Astell Kern

Astell Kern AK120 Portable Hi-Fi Sound System

$1,299.00
  • Astell Kern AK120 Portable Hi-Fi Sound System

Astell Kern

Astell Kern AK120 Portable Hi-Fi Sound System

$1,299.00

Mastering Quality Sound (MQS) is an acronym of collective lossless & high-resolution audio source formats, typically in 24-bit/44 to 192kHz of bit/sampling rates. Because MQS delivers about 6.5 times more detail than a conventional CD format (16bit/44.1kHz), listeners can enjoy a better and a more realistic sound quality.


24-bit/44 to 192kHz is the music industry norm used in the mastering process during sound production. However, the result of high resolution music files has to be compressed down to 16bit/44.1kHz so it can be stored into a single CD due to the memory storage shortcomings (~700MB). To produce the MP3 format, the high-resolution audio is compressed even further to 128 to 320kbps for the convenience of file size. These compressions remove the enormous amount of the details of the original recording because of memory storage limitations and listeners will never be able to hear the details.


Source frequency analysis comparison


When comparing the frequency of each digital audio format, data loss is even more visible. MP3 formats can only reproduce frequencies up to 16kHz. However, WAV formats sampled in 48kHz can be reproduced up to 22kHz and higher. Frequency rates of MQS files sampled in 44 to 192kHz can be reproduced even further than the WAV format.


Source frequency analysis comparison


When comparing the frequency of each digital audio format, data loss is even more visible. MP3 formats can only reproduce frequencies up to 16kHz. However, WAV formats sampled in 48kHz can be reproduced up to 22kHz and higher. Frequency rates of MQS files sampled in 44 to 192kHz can be reproduced even further than the WAV format.


Meets the Standards of Hi-Fi Audio



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

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

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

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


Equipped with the Wolfson 8740 DAC


AK120 DAC & Amp Creates a Dual Mono System that separates Left & Right Audio Channels
From input to output, the design of the dual Wolfson WM8740 DAC implemented in the Astell&Kern AK120 independently separates the left and right audio channels, creating a true Dual-Mono audio output system.
When the analog audio signal passes through the dual Wolfson WM8740 DAC, not only does the AK120 use the Ultralow Distortion and Noise Technology, but executes the optimal digital noise reduction technology combined into the analog amp. The dual DAC built-in to the AK120 forms a dual-monaural audio ecosystem that brings wider soundstage, channel separation, and an overall richer sound.


External DAC Support



  • Use the AK120 as an external DAC through the USB port.

  • With the Astell&Kern AK120, the Wolfson WM8740 chips can also be used as an external DAC through the USB terminal.

  • Enjoy more lively sound from the music files stored through a variety of sources, including computers and car audio systems.

  • The optical IN port of the AK120 can also be used as an external DAC.


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.

  • 4 generations of MQS Albums supported on microSD cards

  • The additional memory card slot holds an important point. 24-bit album recordings will soon be released with music files stored in microSD memory cards. For a mainstream album, LP (vinyl) records would be considered as first generation, second generations are cassette tapes, and Compact Discs (CDs) is the third and current generation. Fourth generation albums are considered as MQS albums that are released in high capacity microSD memory cards. Comfortably enjoy two albums at once through the dual memory card slots of the Astell&Kern.


- The Astell&Kern supports MQS high-resolution music stored on microSD cards.


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.
The world reknowned master of high-end speaker systems, CEO of Metal Sound Designs: Kuk-il Yu, re-creates a high-resolution miracle only felt from the AK120.
CEO of Metal Sound Design, Kuk-il Yu, is a 20 year expert in the Hi-Fi audio field, specializing in speakers designed from metal since 1993.


With an extraordinary sense of design and listening, Yu has been designing and developing Hi-Fi audio loud speaker systems over last two decades. Through a combination of metal and hi-fi speaker design, he is the five time award winner at CES and the Red Dot Design Award. He has been colloborating with the world's leading manufacturers of German speaker systems, Accuton, and was given title "Meister" since 2004.


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) and 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.