Astell&Kern AK Jr Digital Audio Player

The Starting Point of Music, AK Jr

The AK Jr project gives everyone the opportunity to comfortably listen to high resolution audio, anytime and anywhere. Although the Astell&Kern was a portable device, its relatively large size made it less convenient for some. The AK Jr’s compact design delivers the highest sound quality while fitting comfortably in your pocket.

The AK Jr is like carrying a small concert in your pocket.

Design and Structure:

The design and structure of the new AK JR is quite captivating. It is slightly smaller than the size of an iPhone and fits comfortably in your hand. It is the smallest sized player in Astell&Kern’s lineup. The unit is quite sleek and chic in design. Located just below the micro SD card slot is the unobtrusive volume wheel of the player. On the left edge of the unit are the back, forward and play/pause command buttons. The bottom edge of the AK Jr is kept bare with the exception of a micro USB port for syncing and charging the player.

Quality & Features:

The all new AK JR is provided with a 64 GB on-board memory which utilises a Wolfson WMA740 DAC chip which is capable of handling 24/192 files. The extensive file compatability supports all major formats such as: FLAC, ALAC, AIFF, DSD (Converted to PCM), PCM and MP3. It offers great battery life with high resolution 24 bit or regular 16 bit files. SD cards ranging up to 64GB can also be used.

General Specifications

Model: AK Jr

Body Colour: Sleek Silver

Body Material: Aluminium

Display: 3.1inch WVGA (240 x 400) Touchscreen

Supported Audio Formats: 

WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF

FLAC, WAV, ALAC, AIFF

Sample rate: 

8kHz ~ 192kHz (8/16/24bits per Sample) / DSD : DSD64 (1bit 2.8MHz), Stereo (DSD to PCM)

Output Level: 1.95Vrms

DAC: Wolfson WM8740 x1 (Single DAC)

Decoding: Support up to 24bit/192kHz Bit to Bit Decoding

Input: USB Micro-B input (for charging & data transfer (PC & MAC) / Connection Mode : MTP (Media Device)

Outputs: PHONES (3.5mm) 

Bluetooth: V4.0

Dimensions: 2.08” (52.9 mm) [W] x 4.60” (117 mm) [H] x 0.35” (8.9 mm) [D]

Weight: 3.28 oz (93 g)

Feature Enhancements: Firmware upgrades supported (F/W file copy)