Astell&Kern AK70 64 GB High Resolution Portable Audio Player Review

Astell&Kern AK70 64 GB High Resolution Portable Audio Player image1
Astell&Kern AK70 64 GB High Resolution Portable Audio Player
24bit 192kHz bit to bit Playback
The AK70’s DAC, based on market-proven CS4398 chips of Cirrus Logic, has actually been employed for many years in Hi-Fi audios along with the second-generation Astell&Kern devices. The AK70 plays back 24bit 192kHz signals into bit-to-bit type. 32bit audio is downsampled using a sample-rate converter.

In addition, DSD 64/128 can be played back through conversion to PCM. * 32bit, 384kHz is downsampled to 24bit, 192kHz, and 32bit, 352kHz is downsampled to 24bit, 176kHz for playback. * DSD 64/128 is converted via DSD-to-PCM to

PCM 24bit, 176kHz for playback.
AK70’s Diverse Output Types – Balanced Output
The AK70 supports the 2.5-mm 4-pole balanced output (2.3 Vrms) that has been in use since the 2nd technology of the

Astell&Kern players.
Unlike the unbalanced type, the balanced output type is capable of removing noise (common mode noise) that can occur in “signal + inverting amplifier signal” and has the strength of increasing output due to its double transmitting signals.

The AK70 can be made use of with a variety of balanced earphones and headphones made for Astell&Kern. It can also support the 3.5-mm 3-pole unbalanced output (2.3 Vrms), with compatibility with a variety of Hi-Fi earphones and headphones.

Variety of Output Types of AK70 – USB Audi
The AK70 supports USB audio digital out, first among Astell&Kern devices.
You can connect diverse digital-input portable amps through USB to the AK70. The AK70 can transfer DSD in native through DoP. It can also convert DSD into PCM for output for portable amps that do not support DoP.

Variety of Output Types of AK70 – USB DAC
The AK70 can be utilized with a USB DAC that can double as an embedded sound card by connecting with a PC/Mac through the USB port.

In the case of using the PC’s embedded sound card, one may have to go through a complicated process to play back DSD data. In contrast, the AK70 can do so simply by connecting with the PC.
In the case of using the AK70 as a USB DAC, it can support up to 24-bit 96 kHz bit to bit, providing much richer sound through superior ambience and resolution way beyond the limits of an embedded sound card.

AK CD-RIPPER
The Astell&Kern AK70 64 GB High Resolution Portable Audio Player can allow users to rip CDs with ease by linking with the AK CD-RIPPER.
By inheriting from the AK500N, it supports the CD track error correction feature plus the meta data (ID3TAG) auto input feature using Gracenote’s database without any change.

The AK70’s Network – AK Connect
The AK70 comes equipped with the AK Connect feature that can be connected with network-ready Astell&Kern devices.
It is Astell&Kern AK70 64 GB High Resolution Portable Audio Player also appointed with wireless networking DLNA (Ver. 1.0), which makes it easy to work with NAS/PC on the same network and through an AK Connect app supporting smartphone/tablet computer.

NOTE: Use the inbuilt EQ to custom tune sound to user’s preference

Box Contains
AK70 Portable Audio Player (64GB);Warranty;Manual

See Featured Product for Astell&Kern AK70 64 GB High Resolution Portable Audio Player

  • High-resolution portable music player; 24bit/192kHz DAC design
  • Winner of What Hi-Fi? Product of the Year 2016 – Best Portable Music Player
  • Wi-fi connectivity enables easy streaming – including of TIDAL.Frequency Response 20 Hz – 20 kHz.
  • Also works as a USB DAC, to boost quality of computer-based audio
  • 64GB of internal memory; micro SD slot for further expansion (264GB+)

See Featured Image of Astell&Kern AK70 64 GB High Resolution Portable Audio Player

Astell&Kern AK70 64 GB High Resolution Portable Audio Player image 2Astell&Kern AK70 64 GB High Resolution Portable Audio Player image 3

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