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Astell & Kern KANN Astro Silver Portable Audio Player

Astell & Kern

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2017 Best Portable Music Player £750+
“It’s dynamic, has a great sense of timing, and is full of insight”

AV Online

"When it comes to performance per pound, there’s no mistaking the Kann’s sonic chops. It’s dynamic, has a great sense of timing, and gives an insightful performance."

KANN is here to lead the portable high-res audio industry to a whole new level. Astell & Kern’s experience with technology and portable devices makes it possible for the KANN to offer dynamic power and performance. KANN is the complete all-around portable high-res digital music player with powerful output and studio quality sound.  

KANN cleverly incorporates a high-performance amplifier into a player for a perfect merger of two independent devices. Supporting the output of 7 Vrms when connected via high-gain balanced output, the KANN not only drives high-impedance headphones without an additional amplifier, but also reliably reproduces high-quality sound with low-impedance speakers.

The first Astell & Kern product to be equipped with a line-out circuit designed to set the output values in 4 levels, depending on the user's listening preference. This feature is a significant step up from previous products which did not provide output/volume control. With the selectable output function, you can fine-tune your sound to suit a home system, car audio or any other listening environment. 

  • Tick Single AKM AK4490 DAC
  • Tick Native DSD playback up to DSD256 (11.2mHz)
  • Tick PCM audio playback up to 32bit/382kHz
  • Tick Built-in amp with normal/high gain switch: drive the most demanding headphones with ease!
  • Tick Lowest output impedance of any our portable high-res audio players: Single-ended 3.5mm: 0.65Ω / Balanced out 2.5mm: 1.3Ω
  • Tick USB Type-C support (charging & data transfer)
  • Tick Micro USB for USB audio out & USB DAC
  • Tick Dedicated Line Out (2.5mm balanced & 3.5mm single-ended)
  • Tick 64GB internal flash memory
  • Tick Micro SD card support up to 256GB
  • Tick Full size SD card support up to 512GB
  • Tick aptX HD Bluetooth codec support
  • Tick 4" WVGA 800 x 480 LCD touch screen
  • Tick Long battery life: 6,200mAh 3.7V Li-Polymer Battery (up to 15 hours)

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

General Specifications

Body Material Aluminium
Display 4" WVGA (480 x 800) Touchscreen
Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE, (Normal, High, Fast), AAC, AIFF, DFF, DSF
Dimensions W 71mm x H 115mm x D 25mm
Weight 278g

Clock Source

Clock Jitter 30ps (Typ)
Reference Clock Jitter 200 Femto Seconds


Capacity 6,200mAh 3.7V Li-Polymer Battery


Built In Memory 64GB [NAND]
External Memory microSD (Max. 256GB) x1
SD (Max.256GB) x1


Supported OS Windows XP, Windows 7, 8, 10 (32/64bit), MAC OS X 10.7 and up

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.