Flagship M15

Android Hi-Res Lossless Smart Portable Music Player

AK4499EQ*2 | Samsung Exynos 7872 |

XMOS USB chip | 768kHz/32bit，DSD512 |

  3rd-gen FPGA technology | 2nd-gen All to DSD 

No nonsense, all high performance

Dual AK4499EQ flagship DACs

The AK4499EQ is AKM’s flagship third generation DAC. With four channels per DAC chip, a current output architecture, and being manufactured on the LSI special process, the AK4499 has impressive performance. The DAC chip is capable of decoding up to 768kHz sampling rate and native DSD512, and has a signal-to-noise ratio up to 140dB and THD+N as low as -124dB.

XMOS XUF208 USB chip

Supports up to

768kHz/32bit，DSD512

When in USB DAC mode, the M15 utilizes professional grade XMOS XUF208 USB chip, supporting up to 768kHz/32 bit and DSD512 input.

Qualcomm CSR8675 Bluetooth chip

Supports two-way LDAC lossless

Bluetooth

When the M15 is used as a Bluetooth receiver, Qualcomm’s CSR8675 flagship Bluetooth chip comes into play for complete Bluetooth audio format support as well as enabling lower latency and faster transfer speeds.

Bluetooth transmission formats：SBC, aptX, aptX-HD, LDAC, HWA

Bluetooth reception formats：SBC, AAC, aptX, aptX-LL, aptX-HD, LDAC

Exynos 7872 processor

Most powerful SoC among HiFi DAPs

· Dual A73 cores + Quad A53 cores

· 3GB RAM + 64GB storage + 2TB expansion

· Supports 2.4/5GHz dual-band WiFi

NDK femtosecond crystal

The two custom Japanese NDK femtosecond crystals in the M15 allow for a phase noise as low as -140dBc/Hz @ 1kHz offset. These crystals work in conjunction with the 3rd gen FPGA clock algorithm, for lower jitter and ultimately a more accurate clock for the DAC.

FiiO 3rd gen FPGA

Present in the M15 is FiiO’s self-developed 3rd generation FPGA with more advanced algorithms, more accurate clocks, and even further reduced jitter.

Parts worthy of a flagship

Ultra-low noise resistors：high precision 0.1% tolerance, low temperature drift, low noise film resistors

Dedicated audio capacitors：4 low-loss polymer tantalum capacitors + 4 Panasonic electrodeless film capacitors + 8 small film capacitors

Ample power reserves：28 220uF low-loss polymer capacitors, 5 100uF high-voltage capacitors

Impressive LPF configuration：Eight 4-way independent Panasonic metallized film capacitors

Cumulation of technology advancements

· 8-layer ultra-thick immersion gold PCB

Greatly improves space utilization, and ensures no interference between digital and analog circuits

· Independent shielding for digital and analog circuits + special absorbant material

For further improved shielding against interference, and pro-grade material specifically to absorb 2.4GHz waves further helps

· Customized thermally conductive silicone, graphene, and copper-nickel-zinc alloy heatsinks

Effectively conducts internally-generated heat to the outer body, which allows the heat to dissipate into the air

Sharply dressed and well-equipped inside and out

The M15 adopts a fully balanced architecture to ensure every last detail can be heard without sacrificing bold dynamics. Inside this balanced architecture are: 2 all-new high-precision, low-noise, low temperature drift TI OPA2211 op-amps for the low-pass filter, 4 OPA1612 for IV conversion, and 1 OPA1622 for amplification of each channel.

Handle it all with active servo power technology

For the first time, FiiO has implemented “active servo power” technology to the final amplification stage, which allows the power output to change depending on the user’s preferred settings. When paired with IEMS, you can set the M15 to be optimized for minimal noise as possible. But if you want to use your hard-to-drive 300 ohm headphones, you can enable Big Driver mode to turn your M15 into a power monster capable of pushing such headphones to their limits.

Monstrous power output

comparable to desktop amps

Under a 32-ohm load，single-ended output power is 490mW and balanced output power up to 800mW

Under a 300-ohm load，single-ended output power is 70mW and balanced output power up to 275mW

A quiet listening background as black as the universe

Noise floor as low as 2.1μV

Distortion as low as 0.0004%

S/N Ratio up to 122dB

15 hours battery life，

1800 hours standby time

· 7490mAh high energy density lithium cobalt oxide battery

· Custom FPC and Japanese SMK battery connector

· Supports QC2.0, MTK PE, and USB PD fast charging

QC2.0/MTK PE

Dual Quick Charging Technology

7490 mAh

Ultra-high Capacity Battery

1800 Hours

Deep Sleep Time

15 Hours

Battery Life

5th gen classic columnar design

Arched design for a comfortable grip

The M15 represents the 5th generation of the basic classic columnar design that defined FiiO’s previous models, such as the Q1 Mark II/K3/K5 Pro. The left and right sides are made concave to facilitate gripping the device, and the overall arced design gives the M15 totally unified design.

