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Home  >  Audio Converters >  Item # E1IRAK100 (MFR# E1IRAK100)
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Astell & Kern AK100 Mastering Quality Sound (MQS) Portable System Headphone Kit
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iRiver Astell & Kern AK100 Mastering Quality Sound (MQS) Portable System Headphone Kit

Condition: Brand new, USA Warranty

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

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. MQS sources are commonly saved as a lossless 24bit WAV or FLAC files during record production at the time of the mastering source and the difference between MQS and MP3s/CDs (WAV) can be heard and felt because the sound is distortion free and there is no data loss within the MQS (24bit) source.

With the integrated Wolfson WM8740 high-performance DAC, the Astell&Kern AK100 MQS (Mastering Quality Sound) Portable System meets the demanding criteria of Hi-Fi audio even from its small size. The Astell&Kern AK100 does not need external MQS encoding and results in a more refined and pure sound.

Product Details:

  • 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 - Total of 96GB of music storage space / 1000 tracks of Hi-Fi music
  • Use the Astell&Kern AK100 with or as an external optical DAC
  • Refined design with integrated volume wheel & brushed aluminum body
  • Intuitive user interface experience combined with touchscreen LCD & control buttons

Product Specifications:

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

ATH-W1000X "Grandioso" Closed-Back Audiophile Cherrywood Headphones

The ATH-W1000X wooden headphones provide stand-out style with definitive yet delicate sound reproduction.

Hand finished in American black cherry wood the ATH-W1000X's contain 53mm OFC coil drivers which provide excellent body and improved clarity. An advanced, redesigned 3D wing support system ensures the most luxurious, long listening comfort, with a lightweight magnesium alloy frame featuring integrated baffle.

The newly designed floating mount system enhances the natural qualities of the wooden housings whilst a special 'dual air dampening 'system delivers more linear sound.


Headphones Type  Closed-back Dynamic
Driver Diameter 53 mm
Voice Coil OFC-6N
Frequency Response 5 - 42,000 Hz
Maximum Input Power 2,000 mw
Sensitivity 100 dB/mW
Impedance 42 ohms
Cable 3.0 m Y-type, PCOCC conductor cord with elastomer sheath
Connector 1/4" (6.3 mm) gold-plated wooden plug
Weight 350 g / 12.35 oz

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iRiver Astell & Kern AK100 Mastering Quality Sound (MQS) Portable System Headphone Kit

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