Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Cadet Blue)

Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Cadet Blue)

Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Cadet Blue)

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Product Highlights

  • 24-Bit, 192 kHz Bit-to-Bit Playback
  • Cirrus Logic CS4398 x 2 (Dual DAC)
  • PCM and DSD File Support
  • Wi-Fi and Bluetooth Capable
  • 3.3" WVGA AMOLED Full Touchscreen
  • 64GB Internal Flash Memory
  • 256GB microSD Card Slot
  • 10-Band EQ
  • Integrated Volume Wheel
  • Brushed Aluminum Body
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Color: Cadet Blue

Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Cadet Blue) Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Noir Black)

Price: $699.00

Instant Savings: $100.00

$0.00 Tax Collected Outside NY and NJ

You Pay:  $599.00

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Astell&Kern AK70 MKII overview

  • 1Description

The cadet blue Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC uses dual Cirrus Logic CS4398 chips and supports 24-bit/192 kHz bit-to-bit type playback. The 64GB of on-board storage can be expanded with a microSDXC card (up to 256GB).

32-bit audio is down-sampled using a sample-rate converter, and DSD 64/128 can be played back through conversion to PCM. The AK70 MKII player sports 3.5mm, 3-pole unbalanced and 2.5mm, 4-pole balanced headphone jacks. The balanced output can remove noise (common mode noise) that can occur in signal and inverting amplifier signal, while offering increased power output due to its double transmitting of signals.

The audio player supports USB audio digital out and allows you to connect diverse digital-input portable amps through USB. It can transfer DSD in native through DoP and convert 5.6 MHz DSD into PCM for output to portable amps that do not support DoP.

The AK70 MKII music player can be used as a USB DAC that can double as an embedded 24-bit/96 kHz sound card by connecting with a Windows or Mac computer. After downloading a driver from Astell&Kern, the AK70 can simplify the playback of DSD files on your computer.

The player is designed for a secure one-handed grip that can fit the contour of the user's thumb. The volume wheel is designed to be protruding slightly from a concave surface so that you can control volume with a simple motion of sliding your finger up and down. In addition, the player comes in an anodized aluminum casing. The AK70 MKII ships with a protective film, micro-USB cable, and a microSD slot cover.

Dual DAC
  • The dual DAC offers a separated channel circuit design that offers less noise and interference, while adding more fidelity and audio output power, to create a bigger sound stage with clearer imaging when paired with your favorite headphones or speakers
Higher Audio Output
  • With a substantial power output of 4.0 Vrms from the balanced output, the AK70 MKII can drive a wide range of heavy, hard-to-drive headphones without a problem thanks to Astell&Kern's audio design technology
  • The redesigned audio circuit creates authentic sounds by exceeding previous Hi-Fi Audio specifications, including SNR, Crosstalk, and THD+N, over previous models
Compact Size
  • AK70 MKII delivers Hi-Fi audio quality in a pocket-sized portable package
  • The ergonomic body design fits nicely in the palm of the hand, making operation a smooth, one-handed experience
High Definition Audio Playback
  • The AK70 MKII plays any resolution of digital files up to 24-bit/192 kHz, bit-for-bit
  • 32-bit audio and single- or double-rate DSD can also be played, but it will be converted to PCM or down-sampled
Balanced Out
  • The AK70 MKII delivers original sound using the 2.5mm 4-pole balanced output that provides a more powerful audio signal with less noise interference
USB Audio and DAC
  • USB Audio
    • A simple USB connection will allow the AK70 MKII to be used as a digital music storage device and/or pre-amp to output digital audio through USB
    • The AK70 MKII transfers DSD in native format through DoP (DSD over PCM), or converts DSD to PCM for if DoP isn't supported
    • Connect to your Windows/Mac computer, or other system, via a USB cable and use the AK70 MKII's hardware to provide enhanced sound quality
    • Bring out more detail and provide a better listening experience than your computer can deliver, even when listening to your favorite streaming service
    • Use the AK70 MKII as a USB DAC for playback support up to 24-bit, 96 kHz to deliver a richer sound through a larger soundstage and resolution
    • For DSD playback, simply install the DAC driver on your Windows/Mac computer and play DSD with ease
AK Connect App
  • AK Connect, a DLNA-based music control app, is available on the AK70 MKII and smart devices including your phone or tablet
  • Easily control playback, volume, streaming over Wi-Fi, and more with this free app from Astell&Kern
  • AK Connect allows for convenient access to all your connected music libraries including your smart devices, computers, NAS drive, other Astell&Kern Wi-Fi-enabled products, or any other DLNA-compatible music system on your local network
  • AK Connect app is available for both iOS and Android devices
AK CD-Ripper
  • Rip CDs with ease by connecting to the AK CD-Ripper accessory
  • Rip your CDs directly to the AK70 MKII with 100% error-correction. When connected to Wi-Fi, all metadata for the CD being ripped will be downloaded from the Gracenote database, and all the tagging information will be stored for each album
UPC: 821566016478
In the Box
Astell&Kern AK70 MKII Portable High-Resolution Audio Player and USB DAC (Cadet Blue)
  • Protective Film
  • Micro-USB Cable
  • microSD Card Slot Cover
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Astell&Kern AK70 MKII specs

