analog audio signals within the M17.

The volume can be adjusted either using an analog potentiometer knob or using buttons. Quickly and easily go through 120 levels of volume through either method.

Press or twist to enjoy

With desktop DAC


USB/coaxial output+DAC

With hard drive storage


DC+USB2.0+hard drive+headphones

With Bluetooth headphones


Bluetooth transmitter+Bluetooth headphones

Coaxial decoding

The M17 features a seven-color RGB ambient light system with extensive customization options. Colors can be set to be either fixed, to follow the audio, or to follow a cycle. The brightness of the ambient light can be set to change depending on the current power, volume, or temperature. And finally, the top and side ambient lights can even be controlled separately, allowing you to dial in exactly how you want your dazzling lights to be.

Radiant RGB ambient light

  Knob breathing light Side ambient light
Brightness Follow volume Follow volume
Follow temperature Follow temperature
Follow battery Follow battery
customize customize
Working status Breathing Breathing
Always on Always on
Off Off
Charging status Breathing Breathing
Always on Always on
Off Off
Color Follow volume Follow volume
Loop Breathing Loop Breathing
Customize Customize
Follow Audio
Bluetooth receiving SBC:Blue
aptX/aptX LL:Purple
Local playback LQ:Blue
USB DAC ≤48K:Blue

SoC: Qualcomm Snapdragon 660

DAC: ES9038PRO*2

Amplifier: THX AAA 788+

Bluetooth: QCC5124

USB receiver: XMOS XUF208

Crystal oscillator: NDK femtosecond crystal oscillator*2

Output power:≥1.5W(16Ω / THD+N<1%)
                 ≥3W(32Ω /THD+N<1%)
                 ≥500mW(300Ω /THD+N<1%)

Noise floor:≤3.5μV(A-weighted
THD+N:     ≤0.0007%(1kHz/32Ω)

Operation modes: Android /Pure music/USB DAC/Bluetooth receiver/AirPlay/SPDIF RX

Dimensions: approx. 156.4*88.5*28mm

Weight: 610g

Display: 5.99 inch(1080*2160)incell touchscreen display

Charging: Supports QC3.0, QC4.0, PD2.0, and PD3.0 quick charge

Battery capacity: 9200mAh

Battery life: approx. 10 hours (single-ended), 8 hours (balanced)

Charging time: approx. 4.5h (with quick charge)

Standby: 1000h

Volume control: potentiometer knob or button controls

Memory (RAM): 4GB 

Total storage/user available (ROM): 64GB/approx. 46GB

Expansion storage: single micro-SD card slot, theoretical support up to 2TB  

Gain: low/medium/high/headphone mode/Enhanced over-ear headphone mode (when connected to DC)

Channel balance: L20~R20 (0.5dB per level) 

Recommended headphone impedance: 16~150Ω (SE output)/16~300Ω (BAL output)

M17 Specification parameters

A true smartphone-like experience

Qualcomm Snapdragon 660


It equips the open Android 10 that allows installations of third-party apps (no SRC limit at all).

Flagship QCC5124 chip

Bluetooth 5.0 with support for aptX Adaptive

Bluetooth reception: SBC, AAC, aptX, aptX-LL, aptX-HD, aptX Adaptive, LDAC、LHDC

Bluetooth transmission: SBC, AAC, aptX, aptX-HD, LDAC

XMOS receiver chip


ultra-low latency, supports up to DSD512 and 32-bit/768kHz


Gravity sensor


screen can be automatically rotated like a smartphone thanks to the gyroscope


Extremely fast transfer


with USB 3.0 writing speeds can hit up to 100M/s, allowing file transfers to complete within minutes or even seconds


MQA  supported


 supports MQA unfolding for master-level sound


Supports Roon Ready


Roon tested with high proficiency in managing related local files and streaming playback.

The M17's design took 1.5 years to complete, going through 6 major design iterations with 12 rounds of internal structural design optimization. The result is a device that makes excellent use of its internal space. Within the M17 are carefully stacked analog and digital boards with thoughtful use of stainless-steel hexagons – which allowed FiiO to stuff nearly twice the surface area of PCBs compared to normal in such a limited space.

Highly-optimized modular internal structure

· External DC adapter

· Cooling stand with fan

· PET screen protector with oleophobic layer (pre-applied)

· Leather case

· micro-SD card ejector pin

· USB 3.0 data and power cable

· Aluminum dust plug

A first-rate premium experience

Desktop-class amplification also plays an important role in the M17. FiiO and THX jointly developed the exclusive THX AAA 788+, an upgraded version of the original op-amp. Compared to the original, output power is increased by 225% up to 3000mW per channel with a lower output impedance – allowing it more effortlessly power all kinds of headphones.

Desktop-class THX 788+ headphone amp

The massive 9200mAh battery allows for a battery life up to 10 hours on the M17. It can be charged either through USB or through DC in from an external AC adapter


Battery capacity: 9200mAh | Charging time: 4.5 hours | Charging protocols: QC4.0+PD

Battery life: 10.6 hours (single-ended), 8.6 hours (balanced)

Immense 9200mAh battery

A larger screen allows you to more easily enjoy stunning visuals. Let your eyes feast upon an upgraded 5.99 inch, 1080*2160 FHD+ 18:9 high-definition incell display.

Bigger screen for a brighter sheen

The left and right audio channels each contain a desktop-class, 8-channel ES9038PRO flagship DAC. This means that each audio channel has 8 parallel outputs summed together for superior resolution and minimal distortion for extremely pure audio reproduction.

Desktop-league DAC ES9038PRO

Desktop-grade gain

Under battery power, there are 4 gain levels: low, medium, high, and headphone mode. When under DC mode, the Enhanced over-ear headphone mode gain is unlocked, with a truly desktop level of amplification gain. In balanced output, gain can get as high as 16dB – allowing the M17 to easily drive most headphones.


overall gain

MAX. Output Power(PO) MAX. Output Power(PO)

Low Gain




Medium Gain




High Gain




Over-ear headphone mode





over-ear headphone mode




With exceptional audio quality comes large power consumption, so effective heat dissipation was a large focus when designing the M17.  Not only are "H" type heat dissipation and VC liquid cooling technologies adopted, the M17's 151g unibody aluminum alloy frame also effectively transfers heat out of the device. Finally, the cooling fan stand also further makes sure heat is rapidly transported away.

Desktop-tier heat dissipation

The M17 contains two power supplies – a battery power supply and a power supply powered by external DC power. The battery power supply allows you to use the M17 in situations where there is no access to a power outlet. Under DC power supply, voltage in the analog circuit is increased by 35% up to 11.5V compared to under battery power supply; and the battery is kept healthy since it is not used in this mode.

Desktop-quality power supply

The futuristic, seamless, CNC-finished aluminum unibody design evokes a sense of technological wonder. The mech-inspired sharp lines of the body, buttons, and atmospheric lights give the M17 a bold and charismatic aura.

7th-gen mech design

10-band PEQ precise tuning
Born for good sound

The PEQ (Parametric Equalizer) function was designed for the M17, which supports 10-band self-defined tuning. On the FiiO Music App in the M17, users can self-adjust the frequency, gain level, Q value, etc., achieving more accurate frequency response among every frequency range while ensuring high-fidelity sound quality. It supports up to 192kHz/24bit under PEQ style.


*Enable PEQ through the FiiO Music Lab. After enabling, PEQ would replace the default EQ, of which each frequency band can be self-defined.