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Astell&Kern A&ultima SP2000T in Black


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  • The Triple Amp system takes acoustics to a new level
  • Tube amplifier compatible with 2.5mm, 3.5mm, and 4.4mm output sockets
  • Equipped with the ESS ES9068AS QUAD-DAC for a balanced, highly detailed sound
  • TERATON ALPHA - the ultimate sound solution from Astell&Kern
  • AK-SP2000T-BLACK
Astell&Kern  A&ultima SP2000T  in Black The SP2000T combines the OP AMP... more
Product information "Astell&Kern A&ultima SP2000T in Black"

Astell&Kern A&ultima SP2000T in Black

The SP2000T combines the OP AMP configuration of the SP2000, with a vacuum TUBE AMP, to add a vintage feel to the player. Equipped with the incredible QUAD-DAC ESS ES9068AS, for Balanced, Ultra Detailed Sound and powered by Astell & Kern's Ultimate Sound Solution; TERATON ALPHA. Featuring a Full HD Display, 256GB in built-in storage, and LDAC aptX-HD wireless quality.

Find Your Optimal Sound, SP2000T

Staying true to their philosophy of delivering original audio experiences without compromise, Astell&Kern strives to design portable music players that reach beyond the capabilities of a standard playback device to enhance the listener’s music enjoyment.
The SP2000T combines the OP AMP configuration of the SP2000—the culmination of Astell&Kern's finest audio technology—with a nostalgic vacuum TUBE AMP, adding a vintage feel to the portable player.

Introducing the A&ultima SP2000T. The Ingenious New Solution. The Triple Amp System Takes Acoustics to a New Level.

-Vacuum Tube Amplifier Compatible with 2.5 mm, 3.5 mm and 4.4 mm Output Jacks.
-Equipped with ESS ES9068AS QUAD-DAC, for Balanced, Ultra Detailed Sound.
-TERATON ALPHA, Astell&Kern's Ultimate Sound Solution.
-ReplayGain Function to Maintain Consistent Playback Levels between Tracks.
-Dual-Band Wi-fi Support for Uninterrupted Wireless Connection and Improved Compatibility.
-Internal Mechanical Design to Minimize Noise

TRIPLE AMP SYSTEM is the Next Generation of AMP Technology

The SP2000T exceeds the standard approach to AMP Mode selection, based on the type of music you are listening to.
Select between TUBE AMP mode, OP AMP mode, or the brand-new HYBRID AMP mode.
OP AMP mode puts Astell&Kern's AMP technology expertise to use, delivering extreme clarity and dynamic sound,
while TUBE AMP mode provides a uniquely warm and musical sound.
HYBRID AMP mode - a first for digital audio players - enhances the resolution and clarity of the existing TUBE AMP mode to express more musical detail.
HYBRID AMP mode, combines the advantages of retro analogue performance and high-resolution output, giving you the pleasure of a brand new tonal characteristic.
Experience the unique sound enhancements that AMP technology has to offer.

OP AMP Mode:
Extreme clarity and dynamic
Uniquely warm and musical
A fresh combination of retro vibes and high-resolution output.

Internal Mechanical Design to Minimise Noise

Special Design to Minimise Microphonics Noise
SP200T features a special design tailored to minimise microphonics (the phenomenon wherein the vacuum tubes generate noise even from a small external impact). Multiple design iterations and verifications have been performed over a long period of time to fix the structural issues of vacuum tubes that generate microphonics noise even from a small impact or vibration. For minimization of mechanical impact and vibration, both sides of the vacuum tube are fixed with flexible silicone covers, and the vacuum tube has been modularized so it is physically separate from the PCB. Astell&Kern goes to great lengths to innovate and design these small components that make a big difference in the quality and sound of our products that no other manufacturer can match. A structure that uses magnetic forces to float the amp in the air, thus minimising noise from the vacuum tube itself, which is generated when it is exposed to mechanical impact or vibration.


