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Astell&Kern

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The Starting Point of Music, AK Jr

Thin and Light

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 Story

The AK Jr simplifies complex features of Hi-Fi audio to a smartphone-like experience.
The simplified design exemplifies the original concept of the AK Jr.

The raised screen provides secure grip and slims down the profile from 8.9mm to 6.9mm. The full aluminum body and textured aluminum volume wheel allows smooth one-handed operation.

Increased output
and lowered impedance

The AK Jr's output level of 1.95 VRMS represents a 14% increase over the AK100's 1.5 VRMS.
Our engineers have reduced the output impedance to 2 Ohms for a significant gain in sound fidelity from the AK100’s 22 Ohms.

As the AK Jr supports many various types of earphones and headphones, a separate amplifier is unnecessary.

DSD to PCM

The AK Jr supports DSD, the digital audio format widely considered to be the next-generation in high resolution audio.
Listen to a greater range of audio through DSD.

* The AK Jr converts 2.8 MHz DSD files to PCM.

DSD
DSD
CPU
PCM
Conversion
PCM
DAC
 
 

USB DAC

The AK Jr can also function as an external DAC (sound card) when connected to a PC or Mac via USB.
When playing music stored on a computer, the AK Jr delivers the same high level of audio quality while
eliminating the need for a built-in sound card.

- The AK Jr's EQ settings are disabled when used as a USB DAC.
The USB DAC feature also supports UAC 1.0 (USB Audio Class 1.0 / 24-bit, 96 kHz) audio output.

PC / MAC

PCM USB

Line Out

Headphone

Speaker

Car

Full Touch Screen

The AK Jr features a 3.1" LCD touchscreen that is about 1.4 times larger than the AK100’s LCD.
The smartphone-like full touch capabilities offer responsive interface and the larger screen displays more information.

AK100 List View

AK Jr List View

Album covers that are in a 4:3 format on the AK100 are now displayed 1:1 aspect on the AK Jr’s larger screen.

AK100 Music Playback Screen

AK Jr Music Playback Screen

64GB + 256GB microSD

The AK Jr features 64GB of memory to store more music than ever before. Supporting microSD cards
up to 256GB, the AK Jr is capable of offering a whopping total storage capacity of 320GB!

The combined 320GB of internal memory and external microSD card capacity is capable of holding more than 3,125
high resolution audio. (Based on one, 4-minute song @ 24 bit/96 kHz, taking up 90MB)

256GB

microSD Slot x1

(Max 256GB)

Max 320GB

64GB internal memory