FiiO M15 Portable Music Player


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Due to the unfortunate fire at the AKM manufacturing facility in Japan, we have a very limited supply of this item. We urge anyone interested in this item to buy it while supplies last. Despite our very best efforts to get these products to customers as soon as possible, the impact of the fire on AKM’s operations may cause shipping delays. The AKM supply volatility will not improve until the end of April 2021.

The M15 is FiiO’s flagship digital audio player (DAP). Featuring a top-of-the-line digital-to-analog converter (DAC), MQA support, Japanese femto crystals, dual-band WiFi, and Qualcomm’s flagship bluetooth chip, the M15 packs a home theater system worth of features into a stylish handheld. 

Blistering Performance

The M15 features the Samsung Exynos 7872, a 2GHz, hexa-core processor that delivers lag-proof, frustration-free file transfers, track playback, and operation. 

The Bleeding Edge

The M15 features not one but two of AKM’s flagship DAC, the AK4499EQ. Capable of supporting sample rates up to 32-bit/768kHz and native DSD512, this 4-channel, 32-bit DAC is at the absolute bleeding edge of decoder technology. 

Silent Sonic Backdrop

With a signal-to-noise ratio (SNR) of 122dB, distortion as low as 0.0004%, and a noise floor as low as 2.1µV, the M15 presents your music on a completely silent sonic backdrop. No noise, no distortion. Nothing but music, plain and simple. 

All Headphones Welcome

Whether you rock a pair of low-impedance IEMs or power-hungry planar magnetics, the M15 can drive them. With a balanced output of 280mW at 300Ω, it can handle any pair of phones you’ve got. 


Would you die a little if we told you that MP3 files deliver just 10% of original studio recordings? That’s one-tenth of the nuance, depth, and richness that the artist intended for you to hear. MQA (Master Quality Authenticated) files, on the other hand, deliver the full, uncompressed sound of the original master recordings in all their richness. The M15 supports this technology, delivering the best version of the music you love. 

Jitter Eliminator

Jitter is this generation’s disc skip--it’s aggravating, intrusive, and could potentially ruin a listening experience. Okay, maybe it’s not as intrusive as disc skip, but it should be avoided at all costs. The M15 uses two custom Japanese femtosecond crystals, correcting drift in the signal timing to as low as -140Bc/Hz @ 1kHz. You can kiss jitter goodbye. 

Wireless Wonder

Dual-band WiFi not only ensures better signal strength and stabler connections; by using a different band it avoids interference with Bluetooth altogether. WiFi and Qualcomm’s flagship Bluetooth chip team up to allow the M15 to work as a Bluetooth player/amp and interact with any other DLNA devices you own.

A Do-Whatever-You-Want Customizable Button

The M15 features a mappable multifunction button, allowing you to customize the M15 to your preferences. Want to switch digital filters with one click? Or change the EQ? Or enter USB DAC mode? This button’s all yours. 



  • DAC: 2 x AK4499EQ 32-Bit

  • Amplifier

    • 4 x OPA1622

    • 4 x OPA1612

    • 2 x PA2211

  • External DAC Functionality

    • Yes, DSD up to 1-bit/2.8224 MHz 

    • DSD128 up to 1-bit/ 5.6448 MHz 

    • DSD256 up to 1-bit/ 11.2896 MHz 

    • DSD512 up to 1-bit/ 22.5792 MHz 

    • PCM up to 32-bit/768 kHz 

  • Audio Resolution

    • DSDNative: 1-bit/ 2.8224 MHz 

    • DSD128: 1-bit/ 5.6448 MHz 

    • DSD256: 1-bit/ 11.2896 MHz 

    • DSD512: 1-bit/ 22.5792 MHz 

    • PCM: 32-bit/768 kHz 

  • Frequency Response

    • 5Hz to 90kHz -3dB (Line Out)

    • 20Hz to 90kHz -3dB (Headphone Out)

    • 20Hz to 90kHz -3dB (Balanced Headphone Out)

  • Impedance

    • 16 to 150Ω (Headphone Out)

    • 16 to 600Ω (Balanced Headphone Out)

  • Gain Settings: High, Low

  • Volume Control: Analog

  • THD+N

    • 0.0004% at 1kHz (Line Out)

    • 0.0005% at 1kHz (Headphone Out)

    • 0.0006% at 1kHz (Balanced Headphone Out)

  • Audio Power Output

    • 285mW at 16Ω (Headphone Out)

    • 405mW at 16Ω (Headphone Out)

    • 215mW at 32Ω (Headphone Out)

    • 490mW at 32Ω (Headphone Out)

    • 31mW at 300Ω (Headphone Out)

    • 70mW at 300Ω (Headphone Out)

    • 420mW at 16Ω (Balanced Headphone Out)

    • 370mW at 16Ω (Balanced Headphone Out)

    • 635mW at 32Ω (Balanced Headphone Out)

    • 800mW at 32Ω (Balanced Headphone Out)

    • 120mW at 300Ω (Balanced Headphone Out)

    • 280mW at 300Ω (Balanced Headphone Out)

  • Signal to Noise Ratio

    • >121dB (Line Out)

    • >121dB (Headphone Out)

    • >119dB (Headphone Out)

    • >122dB (Balanced Headphone Out)

    • >118dB (Balanced Headphone Out)

  • Custom Equalizer: Yes


  • CPU

    • 2GHz ARM Cortex A73 Dual-Core

    • 1.6GHz ARM Cortex A53 Quad-Core

  • RAM: 3GB

  • Operating System: Proprietary

  • Internal Storage Capacity: 64GB

  • Maximum Storage Capacity: 2TB

  • Flash Media Slot: 1 x microSDXC

  • Display: 5.15" LCD (1440 x 720 Resolution)

  • Operation Method: Physical Buttons, Touchscreen, Volume Wheel

Media Support

  • FM TUner: No

  • Video Recording: No

  • Video Playback: No

  • Formats Supported: DSD64/128/256 (.iso, .dsf, .dff), DST ISO, DXD, APE Insane/FAST/Extra High/High/Normal, Apple Lossless, AIFF, FLAC, WAV, WMA Lossless, MP3, OGG, WMA, AAC, and more


  • Wireless: Bluetooth 5.0

  • Bluetooth Codecs: aptX, aptX HD, LDAC, LHDC, SBC

  • Built-In Mic: No


  • Battery

    • 1 x Built-In Rechargeable Lithium-Polymer Battery 7490 mAh

    • Providing up to 15 Hours per Charge for Audio Playback (3.5 mm)

    • Providing up to 9 Hours per Charge for Audio Playback (2.5 mm / 4.4 mm)

    • Providing up to 1800 Hours per Charge for Standby

  • Charging Time: 3.5 Hours


  • Dimensions (W x H x D): 3.0 x 5.3 x 0.7" (75.0 x 134.0 x 18.0mm)

  • Weight: 10.83oz (307g)

Packaging Info

  • Package Weight: 2.475lb (1.12kg)

  • Box Dimensions (LxWxH): 8.5 x 6.2 x 2.7" (21.59 x 15.78 x 6.85cm)

Apos Promise

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