TERATON ALPHA is Astell&Kern's ultimate Sound Solution to produce audio playback that is close to the original sound through the audio output interface by use of effective power noise removal, efficient power management and amplification with minimal distortion. TERATON ALPHA features Astell&Kern's patented technologies, which are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.

TERATON ALPHA features Astell&Kern's patented technologies, which are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.

ReplayGain Automatically and Uniformly Adjusts Playback Volume

ReplayGain, which adjusts sound sources with different volumes to an identical level, has been applied. Now, enjoy your own playlists seamlessly through the ReplayGain feature on SP2000T.

* ReplayGain supports up to 24-bit/192 kHz sound sources.

AK File Drop to enjoy wireless transfers

The new AK File Drop function in the SP2000T makes files transfers easier and more convenient. Using AK File Drop, you can freely transfer files wirelessly through a PC, smartphone, or FTP program located on the same network. Music file management is now possible with a cableless, wireless solution.

Navigation bar for easier navigation

Wireless Hi-Fi Sound Through BT Sink
The newly introduced BT Sink function connects the SP2000T to an external device via Bluetooth, similar to connecting a smartphone with a BT speaker. Music from an external device, such as a smartphone can now be played back in high-quality on the SP2000T using the BT Sink function.

BT Connect (RX Mode/BT Sink) BT Connect (RX Mode/BT Sink) BT Connect (TX Mode) BT Connect (TX Mode)

Real-Time Playback and AMP Mode Information Reflected by Light
Through the softly dispersing LED light, Users are notified of the bit depth information of the song being played or the current AMP mode.


Model  SP2000T
Body Colour  Onyx Black
Body Material  Aluminium
Display  5inch FHD 1920 x 1080 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
Output Level  Unbalanced 3.0Vrms / Balanced 6.0Vrms (Condition No Load)
CPU  Quad-Core
DAC  ESS ES9068AS x4 (Quad-DAC)
Vacuum Tube  KORG Nutube 6P1
Decoding  Support up to 32bit / 384Hz Bit-to-Bit Playback
Input  USB Type-C input (for charging & PC & MAC)
Outputs  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 a/b/g/n/ac (2.4/5GHz)
Bluetooth  V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
Dimensions  3.07 ”(78.1 mm) [W] x 5.55 ”(141.1 mm) [H] x 0.68 ”(17.5 mm) [D]
Weight  about 10.89 oz (309 g)
Feature Enhancements  Firmware upgrades supported (OTA)
Audio Performance
Frequency Response  ±0.024dB (Condition: 20Hz~20kHz) Unbalanced / ±0.038dB (Condition: 20Hz~20kHz) Balanced
  ±0.027dB (Condition: 20Hz~70kHz) Unbalanced / ±0.052dB (Condition: 20Hz~70kHz) Balanced
Signal to Noise Ratio  121dB @ 1kHz, Unbalanced / 123dB @ 1kHz, Balanced
Crosstalk  -137dB @ 1kHz, Unbalanced / -142dB @ 1kHz, Balanced
THD+N  0.0003% @ 1kHz, Unbalanced / 0.0003% @ 1kHz, Balanced
IMD SMPTE  0.0004% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz (4:1) Balanced
Output Impedance  3.5mm (1ohm), 2.5mm (1.5ohm), 4.4mm(1.5ohm)
Clock source
Clock Jitter  25ps(Typ)
Reference Clock Jitter  70ps
Capacity  4,200mAh 3.8V Li-Polymer Battery
Playback Time  About 9 hours (Standard : FLAC, 16bit/44.1kHz, Unbalance, Volume 50, LCD Off, LED On, OP AMP Mode)
Charge Time  About 3.5 hours (Standard - 9V/1.67A Fast charging)
  About 5 hours (Standard - 5V/2A General charging)
Built-in Memory  256GB [NAND]
External Memory  microSD (Max. 1TB) x1
Supported OS  Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up


Colour: Black
Portable: Yes
Product Type: Hi Res Audio Player
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