    Frequency Response Unbalanced (20 Hz to 20 kHz): ±0.11 dB  
    Balanced (20 Hz to 20 kHz): ±0.09 dB
    Unbalanced (10 Hz to 70 kHz): ±0.5 dB
    Balanced (10 Hz to 70 kHz): ±0.5 dB
    Signal-to-Noise Ratio (SNR) Unbalanced: 118 dB @ 1 kHz
    Balanced: 119 dB @ 1 kHz
    Crosstalk Unbalanced: 136 dB @ 1 kHz
    Balanced: 138 dB @ 1 kHz
    THD + N Unbalanced: 0.0005% @ 1 kHz
    Balanced: 0.0005% @ 1 kHz
    IMD SMPTE Unbalanced: 0.0003% 800 Hz 10 kHz (4:1)
    Balanced: 0.0003% 800 Hz 10 kHz (4:1)
    Output Impedance Balanced Output (2.5 mm): 3 Ohms
    Headphone Output (1/8" / 3.5 mm): 1.5 Ohms
    Clock Jitter 45 ps (typical)
    Battery Li-Polymer Battery: 2500 mAh, 3.7 V
    Built-In Memory 64 GB
    Supported OS Windows 7, 8, 10 (32-/64-bit)
    Mac OS X 10.7 and up
    Material of Construction Aluminum
    Display TFT LCD: 3.3" / 83.8 mm, WVGA (480 x 800)
    Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
    Sample Rate PCM: 8 to 192 kHz (8-/16-/24-bits per sample)
    DSD: DSD64 (1-bit, 2.8 MHz), stereo / DSD128 (1-bit, 5.6 MHz)
    Output Level Condition: No load
    Unbalanced: 2.0 Vrms
    Balanced: 4.0 Vrms
    DAC 2 x Cirrus Logic CS4398
    Decoding Support up to 24-bit / 192 kHz (bit-to-bit decoding)
    Input USB Micro-B Input: For charging and data transfer (Windows and Mac)
    Connection Mode: MTP (media device)
    Outputs Headphones: 1/8" / 3.5 mm
    Balanced Output: 2.5 mm, only 4-pole supported
    Wi-Fi 802.11 b/g/n (2.4 GHz)
    Bluetooth V4.0 (A2DP, AVRCP, aptX HD)
    Firmware Updates Firmware upgrades supported (OTA)
    Dimensions (W x H x D) 2.5 x 3.8 x 0.6" / 62.7 x 96.8 x 15.0 mm
    Weight 5.29 oz / 150.00 g
    Packaging Info
    Package Weight 0.75 lb
    Box Dimensions (LxWxH) 5.1 x 3.8 x 1.9"

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