FiiO M17 | Digital Audio Player

FiiO Redefines Audio Excellence with the Powerful and Versatile M17 Portable Desktop-Grade Digital Audio Player

• Features dual 8-channel ES9039PRO DACs
• 3000mW per channel THX AAA-788+ amp
• Qualcomm QCC5124 Bluetooth chip
• 5.99" HD display
• Two power supplies, two volume control modes

Redefining Portable Expectations

The smart desktop-class M17 is an entirely new chapter of FiiO digital audio players. It's 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.

ES9039PRO DAC

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.

THX 788+ Headphone Amp

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, the output power is increased by 225% up to 3000mW per channel with a lower output impedance, allowing it to more effortlessly power all kinds of headphones.

Desktop-Level Features

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.

Desktop-Level Connectivity
Thanks to its larger size, the M17 features a variety of connectivity options allowing for many different convenient uses.

Desktop-Quality Power Supply
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-Tier Heat Dissipation
With exceptional audio quality comes large power consumption, so effective heat dissipation was a large focus when designing 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-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 45m ohms (only 15% of that 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 0.8VRMS 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.

A True Smartphone-Like Experience

Qualcomm Snapdragon 660
it equips the open Android 10 that allows the installation of third-party apps.

Flagship QCC5124 Chip
Bluetooth 5.0 with support for aptX Adaptive Bluetooth reception.

XMOS Receiver Chip
Ultra-low, 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
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.

PEQ Precise Tuning

The PEQ (Parametric Equalizer) function was designed for the M17, which supports 10-band self-defined tuning. On the FiiO Music App, 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.

Physical Digital-Analog Separation

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.

Highly-Optimized Modular Internal Structure

The M17s 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 os PCBs compared to normal in such a limited space.

Design

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.

The M17 features a 7-color RGB ambient light system with extensive customization options. Colors can be set to be either fixed, to follow the audio, or follow a cycle. The brightness of the light can be set to change depending on current power, volume, or temperature. Top and side lights can be controlled separately, allowing you to dial in exactly how you want your lights to look.

Specifications

• SoC: Qualcomm Snapdragon 660
• DAC: ES9038PRO x2
• Amplifier: THX AAA-788+
• Bluetooth: QCC5124
• USB Receiver: XMOS XUF208
• Max Sampling Rate: 32-bit/786kHz, DSD512 (Native)
• Output Power
  • ≥1.5W (16Ω/THD+N <1%)
  • ≥3W (32Ω/THD+N <1%)
  • ≥500mW (300Ω/THD+N <1%)
• Noise Floor: ≤3.5uV (A-weighted)
• SNR: ≥123dB (A-weighted)
• THD+N: ≤0.0007% (1kHz/32Ω)
• Dimensions: 6.17 x 3.48 x 1.1” 
• Weight: 1.3lbs (610g)
• Battery
  • Capacity: 9200mAh
  • Battery life: approximately 10 hours (single-ended), 8 hours (balanced)
  • Charging time: approximately 4.5 hours (with quick charge)
  • Standby: 1,000 hours
• Memory (RAM): 4GB
• Total Storage (ROM): 64GB/ approximately 46GB
• Expansion storage: single micro-SD card slot, theoretical support to up 2TB
• Gain: low/medium/high/headphone mode/enhanced headphone mode (when powered through DC)
• Channel balance: L20~R20 (0.5dB per level)

In the Box

• FiiO M17
• External DC adapter
• Cooling stand with fan
• PET screen protector
• Leather case
• Micro-SD card ejector pin
• USB 3.0 data and power cable
• Aluminum dust plug