ASTELL&KERN AK70 MK2

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Back in black and ready to impress! The AK70 MK2 has a whole lot to offer with its advanced features.

Dual DAC separates the left and right audio channels from input to output
Higher audio output with the same refined sound signature of Astell&Kern
Compact size for easy carrying and one-handed operation

The AK70 has been reborn as the AK70 MK2 through Astell&Kern's accumulated know-how.

 

Dual DAC separates the left and right 
audio channels from input to output

The advantage of a dual DAC player has now become available to everyone. The AK70 MKⅡ is the first model from Astell&Kern to be equipped with a dual DAC for under a thousand dollars. Its separated channel circuit design offers less noise and interference, yet adds more fidelity and audio output power, to create a bigger sound stage with clearer imaging when paired with your favorite cans or speakers.

 

Higher audio output with the same refined
Astell&Kern sound signature

With a substantial power output of 4.0Vrms 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 latest audio design technology.

While maintaining the natural and neutral tone and sound signature Astell&Kern is famous for, the newly designed audio circuit creates authentic sounds by exceeding previous Hi-Fi Audio specifications, including SNR, Crosstalk, and THD+N, over previous models.

The powerful AK70 MK2's sound quality is sure to please even the most discerning music aficionado.

 

Compact size for easy carrying 
and one-handed operation

AK70 MK2 delivers superb Hi-Fi audio quality in a pocket-sized portable, 
a must-have feature for listeners who want high quality sound any place and anytime. 
No need to compromise with lossy, compressed music anymore.

The ergonomic body design fits nicely in the palm of the hand, 
making operation a smooth, one-handed experience.

 

Balanced Out

The AK70 MKⅡ delivers original sound using the 2.5mm 4-pole balanced output that Astell&Kern first pioneered on the AK240 (and other manufacturers soon adopted). The balanced out provides a more powerful audio signal with less noise interference.

 

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) and converts DSD to PCM for output 
for external USB Audio that do not support DoP.

* USB audio (Digital Out) output is available only when an external device can accept digital input through USB.
* DoP (DSD over PCM): This is the standard for transferring DSD data to a USB interface and sends DSD data by mounting them onto PCM data frames.
* The type of OTG cable to connect the AK70 MKⅡ with a portable amp differs depending on the specs of the amp. An OTG cable is not included in the AK70 MKⅡ package.

 

USB DAC

Connect to your PC/Mac computer, or other system, via a USB cable and use the AK70 MKⅡ's hardware to provide better sound quality.
The AK70 MKⅡ, when used as a USB DAC, will bring out more detail and provide a better listening experience than your computer is capable of delivering, even when listening to your favorite streaming service!

When using the AK70 MKⅡ as a USB DAC, playback up to 24-bit, 96kHz is supported to deliver a much richer sound through a larger soundstage and resolution that goes far beyond the limits of an embedded sound card.

Want to easily play back DSD on your computer? No problem. Using the PC's embedded sound card usually requires a complicated process to playback DSD data, but with the AK70 MKⅡ, simply install our DAC driver on your PC/MAC and play DSD with ease.

* AK70 MKⅡ supports up to 24-bit 96 kHz with USB audio class 1.0 specs.
* DSD 64/128 is converted via DSD-to-PCM for playback.

 

AK Connect

AK Connect, a DLNA-based music control app, is available on the AK70 MKⅡ and smart devices including your phone or tablet.
You can 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 of 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.

 

Specification

General Specifications

Model

AK70 MKⅡ

Body Color

Noir Black

Body Material

Aluminum

Display

3.3inch WVGA (480 x 800) TFT LCD

Supported Audio Formats

WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF

Sample rate

PCM : 8kHz ~ 192kHz (8/16/24bits per Sample)
DSD : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz)

Output Level

Unbalance 2.0Vrms / Balance 4.0Vrms (Condition No Load)

DAC

Cirrus Logic CS4398 x2 (Dual 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) / Balanced Out (2.5mm, only 4-pole supported)

Wi-Fi

802.11 b/g/n (2.4GHz)

Bluetooth

V4.0 (A2DP, AVRCP, aptXtm HD)

Dimensions

2.47 ”(62.8 mm) [W] x 3.81 ”(96.8 mm) [H] x 0.59 ”(15.2 mm) [D]

Weight

5.29 oz (150 g)

Feature Enhancements

Firmware upgrades supported (OTA)

Audio Performance

Frequency Response

±0.11dB (Condition: 20Hz~20kHz) Unbalance / ±0.09dB (Condition: 20Hz~20kHz) Balance
±0.5dB (Condition: 10Hz~70kHz) Unbalance / ±0.5dB (Condition: 10Hz~70kHz) Balance

Signal to Noise Ratio

118dB @ 1kHz, Unbalance / 119dB @ 1kHz, Balance

Crosstalk

136dB @ 1kHz, Unbalance / 138dB @ 1kHz, Balance

THD+N

0.0005% @ 1kHz, Unbalance / 0.0005% @ 1kHz, Balance

IMD SMPTE

0.0003% 800Hz 10kHz(4:1) Unbalance / 0.0003% 800Hz 10kHz(4:1) Balance

Output Impedance

Balanced out 2.5mm (3ohm) / PHONES 3.5mm (1.5ohm)

Clock source

Clock Jitter

45ps (Typ)

Battery

Capacity

2,500mAh 3.7V Li-Polymer Battery

Memory

Built-in Memory

64GB [NAND]

External Memory

microSD (Max 256GB) x1

OS

Supported OS

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

£599.00
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