The newly introduced feature of the 4.4mm balanced output port is exciting, however, the most important part is how we implemented it. Unlike other manufacturer’s products, KANN ALPHA has physically separated the 2.5mm and 4.4mm outputs using micro relays. When 2.5mm and 4.4mm structures are connected only to the mute circuit they do not prevent noise interference that may occur because each signal is not properly blocked. KANN ALPHA boasts noise-free output because we built in an independent structure that completely blocks interference from outputs that are not being used and to be switched off therefore preventing the noise from occurring.
In order to minimize contact noise from the output, a gold PVD coating method is applied to the headphone connector instead of the typical rings used by other products.This improves both design and function.By adopting NDICS' Pentaconn 4.4mm connector, KANN ALPHA not only satisfies the requests of users, but the implementation boasts excellent quality and durability.
MQA hardware rendering is built into the ES9068AS DACs and supports MQA 8x rendering. MQA-CD playback is also supported on KANN ALPHA when playing MQA-CDs using the AK CD-Ripper. You now do not need special, expensive equipment to play back master quality audio CDs. Enjoy the original master sound through the dedicated hardware renderer installed in KANN ALPHA.
With KANN ALPHA, you can enjoy the fun of creating your own customized sound by selecting among various DAC filters provided by the DAC manufacturer.
KANN ALPHA boasts excellent performance measurement for crosstalk. Channel crosstalk is how much signal leaking there is between the L and R channels. The higher the crosstalk number, the better the separation between channels and the deeper and wider the sense of space that can be felt. As evident with the newly developed audio circuit design, KANN ALPHA features a never before seen Crosstalk measurement of -141dB(High Gain), which is unmatched by any other portable audio products in its class.
KANN ALPHA is the first Astell&Kern player to use Bluetooth 5.0.The latest Bluetooth version provides high sound quality with the convenience of wireless playback to headphones and IEMs. Bluetooth 5.0 features faster transmission speed and greater range compared to Bluetooth 4.2, therefore providing a more stable wireless connection. Both LDAC and Qualcomm® aptX™ HD is supported to provide audiophiles with the best wireless sound possible. The high-quality sound that Astell&Kern is known for can now be heard when using Bluetooth earphones, headphones, and speakers.
KANN ALPHA supports the same powerful 12Vrms output as the existing KANN CUBE, however the player has been optimized to be more compact.This is achieved through the miniaturization of numerous parts such as resistors and capacitors, by rearranging various components and through circuit optimization.This resulted in the modification of more than 60 parts during the development process.Ultra-small tantalum capacitors, which were developed exclusively for Astell&Kern through a collaboration with Matsuo Electric in Japan to meet our high performance requirements, supply stable power to the player and suppress electrical noise.This redesigned power circuit used in KANN ALPHA also allows us to achieve 14 ½ hours of continuous playback.
Astell&Kern's proprietary aluminum body design suppresses noise to improve sound quality, while providing the best signal transmission to the audio circuits. With our laser ground extension technology, you can achieve the best sound possible.The vibration-free processing machines used by Astell&Kern are the same ones used by expensive Swiss luxury watch manufacturers.This is reflected in the crafting of the volume wheel which is processed precisely like the crown of a luxury watch for the best operating feel.Independent machining processing is applied to individual areas to create each small pattern.
SPECIFICATION
Body Color
Onyx Black
Body Material
Aluminum
Display
4.1inch HD 720 x 1280 Touch Display
Supported Audio Formats
WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
Sample rate
PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample) /
DSD Native: DSD64(1bit 2.8MHz), Stereo/ DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level
High : Unbalanced 6Vrms │ Balanced 12Vrms (Condition No Load)
Mid : Unbalanced 4Vrms │ Balanced 8Vrms (Condition No Load)
Low : Unbalanced 2Vrms │ Balanced 4Vrms (Condition No Load)
CPU
Quad-Core
DAC
ESS ES9068AS x2 (Dual DAC)
Decoding
Support up to 32bit / 384kHz Bit to Bit playback
Input
USB Type-C input (for charging & PC & MAC)
Output
Unbalanced Out (3.5mm), Optical Out (3.5mm)
Balanced Out (2.5mm, only 4-pole supported | 4.4m, only 5-pole supported)
Wi-Fi
802.11 b/g/n (2.4GHz)
Bluetooth
V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
Dimensions
2.68” (68.3mm)[W] x 4.60” (117mm)[H] x 0.98” (25mm)[D]
Weight
About 11.14oz (316g)
Audio Performance
Frequency Response
±0.021dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.024dB (Condition : 20Hz~20kHz) Balanced ±0.021dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.155dB (Condition : 20Hz~70kHz) Balanced
Signal to Noise Ratio
116dB @ 1kHz, Unbalanced │ 117dB @ 1kHz, Balanced
Crosstalk
-128dB @ 1kHz, Unbalanced │ -141dB @ 1kHz, Balanced
THD+N
0.0003% @ 1kHz, Unbalanced │ 0.0005% @ 1kHz, Balanced
IMD SMPTE
0.0003% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz(4:1) Balanced
Output Impedance
Unbalanced Out 3.5mm (0.8ohm) / Balanced out 2.5mm (2.0ohm), 4.4mm(1.8ohm)
Clock source
Clock Jitter
25ps(Typ)
Battery & Memory
Capacity
5,600mAh 3.8V Li-Polymer Battery
Playback Time
About 14.5 hours (Standard : FLAC, 16bit, 44.1kHz, Vol.80, LCD Off, Low Gain)
Charge Time
About 3.5 hours (9V/1.67A Fast Charging) / 5hours (5V/2A General Charging)
Built-in Memory
64GB [NAND]
External Memory
microSD (Max. 1TB) x1
Supported OS
Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
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