Fiio M15

Flagship M15

Android Hi-Res Lossless Smart Portable Music Player

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

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 3^rd gen FPGA clock algorithm, for lower jitter and ultimately a more accurate clock for the DAC.

NDK femtosecond crystal

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.

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.

· PET coated, carbon fiber textured back cover

· 2.5mm/3.5mm/4.4mm headphone outputs

· Concentric round analog potentiometer volume knob

Every side is a beautiful side

· 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

15 hours battery life，

1800 hours standby time

The M15 represents the 5^th 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.

5^th gen classic columnar design

Arched design for a comfortable grip

· 2^nd 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.

A breath of fresh air with high quality music

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.

Sharply dressed and well-equipped inside and out

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

 Online Music、 WiFi Song Transfer Quick and easy

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 do-it-all button

Customizable multifunction key

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）

Specifications