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Acoustic Recearch AR-M2


The AR-M2 is a high resolution portable music player with a custom android user interface offering a familiar user experience. The UI is easy to use and gives almost instant access to your favourite music. Featuring a high quality DAC and other reference grade internals the AR M2 can power even the most demanding headphones.

The revolutionary Acoustic Research M2 Music Player brings the music listening to a whole new level. Through the flagship grade Burr-brown PCM1794A DAC and best-in-class high slew rate headphone amplifier, it is capable to unleash the full potential of your high resolution music clips through high end headphones without the need for an external headphone amplifier. This is the all-in-one product you need for genuine audiophile music experience on-the-go.


  • Genuine audiophile oriented music-only portable music player

  • Comprehensive high resolution media support (WAV, AIFF, FLAC, ALAC, APE, DSD, and DXD)

  • Audiophile oriented flagship class Burr-Brown PCM1794a DAC

  • Unleash the full potential of high end headphones with best-in-class built-in headphone amplifier

  • 64GB built-in memory plus flexible storage expansion through Micro SDXC

  • Up to 9 hours of continuous audiophile-grade high resolution music playback


Key Features of the M2

- Flagship Class Burr-Brown PCM1794A Current Output DAC

- Future-proof High Performance Quad Core Processor

- Unique high-current high-output Class A based amplifier

- Audiophile-grade analogue volume ALPS potentiometer

- Line-out to feed a Hi-Fi system

- Phenomenal Signal to Noise Ratio & Dynamic Range


Quote: Arex Li - Designer of the M2

"We started with raw audio performance, then a powerful headphone amp and only then did we add the features"

- 5 inch OGS HD IPS colour display screen

- Easy-to-use Multi-touch “MusicSurf” GUI 

- Android OS base, tuned for pure music

- Pure Lossless Audio Path bypassing Android OS totally

- High capacity battery 4000 mAH - 9hrs average battery life

- Duralumin metal housing - tough and good-looking

- Unlimited expansion via Micro-SXCD cards

- Full Wi-Fi streaming capability


Remarkably compact for a high-end player

136.5 h x 71.1 w x just 15 mm deep

Weight 245 gms



Flagship DAC Performance Ratings

Burr-Brown PCM1794A Current Output DAC

2 x better than Burr-Brown PCM1795

2.8 x better than Cirrus CS4398 (PCM mode)

4 x better than Cirrus CS4398 (DSD mode)

2.8 x better than Wolfson WM8740 (Dual DAC mode, 1-ch per DAC)

4 x better than Wolfson WM8740 (Single DAC mode, 2-ch per DAC)



High-power high-precision current feedback headphone amplifier

- High-power headphone amplifier

- Power output (THD < 0.01%)

- 32 ohms 400mW + 400 mW 

- 300 ohms 43mW + 43mW

- Ultra-low-distortion at max output <0.01%

- Supports 16 ohms to 600 ohms headphones/earphones

- Ultra high slew-rate, genuinely responsive to Hi-Res contents



Future-proof High Performance Quad Core Processor

Plays virtually all Hi-Res audio formats including ALAC, FLAC, WAV, AIFF, 

Plus DSD64/DSD128 & DXD

Custom developed Hi-Res DSP processing

Upgradeable to support other new formats


Wi-Fi wireless audio

NAS with DLNA support

Online music service Android APKs can be loaded

Spotify tested. Tidal & Qobuz in testing

Not a throwaway product

With a future-proofed processor capable of being upgraded to handle new formats, strong metal construction and virtually unlimited memory expansion, the M2 is built for a long-life.



Virtually unlimited expansion

64GB built-in memory

Micro-SDXC expansion Up to 200GB

USB OTG media playback support (TBD)

USB OTG Thumb Drive

USB Harddisk


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