Analog potentiometer volume knob

Pro-audio grade volume adjustment

ADC curve reconstruction as employed in the M15’s volume adjustment solves problem traditionally associated with analog potentiometers, such as volume imbalance between the left and right channels.

The brightness of the pulsar light can be also adjusted with the volume knob, making each turn of the knob both a visual and auditory delight.

Corning Gorilla Glass

5.15 inch/18:9

borderless screen

10-finger multi-touch

86.0%

312PPI

High density display

screen-to-body ratio

Gestures operation

16.7M

5.15inch

1440×720

million colors

High resolution

Large screen display

Every side is a beautiful side

· PET coated, carbon fiber textured back cover

· 2.5mm/3.5mm/4.4mm headphone outputs

· Concentric round analog potentiometer volume knob

A do-it-all button

Customizable multifunction key

一Add to favorites with just one click

一 Shuffle to the next track with just one click

一 Delete the song currently playing with just one click

一 Switch filters with just one click

一 Change EQ with just one click

一 Enter USB DAC mode with just one click

一 Enter Bluetooth decoding mode with just one click

...

A breath of fresh air with high quality music

· 2nd gen global All to DSD functionality with significantly reduced power consumption

When All to DSD is turned on, the various kinds of harmonic distortion in music are more uniformly distributed for a more comfortable and fatigue-free experience.

Supports MQA 8x decoding

The M15 supports decoding MQA tracks encoded in the 8x format for master-level sound quality, just as if you were actually in the recording studio.

Not just a single-trick pony

Versatility in spades

· Supports DLNA, AirPlay, Wi-Fi music transfer

· Supports FiiO Link, allowing any smartphone

  to control the M15

· One click to display the track currently playing

· Karaoke playlist management

· Double-tap to wake

· Three finger screenshot

The king of different modes

Whether online or local playback, wired or wireless audio, Bluetooth or Wi-Fi music, Bluetooth transmission or reception, USB output or USB decoding - the M15 can easily switch between all of these playback modes any time you want, and provide you an excellent experience in all modes.  

Pure music mode

Enjoy music undisturbed, a pure listening experience;

Android Mode

Online Music、 WiFi Song Transfer Quick and easy 

Bluetooth decoding

Capable of ｒeceiving any devices through Bluetooth, choosing ways for your preference to enjoy music.

USB decoding

 Suitable for desktop, listening to music in computer also have good sound quality

Full digital audio format support

Finding new joy in music

MP3/OGG/AAC/AIFF/WMA/APE/FLAC/ALAC/

WAV/DXD/DSD/iSO/MQA

Turn on car mode for lossless music on the road

Acts as a USB DAC with your computer 

Can be paired with a smartphone, EH3 NC, or EW1

Paired with the DK1 base/USB audio output to external DAC

Exceptional packaging for an extraordinary device

North American Black Walnut wood box

The collectible North American Black Walnut wood box the M15 comes in give the player a flair befitting of its status. And to ensure your M15 looks pristine for years to come, included are tempered glass screen protectors.

Specifications

CPU：Exynos 7872

DAC Chip：AK4499EQ*2

Supported rates：768kHz-32bit，DSD512 native

USB：Type C USB2.0

Screen：5.15 inch 1440×720 borderless 10-point touch display 

Dimensions：134mm×75mm×18mm (excluding volume knob)

Weight：approx. 310g

Charging time：＜3.5h

Battery：7490mAh high-voltage fast-charging lithium ion

Battery life：15 hours

Output Power 1: 490mW (32Ω/single-ended/big driver mode)

Output Power 2: 70mW (300Ω/single-ended/big driver mode)

Output Power 3: 800mW（32Ω/balanced/big driver mode）

Output Power 4: 280mW（300Ω/balanced/big driver mode）

Frequency Response: 20Hz~90kHz（-3dB）

Signal to Noise Ratio: ≥122dB（A-weighted）

Noise Floor：PO＜2.1μV(A-weighted); BAL＜4μV(A-weighted)

Output Impeda nce: ＜1.1Ω（32Ω load）

THD+N: ＜0.0004%（1kHz/10kΩ）