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Astell&Kern AK120 Dual-DAC Mastering Quality Sound Portable System

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Hi-Fi Audio in your Pocket


Experience the phenomenal world of music!

 What is Astell&Kern?

The Astell&Kern is the ultimate portable Hi-Fi audio system

The Astell&Kern is the ultimate portable high-fidelity audio system capable of playing Mastering Quality Sound (MQS), original sound, bit-to-bit, 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 is the way music is meant to be heard.


Equipped with the Wolfson 8740 DAC
Dual DAC, AK120
The AK120 not only meets the standards of Hi-Fi audio, but also utilizes two DACs (digital to analog converters) maximizing the dual-mono set up to completely separate and isolate the left and right audio channels. As a result, the AK120 delivers broader a dynamic range and wider soundstage so that you can enjoy an even more realistic music experience.  Enjoy the great MQS music up to 14 hours, which was made possible by the same ultra-low-power design unveiled with the AK100.
24-bit/192kHz, SNR, THD+N → Hi-Fi Audio Spec




A Touch Equalizer Controlled by a Single Swipe

A Practical EQ Determines the Change in Frequency Response


With the Astell&Kern and a nice set of headphones, audio enthusiasts will appreciate even more various genres of music.  Use the touch interface of the built-in 5-band equalizer to delicately find the tone you desire.  In addition, touch the screen to finely adjust the value of each band.  

Professional Equilizer for the Best Soundstage

The AK120's Pro EQ was created from various genre of music after listening to them for thousands of times which helps to relive the live performance music. As an example, a single track has been listened to over 100 times for a time period of 40 minutes to achieve the best sound possible with this pro EQ setting. A good sound comes from a recorded piece expressed in the way it was meant to be heard. The focus with the Pro EQ feature is to create the soundstage through the sounds. In a quartet performance, the position of each of the 4 individual instrumentalists can be heard clearly. Through countless hours of testing and repeated listening the AK120's Pro EQ has been made. Experience the live soundstage of your music through the Dual DAC and Pro EQ feature of the AK120.

The 5 key performance measures of

Hi-Fi audio

The AK120 MQS Portable System goes beyond the standard Hi-Fi specifications.


The AK120 does not only meet the standards of Hi-Fi audio, but also utilizes two DACs (digital to analog converters), maximizing the dual-mono set up to isolate the left and right audio channels completely separate. In result, it delivers broader dynamic range and wider soundstage, so that you can enjoy even more realistic music.


 THD+N (1kHz 0dB, No load)

THD + Noise (Distortion) over the THD + Noise signal rate, less distortion is heard. The AK120 achieves a 0.0008% (Typ) distortion signal rate.

Signal to Noise Ratio (1kHz 0dB, No load)

SNR (Signal to Noise Ratio) As the signal-to-noise ratio increases, the clearer the sound becomes. AK120’s SNR specification is 113dB.

Crosstalk (1kHz 0dB, No load)

CROSSTALK The higher the number in the crosstalk specification, the higher the isolation in the Left/Right channels develops. The AK120 has a crosstalk specification of -128dB.

Frequency Response (1kHz 0dB, No load)

Frequency Response The frequency response specification of +0.02 to -0.02 in the AK120 provides a clear sound from Bass to Treble.

Jitter (1kHz 0dB, No load)

Jitter With smaller figures representing irregular tremors of the signal waveform, the better the device performs. The AK120 has a Jitter specification of 50ps(Typ).


Total memory

The AK120 is equipped with dual microSD card slots and supports up to 192GB of storage space.
The AK120 comes with 64GB of high-speed internal flash memory and dual microSD memory card slots capable of supporting up to 64GB of memory in each slot. Store up to 192GB of high-resolution audio with the AK120.
Supports Up to 192GB
64GB of Built-in Memory

UI with an Integrated Touch Screen and Control Buttons

The AK120 offers very intuitive user experience through a more robust and sensitive touch screen.
The 2.4 inch touchscreen and the integrated hardware control buttons on the right and left side of the AK120 make setup quick and easy.  Now with an updated and intuitive graphic user interface of the AK120, find your favorite tunes quickly even without taking it out of your pocket.  The curved design of the volume wheel guard provides additional protection to the volume wheel.
Combined Graphic User Interface (GUI) & Physical User Interface (PUI)


The updated GUI offers faster selection of your large library of music. Setting up the desired equalizer is also easy and is simple as a swipe of your fingers. 
The main GUI consists of six (6) key icons to help navigate and play your favorites quickly.  Touching the upper part of the main menu instantly brings you back to the “Now Playing” screen. Access your current playlist in a flash by touching the left side of the “Now Playing” screen. Touching the “Option” icon brings up the other option settings, including the EQ settings.  The dedicated GUI design give easy access of music makes the AK120 a true hi-resolution audio companion.


A Refined Design with an Analog Feel

A brushed aluminum body with superior craftsmanship
The brushed aluminum pores finish represents a deep and refined craftsmanship not traditionally found in a combination.  



More solid and refined design impression of the AK120
The design of the volume wheel protector resembles the bridge of a stringed instrument and hints at the more enriched sound from the AK120.  Luxurious details are not missed at all with the AK120. The red ring wrapped around the volume wheel is a design statement of the Astell&Kern identity and the fine craftsmanship of all metal components reassures the long lasting quality of the Astell&Kern.
The sensitive analog feel of the volume wheel
The Astell&Kern is a digital device with an analog ambiance. The volume wheel also provides analog musical inspirations that are not often found on typical push-button volume controls.
General Specifications  
Model      AK120
Color      Black
Dimensions      2.3" [W] x 3.5" [H] x 0.6" [D] (58.4 mm x 88.9 mm x 15.2 mm)
Weight      5.0 oz (142 g)
Display      2.4" (320 x 240) IPS Touchscreen
Supported Audio Formats      WAV, FLAC, WMA, MP3, OGG, APE, AIFF, ALAC, AAC
Sample Rate      FLAC, WAV : 8kHz ~ 192kHz (8/16/24 bits per sample)
Output Level      1.5 Vrms (No Load)
DAC      Dual Wolfson WM8740 DAC (24bit/192kHz)
Decoding Supports up to 24bit / 192kHz Bit to Bit Decoding
Charging Interface      Micro USB Type-B
Interface USB 2.0, OPTICAL IN/OUT, Headphone Out, USB DAC
Feature Enhancements Software upgrades supported
Audio Performance  
Frequency Response 20Hz to 20kHz +/-0.02dB (24bit 48kHz, No Load)
Signal to Noise Ratio 113dB (1kHz 0dB, 24bit 48kHz, No Load)
Crosstalk  -120dB (1kHz 0dB, 24bit 48kHz, No Load)
THD+N  0.0008% (1kHz 0dB, 24bit 48kHz, No Load)
IMD SMPTE 0.003% (24bit 48kHz, No Load)
Output Impedance  3 ohms 
Clock Source   
Clock Jitter 50 ps
Capacity 2,000 mAh 3.7V Li-Polymer Battery
Continuous Playback Time Up to 14 hours (Standard - MUSIC: FLAC, 16bit, 44kHz, Volume 37, EQ Off, LCD Off)
Charge Time About 5 hours
Built-in Memory 64 GB [NAND]
External Memory  Micro SD (Max 64GB) x 2 
Bluetooth 3.0 / A2DP
Compatible OS Windows 2000 / XP / Vista / 7 / 8 / Mac OSX

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