Astell&Kern AK120 II Portable High Definition Sound System (Silver)

Astell&Kern AK120 II Portable High Definition Sound System (Silver)

Astell&Kern AK120 II Portable High Definition Sound System (Silver)

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Product Highlights

  • Bit-to-Bit Mastering Quality Sound (MQS)
  • Cirrus Logic CS4398 x 2 (Dual DAC)
  • 5.6 MHz DSD Support
  • MQS Wireless Streaming
  • 3.3" WVGA AMOLED Full Touchscreen
  • 128GB Internal Flash Memory
  • 128GB microSD Card Slot
  • 10-Band EQ
  • Integrated Volume Wheel
  • Brushed Aluminum Body
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Astell&Kern AK120 II overview

  • 1Description

The silver AK120 II Portable High Definition Sound System from Astell & Kern is a pocket-sized audio system capable of studio Mastering Quality Sound (MQS) support and playback. As a high-definition digital music format, MQS delivers distortion-free sound without data loss by operating at 24-bits and sampling at a rate from 96 to 192 kHz. MQS sources are commonly saved as a lossless 24-bit WAV or FLAC files during mastering. The AK120 II also supports 5.6 MHz DSD playback by converting/downsampling to 176 kHz PCM.

The AK120 II has an integrated dual-channel Cirrus Logic CS4398 DAC and balanced output to provide exceptional sonic quality and detail. It can also be used as an external DAC when connected to a Mac or Windows computer via USB. Additional DAC support for CD player or another digital device via optical DAC.

The 3.3" AMOLED touchscreen provides smartphone-style control over playback, while the brushed aluminum body and volume wheel provide a smooth analog feel. The built-in battery recharges via USB and lasts for up to 12 hours of playback. The AK120 II ships with a protective case and micro-USB cable.

MSQ Streaming
Wirelessly download and stream music from your Mac or Windows computer via a Wi-Fi network. Firmware updates are available immediately from your wireless network. For MSQ streaming, the Astell & Kern MQS Streaming Server software must be installed on your Windows or Mac computer with a shared folder
Storage Space
Save high-definition lossless music to the 128GB internal flash memory or to the MicroSD card slot supporting 128GB for expanded storage, allowing you to store a maximum of 256GB of high definition lossless music
Built-in Rechargeable Battery
The built-in rechargeable lithium-polymer battery has a capacity of 3,150mAh and can be recharged via USB. Listen continuously for up to 12 hours on a charge
High Output Impedance
Headphone Output: up to 2 Ohms
Balanced Output: 1 Ohm
10 Band EQ
Extended frequency control with a 10-band graphic EQ in .5 dB increments. In addition, multiple user EQs are supported so that users may create custom EQs to fit each music genre and change them whenever desired.
Aluminum hairline and diamond cut finish. The knurled volume knob is wrapped in a guard for secure protection
In the Box
Astell&Kern AK120 II Portable High Definition Sound System (Silver)
  • Micro-USB Cable
  • Protective Carrying Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Astell&Kern AK120 II specs

    Audio Performance
    Frequency Response Unbalance & Balanced: 20 Hz to 20 kHz ±0.023 dB
    Unbalance & Balanced: 10 Hz to 70 kHz ±0.3 dB
    Signal to Noise Ratio Balanced: 117 dB @ 1kHz Unbalanced: 116 dB @ 1 kHz
    Crosstalk Balanced: 135 dB @ 1 kHz
    Unbalanced: 130 dB @ 1 kHz
    THD + N Balanced: 0.0005% @ 1 kHz
    Unbalanced: 0.0007% @ 1 kHz
    IMD SMPTE Balanced: 0.0003% 800 Hz 10 kHz (4:1)
    Unbalanced: 0.0004% 800 Hz 10 kHz (4:1)
    Output Impedance Balanced Out 2.5 mm: 1 Ohm
    Phones 3.5 mm: 2 Ohms
    General Specifications
    Display 3.31" WVGA (480 x 800) AMOLED Touchscreen
    Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE (Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
    Sample Rate FLAC, WAV, ALAC, AIFF: 8 to 192 kHz (8/16/24-bits per sample)
    DSD64: 1-bit 2.8 MHz Stereo
    DSD128: 1-bit 5.6 MHz Stereo
    Output Level Balanced: 2.3 Vrms (condition no load)
    Unbalanced: 2.1 Vrms (condition no load)
    DAC 2 x Cirrus Logic CS4398 (dual DAC)
    Decoding Support up to 24-bit/192 kHz (bit-to-bit decoding)
    Input USB Micro-B Input: For charging & data transfer (Windows & Mac)
    Connection Mode: MTP (Media Device)
    Outputs Balanced Out: 2.5 mm (only 4-pole supported)
    Phones: 3.5 mm
    Optical Out: 3.5 mm
    Wi-Fi 802.11 b/g/n (2.4 GHz)
    Bluetooth V4.0
    Clock Sources Clock Jitter: 50 ps (typical)
    Battery 3,150 mAh 3.7 V Lithium-ion polymer (LiPo) battery
    Memory Built-in Memory: 128 GB NAND
    External Memory: 1 x microSD (Max 128 GB)
    Supported Operating System Windows XP, Windows 7,8 (32/64-bit)
    Mac OS X 10.7 and up
    Body Material Aluminum
    Dimensions (WxHxD) 2.2 x 4.6 x 0.6" / 5.5 x 11.8 x 1.5 cm
    Weight 6.2 oz / 176.9 g
    Packaging Infobfbfuuaexdxqsrdcrseybubruvxbzsttdfr
    Package Weight 1.3 lb
    Box Dimensions (LxWxH) 8.1 x 4.4 x 2.3"

    Astell&Kern AK120 II reviews

    AK120 II Portable High Definition Sound System (Silver) is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Amazing Sound Quality I just wanted to write a quick review. I also upgraded to this unit from a Fioo X5 1st gen player. The sound quality is on an entirely different level---an astronomical upgrade. I also had the Bit Opus 1 for a month before sending it back and buying this unit on the site used. The Opus was really good but nowhere the sound quality of this unit. I hear details I never heard before with the 120 II. The volume is pretty good on its own but I pair it with a Fostex portable tube amp at home and a chord mojo for the gym---serious audiophile gear. IF you can afford this unit---buy without hesitation--it really is fantastic, as good as it gets at this price.
    Date published: 2017-04-02
    Rated 5 out of 5 by from Exquisite, delightful, seductive, pure audio indulgence A+++ Just received this AK120II which I have been contemplating in purchasing for some time now. Got a great deal from B&H used but nontheless, exceptional in everyway. I am a novice audiophile so let me just say that this review is no where near objective but providing my feedback from another DAC I has previously which is the FIIO X5. First off, I like this one since it has a nicer interface and it's a capacitive touch screen. It's more sexier than FIIO and superior in every aspects in terms of aesthetics and audio fidelity. I am not going to bore you with all the technical terms, but if these two music players were edible delicacy we all know, FIIO would be a can of Starkist Tuna and AK120II would be a fine Russian Caviar--exquisite in every respect. So, if you have not owned one and you think FIIO was a great player, than AK120II is just so .... oh yes! BTW, I use this unit with Grado Prestige 325e and 10e.
    Date published: 2015-07-02
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