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Astell & Kern AK100 - Open Box

Special Price $499.00 Regular Price $749.00
In stock

Save on Open Box
Lightly Auditioned In Excellent Condition with FREE Music
Includes FREE Black Leather Case ($49 value)
Includes Full, Original Warranty

Astell & Kern AK100 is the ultimate portable high-fidelity audio system capable of studio mastering quality sound (MQS). The AK100 is compact, portable, sleek and ready to accompany you on your hifi audio adventures.

Capable of 24bit/192kHz playback with almost zero noise, the AK100 is an excellent addition to your hifi portable setup.  Take your music with you wherever you go and don't miss your collecton of hi res music anymore.  The original unit comes with 32 GB of space for your music but you can add up to 2 additional micro SD cards for a total of up to 96 GB per digital player.

The Abso!ute Sound Review by Allan Taffel

We test and inspect each open box item to verify condition and ensure optimal sound quality. Items are covered by manufacturer warranty and are guaranteed to work or we'll refund your purchase.

Returns are not accepted on Open Box items.

With the Astell & Kern AK100 Digital Audio Player you will feel the phenomenal realism of Mastering Quality Sound (MQS) or high-definition lossless music through 24bit/192 kHz sound processing that cannot be heard through a standard CD.

What is MQS (Mastering Quality Sound)?

When comparing MQS to Compact Discs, the MQS music files used during the mastering process in recording studios (24bit/192kHz) contains 6.5 times more information than a CD and results in a more original, precise, and enhanced sound.  Data is extracted 192,000 times per second.

The AK100 by Astell & Kern Meets the 5 criteria of Hi-Fi Audio

The Astell&Kern MQS (Mastering Quality Sound) Portable System meets the demanding criteria of Hi-Fi audio even from its small size and portability.

THD + Noise (Distortion): The lower the THD + Noise signal rate, less distortion is heard. The Astell&Kern achieves a 0.0009% distortion signal rate.

SNR (Signal to Noise Ratio): As the signal-to-noise ratio increases, the clearer the sound becomes. The Astell&Kern signal-to-noise specification is 110dB

CROSSTALK: The higher the number in the crosstalk specification, the higher the isolation in the L/R channels develops. The Astell&Kern has a crosstalk specification of -120dB.

Frequency Response: The frequency response specification of +0.02 to -0.02 in the Astell&Kern provides a clear degree of sound volume from Bass to Treble.

Jitter: With smaller figures representing irregular tremors of the signal waveform, the better the device the soundperforms performance. The Astell&Kern has a Jitter specification of 90PS. 

The AK100 is Equipped with the Wolfson 8740 DAC.  The Wolfson is the world’s highest performing 24bit/192kHz stereo DAC

The Astell & Kern is the world’s first portable device equipped with the Wolfson WM8740 DAC. Consumers familiar with LINN, ARCAM, and other high-end audio equipment (AV Receivers) should be familiar with the Wolfson WM8740 high-performance 24bit/192kHz Stereo DAC. With the world’s highest level of signal-to-noise ratio (SNR) and the lowest level of harmonic distortion (THD) performance, the WM8740 has the reputation in the UK of producing the richest and warmest sound impressions.

Utilizing With the integrated WM8740 DAC, the signal to noise ratio of 110dB found in the Astell&Kern greatly significantly improves sound quality.

External Optical DACs!  The Astell & Kern can be used in combination with or act as an external DAC via the Optical In/Out function.

Equipped with the world’s first Wolfson WM8740 DAC found in a portable device, use the Optical In/Out function found in the Astell&Kern with an external DAC.

Or connect the Astell&Kern to a laptop, PC, or a CD Player that supports an external optical DAC. Play CDs and sounds stored in PC memory for significantly improved sound quality with radiance and realism.

Take advantage of the Astell&Kern as an external DAC.

Drawing the equalizer with the user’s your fingertips.  A practical Applied EQ to determine the change in Frequency Response

With a receiver and the Astell&Kern, 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, the change in frequency response can be monitored through the graph implemented displayed in the equalizer. Touch the screen to adjust the value of each band and the changes to EQ can be confirmed through the graph.

96GB of total memory - The Astell&Kern is equipped with dual Micro SD card slots and supports up to 96GB of total memory capacity.

To playback 24bit/192kHz files and since they are large size files, it is essential for the Astell&Kern to have a high-capacity memory storage. With 32GB of built-in internal memory and dual 32GB high-speed Micro SD card slots, a total of 96GB worth of music files can be saved on the Astell&Kern.

32GB of built-in memory is standard with the unit.

Audio Performance

  • Frequency Response
  • Signal to Noise Ratio
  • Crosstalk
  • THD+N
  • Output Impedance
  • 10Hz to 20kHz +/-0.02dB (24bit 48kHz, No Load)
  • 110dB (1kHz 0dB, 24bit 48kHz, No Load)
  • -120dB (1kHz 0dB, 24bit 48kHz, No Load)
  • 0.0009% (1kHz 0dB, 24bit 48kHz, No Load)
  • 0.003% (24bit 48kHz, No Load)
  • 20 ohm
Manuals and Guides
(Size: 1.6 MB)
Astell&Kern AK100 Digital Audio Player

  • Display
  • Supported Audio Formats
  • Sample rate
  • Output Level
  • DAC
  • Decoding
  • Charging Interface
  • Interface
  • Dimensions
  • Weight
  • Feature Enhancements
  • 2.4inch QVGA (320 x 240) IPS Touchscreen
  • WAV, AIFF, FLAC, ALAC : 8kHz ~ 192kHz (8/16/24-bits per sample)
  • 1.5Vrms (No Load)
  • Wolfson WM8740 24-bit DAC (High-End Audio DAC)
  • Supports up to 24-bit / 192kHz Bit to Bit Decoding
  • Micro USB Type-B
  • USB 2.0, OPTICAL IN/OUT, Headphone Out
  • 2.33 ”(59.2 mm) [W] x 3.11 ”(79 mm) [H] x 0.57 ”(14.4 mm) [D]
  • 4.3 oz (122 g)
  • Firmware upgrades supported
Clock source
  • Clock Jitter
  • 90ps
  • Capacity
  • Continuous Playback Time
  • Charge Time
  • 2,000mAh 3.7V Li-Polymer Battery
  • Up to 16 hours (Standard - MUSIC: FLAC, 16-bit, 44kHz, Volume 37, EQ Off, LCD Off)
  • About 5 hours
  • Built-in Memory
  • External Memory
  • 32GB [NAND]
  • microSD (Max 32GB) x2
  • Supported OS
  • Windows XP, Windows Vista,7,8 (32/64bit), MAC OS X 10.6.5 and up

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