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Astell&Kern AK70 MKⅡ Portable Music Player

HK$5,380

Availability: In stock

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Back in black and ready to impress! The AK70 MKⅡ 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 MKⅡ through Astell&Kern's accumulated know-how.

Details

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 MKⅡ's sound quality is sure to please even the most discerning music aficionado.

* SNR (Signal to Noise Ratio): As the signal-to-noise ratio increases, the clearer the sound becomes.
* CROSSTALK: The higher the number in the crosstalk specification, the higher the isolation in the Left/Right channels develops.
* THD+N (THD + Noise, Distortion): over the THD + Noise signal rate, less distortion is heard.
* Jitter: With smaller figures representing irregular tremors of the signal waveform, the better the device performs.

Compact size for easy carrying and one-handed operation

AK70 MKⅡ 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.


24-bit, 192 kHz Bit-to-Bit 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 downsampled.

* 32-bit, 384 kHz is downsampled to 24-bit, 192 kHz, and 32-bit, 352 kHz is downsampled to 24-bit, 176 kHz for playback.
* DSD 64/128 is converted via DSD-to-PCM to PCM 24-bit, 176 kHz for playback.

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.

AK CD-RIPPER

The AK70 MKⅡ allows users to rip CDs with ease by connecting our AK CD-RIPPER accessory. Our exclusive CD-RIPPER can 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 of the tagging information will be stored for each album. The combination of the AK70 MKⅡ and AK CD-RIPPER make it simple and easy to digitize your entire CD collection.

* The AK CD-RIPPER may not be properly recognized when using a power supply adapter rated at less than 5V 2A.

Specification & Warranty

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-F: 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)

Q & A

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