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  • Astell&Kern AK100 Mastering Quality Sound (MQS) Portable System
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Astell&Kern AK100 Mastering Quality Sound (MQS) Portable System

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Price: $699.00 & FREE Shipping. Details
Only 12 left in stock.
Sold by ListenUp and Fulfilled by Amazon. Gift-wrap available.
  • High-resolution music track support up to 24bit/192kHz; Natively supports FLAC, OGG, WMA, MP3, WAV, APE (AAC Support Coming Soon)
  • Integrated Wolfson WM8740 high-performance DAC; can be used as an external optical DAC
  • 2.4" capacitive 16MM IPS touchscreen (320x240); Bluetooth 3.0 supported
  • Dual Micro SD Memory Card slots (32GB support in each slot); 32GB of internal flash memory; total memory space of 96GB
  • 12 hours continuous audio playback (FLAC 24bit/96kHz)
5 new from $699.00 2 used from $439.99
$699.00 & FREE Shipping. Details Only 12 left in stock. Sold by ListenUp and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Astell&Kern AK100 Mastering Quality Sound (MQS) Portable System + Astell & Kern AK100 Leather Carrying Case (Black)
Price for both: $748.00

Buy the selected items together

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Technical Details

  • Brand Name: Astell&Kern
  • Model Number: 3AK1006C-CMBLN2
  • Display: LCD
  • Display Size: 2.4 inches

Product Description

The Astell&Kern AK100 is the ultimate portable high-fidelity audio system capable of studio Mastering Quality Sound (MQS) support and playback. MQS (24bit, 96kHz -192kHz) is considered as the digital music format with the most amount of information and commonly saved as a lossless 24bit WAV/FLAC format. The difference between MQS and MP3s/CDs (WAV) can be heard and felt because the sound is distortion free because no data loss occurs within the MQS (24bit) source. The Astell&Kern AK100 does not need external MQS encoding and results in a more refined and pure sound.

Bit-to-bit Mastering Quality Sound (MQS) playback
World's first portable device equipped with the Wolfson WM8740 24bit/192kHz DAC
Dual MicroSD card slots with 32GB of internal flash memory - 96GB of music storage space
Use the Astell&Kern AK100 with or as an external optical DAC
Refined design w/ integrated volume wheel & brushed aluminum body
Intuitive user interface experience with touchscreen LCD & control buttons

Technical Specs
Dimensions: 2.32" x 3.11" x 0.55" (in)
Weight: 4.3oz
DAC: Wolfson WM8740 (24bit/192kHz)
Display: 2.4" IPS Touch Screen (320 x 240)
Memory: 32GB Internal / Dual Micro SD card slots (32 GB each)
Bluetooth: 3.0/A2DP
Output Level: 1.5 VRMS
THD+N: < 0.0008%/1kHz ; < 0.001%/10Hz ~ 20kHz
Signal to Noise: 110 dB
Frequency Response: ± 0.14 dB/10Hz ~ 20kHz
Jitter: 90 PS

Product Details

  • Product Dimensions: 2.3 x 0.7 x 3.1 inches ; 4.3 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • ASIN: B00A6LX0F0
  • Item model number: 3AK1006C-CMBLN2
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (25 customer reviews)
  • Amazon Best Sellers Rank: #259,702 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: November 13, 2012

Customer Questions & Answers

Customer Reviews

4.1 out of 5 stars

Most Helpful Customer Reviews

86 of 94 people found the following review helpful By Sky Blue on December 9, 2012
[UPDATE August 3, 2013] Now AK100 has a USB DAC firmware update. It means you can use AK100 as an external DAC to computers that do not have optical outs and listen to Foobars and I-Tunes music with much better DAC and amp than the ones inside the computers. Now, at least functionwise, the difference between AK100 and AK120 has been reduced to DSD Playback capability only. There is some sound difference of course, which I described in my AK120 review.

