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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 second generation 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 used 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 Audio
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. * USB audio output is available only when digital input is possible through USB.
* DoP (DSD over PCM) : This is a standard for transferring DSD data to USB interface. This standard sends DSD data by mounting them onto PCM data frames.
* In order to link the AK70 with a portable amp, one needs OTG cable, which is not included in the AK70 package.
* The cable connecting OTG cable with a portable amp differs depending on the specs of the amp, which is not included in the AK70 package.

Variety of Output Types of AK70 – USB DAC
The AK70 can be used 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.

Technical Specs

General Specifications Model AK70 Body Color Misty Mint Body Material Aluminum Display 3.3inch WVGA (480 x 800) TFT LCD Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF Sample rate FLAC, WAV, ALAC, AIFF : 8kHz ~ 192kHz (8/16/24bits per Sample) DSD : DSD64, Stereo / DSD128, Stereo Output Level Unbalance 2.3Vrms / Balance 2.3Vrms (Condition No Load) DAC Cirrus Logic CS4398 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) / Balanced Out (2.5mm, only 4-pole supported) Wi-Fi 802.11 b/g/n (2.4GHz) Dimensions 2.37 ”(60.3 mm) [W] x 3.81 ”(96.8 mm) [H] x 0.51 ”(13 mm) [D] Weight 4.66 oz (132 g) Feature Enhancements Firmware upgrades supported (OTA) Audio Performance Frequency Response ±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance ±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance Signal to Noise Ratio 116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance Crosstalk 130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance THD+N 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance IMD SMPTE 0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance Output Impedance Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm) Clock Source Clock Jitter 50ps (Typ) Battery Capacity 2,200mAh 3.7V Li-Polymer Battery Memory Built-in Memory 64GB [NAND] External Memory microSD (Max 256GB) x1 OS Supported OS Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up

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Astell&Kern

AK70 64GB – Misty Green

Original price was: AED2,000.Current price is: AED350. (Inc. Tax)

The AK70 is designed with an oblique angle on one side of the body so that it can fit the contour of the user’s thumb, the finger used most frequently when controlling the screen with one hand.

The volume wheel is designed to be protruding slightly from a concave surface so that you can control volume with a simple motion of sliding your finger up and down. With slim 13-mm thickness and 132-gram lightweight, the palm-sized device is easy to carry anywhere.
The crown-patterned volume wheel on the right corner is similar in appearance to a cut gemstone, which reflects light from various angles. The sophisticated volume wheel on A&ultima SP1000 not only delivers visual and textual details with precision, but allows convenient, one finger ON/OFF control and fine volume control with the addition of both push and turn features.
The AK70 has adopted a pastel-color anodized aluminum casing, which makes it look high quality with its light mint color and glossy silver tone. The smart-looking exterior and smooth color make the device look more casual and simpler.

– Not connecting with Streaming services

– Minor scratches at the charging port

Listing Type

Condition Gently Used

BoxNo

AccessoriesCables

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Details

24bit 192kHz bit to bit Playback The AK70’s DAC, based on market-proven CS4398 chips of Cirrus Logic, has been used for years in Hi-Fi audios and 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. 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 second generation 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 used 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 Audio 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. * USB audio output is available only when digital input is possible through USB. * DoP (DSD over PCM) : This is a standard for transferring DSD data to USB interface. This standard sends DSD data by mounting them onto PCM data frames. * In order to link the AK70 with a portable amp, one needs OTG cable, which is not included in the AK70 package. * The cable connecting OTG cable with a portable amp differs depending on the specs of the amp, which is not included in the AK70 package. Variety of Output Types of AK70 – USB DAC The AK70 can be used 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.

Technical Specifications

Warranty & Return

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