Astell & Kern - AK120 High-resolution DSD capable portable music player

Astell & Kern



Product No.:
S AK120
UPC: 821566011992
EAN: 8809340825418

Portable DAP (Digital Audio Player)

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The Astell&Kern is the ultimate portable high-fidelity audio system capable of playing Mastering Quality Sound (MQS) from music mastering studios. MQS refers to all of the high resolution digital music recording studio formats up to 24-bit/ 44 – 192kHz. MQS delivers vast amounts of better music experience because MQS delivers 6.5 times of the detailed information in the same track.

Astell&Kern natively supports MQS (24-bit / 44 - 192kHz) which is the closest to the original sound that the original recording artist intended. Mastering Quality Sound (MQS) is an acronym of collective lossless & high-resolution audio source formats that typically comes encoded with 24bit, 44 to 192kHz of bit/sampling rates. Since MQS delivers about 6.5 times more detail than a conventional CD (16bit/44.1kHz), listeners can enjoy more a realistic music experience.

For additional information:

Manufacturer’s Product Page


General Specifications

  •     Display: 2.4inch QVGA (320 x 240) IPS Touchscreen
  •     Supported Audio Formats: WAV, AIFF, FLAC, ALAC, APE, MP3, AAC, WMA, OGG, DSD
  •     Sample rate: WAV, AIFF, FLAC, ALAC : 8kHz ~ 192kHz (8/16/24-bits per sample)
  •     Output Level: L: 1.5Vrms + R: 1.5Vrms (Condition No Load)
  •     DAC: Wolfson WM8740 24-bit DAC (High-End Audio DAC) x2
  •     Decoding: Supports up to 24-bit / 192kHz Bit to Bit Decoding
  •     Charging Interface: Micro USB Type-B
  •     Interface: USB 2.0, OPTICAL IN/OUT, Headphone Out
  •     Dimensions: 2.33 ”(59.2 mm) [W] x 3.50 ”(89 mm) [H] x 0.57 ”(14.4 mm) [D]
  •     Weight: 5 oz (143 g)
  •     Feature Enhancements: Firmware upgrades supported

Audio Performance

  •     Frequency Response: ±0.02dB (Condition: 20Hz~20kHz) / ±0.2dB (Condition: 10Hz~70kHz)
  •     Signal to Noise Ratio: 113dB (1kHz 0dB, 24-bit 48kHz, No Load)
  •     Crosstalk: -128dB (1kHz 0dB, 24-bit 48kHz, No Load)
  •     THD+N: 0.0008% Typ (1kHz 0dB, 24-bit 48kHz, No Load)
  •     IMD SMPTE: 0.0005% (24-bit 48kHz, No Load) 800Hz 10kHz (4:1)
  •     Output Impedance: 3ohm

Clock Source

  •  Clock Jitter: 50ps (Typ)


  • Capacity: 2,350mAh 3.7V Li-Polymer Battery
  • Continuous Playback Time: Up to 14 hours (Standard - MUSIC: FLAC, 16-bit, 44kHz, Volume 37, EQ Off, LCD Off)
  • Charge Time: About 6.5 hours


  •     Built-in Memory: 64GB [NAND]
  •     External Memory: microSD (Max 64GB) x2


  •     Supported OS: Windows XP, Windows Vista,7,8 (32/64bit), MAC OS X 10.6.5 and up



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