[UPDATE July 22, 2013] I have been using AK120 quite some time (See my review here: Astell&Kern AK120 Dual-DAC Mastering Quality Sound Portable System) instead of this one. But AK100 is still a keeper; the small form factor in light of sound quality is a winner. Besides we now have a new firmware update: 2.01. Now you no longer need to rely on the Russian unofficial version to enjoy the gapless play or significantly enhanced UI. As of now, the only major "functional" differences between this one and AK120 remain DSD playback and USB DAC. There is a sound difference of course but when it comes to value AK100 is the better of the two.

[UPDATE June 10, 2013] The Russian man has done it again! He came up with an even improved version of his previously excellent AK100 firmware; it is being being called "Listrid 2.0" in the community. Sound is better. Operation is faster. In response to this, I-River, the company, came up with its own Beta 2.0 as well. You basically have 4 firmware version choices now and 1.33 is the worst. To download these firmwares, Google "The New iRiver AK100: A High-End DAP" to access the relevant Head-fi site, locate to Page #384 and then Post #5747 for detailed instructions and impressions.
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26 of 26 people found the following review helpful By jingle bell dogs on June 7, 2013
Let me start this review of the AK100 with a couple of notes on my listening passion to define my point of view. I am a mid-range audio enthusiast. My current listening room is fitted with 2 Peachtree 220 amps and a NovaPre, Magnapan 3.7s, a music server with Peachtree X1 interface and a Music Hall MMF2.2 turntable w/AT440ML cartridge. My musical preferences include The Beatles, My Chemical Romance, The Doors, Mandy Patinkin and a little Shinedown for some balance. Most of my collection is in FLAC format from commercially reliable vendors that supply most of my favorite genres in 24/192 and of course my CD rips.

On to the AK100.

BUILD: 10/10

As all of the reviews I read prior to purchase stated the build quality is outstanding, the controls are well done with a mix of digital and the volume potentiometer, the screen is clear and large for a personal player. The case is smooth and durable. I liken the build to a Mercedes G class.


The UI was the reason for my delayed purchase. The versions previous to 1.33 had some issues that caused me concern for a high end consumer personal player. When I received my unit V1.30 was loaded. I immediately updated to V1.33 before loading audio or doing any setup. The update is fast and simple. With V1.33 loaded boot is reliable, a large library (mine is 86GB) takes about 90 seconds to scan. In the 3 weeks I have had the unit I have had 2 issues with the interface. On boot it will scan and then miss the data loaded on SD1 and the internal memory. A reboot resolves the issue. I have not "lost" any data with this issue.

One other slight issue I have reported to iRiver is occasionally an MP3 will clip the end of the song and end prematurely.
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11 of 11 people found the following review helpful By duke on May 28, 2013
## Update as of 07/10/2013
It has been a while since I updated AK100 with the latest official firmware 2.01. iriver has done its homework, and it gets "A" grade from me for the following improvements:
1. UI is very simple, and its 'home' screen is shortcut based, and it saves lots of time - this is quite helpful when you are walking
2. UI is much faster
3. 'Booster' function adds slight punch just like the 'Loudness' function found on some of pre-amps
4. Added 'Gapless' function, of course, is very good. I initially didn't care too much about lack of it in previous firmware, but this, indeed, made listening to live album feel more like listening to the live session
5. I had a chance to try out the latest so-called Russian firmware which brought some clarity and sharpness, however, I prefer the official 2.01 as I found it more comfortable to listen for extended period of time - to my humble opinion, the official version sounds more neutral than the other

Just to sum up my experience with AK100: This is awesome product, well an initiative. Accessibility to music in pure form has been progressively difficult over period of time. I never liked the idea of a phone that does all with carelessly produced MP3s. Back in the days, if you want something decent, you had to pay for the quality, then you would get one. But overly successful smartphones and music stores killed the sales of manufactures producing high quality products that are good at only one thing - playing great music. Sadly, they also adapted. Some players are forced to run Android, so it also plays good music, but also multi-task some apps that are built with no passion.
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