[Astell&Kern] A&ultima SP2000T Portable Music Player

The SP2000T combines the OP AMP configuration of our SP2000—the culmination of Astell&Kern's finest audio technology—with a nostalgic vacuum TUBE AMP, adding a vintage feel to the portable player. Equipped with the portable-friendly dual-triode KORG Nutube, which features an anode grid filament structure that operates the same as a triode vacuum tube, this smaller component, consumes far less power, yet delivers the same audio with rich overtones. The Nutube also offers a reliable continuous playback time of approximately 30,000 hours with support for the player’s onboard 2.5mm, 3.5mm and 4.4mm headphone output jacks.
The new innovative HYBRID MODE brings together the distinctive sonic DNA of the detailed OP-AMP and expressive TUBE AMP modes, while providing five options with different mix ratios of each amp’s sound characteristics to best serve the music being played.
The SP2000T is equipped with four ES9068AS DACs, with two DACs per channel dedicated for decoding. The result is a more detailed and balanced sound with great depth and spatial realism. This latest model is also the first to feature Replay Gain functionality that automatically and uniformly adjusts volume playback from sound sources up to 24-bit/192 kHz so playlists can be enjoyed throughout without reaching for the volume.

General Specifications:
Body Colour: Onyx Black
Body Material: Aluminium
Display: 5.0-inch touchscreen, FHD 1920 x 1080 pixels
Supported Audio Formats： WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
CPU： Quad-core
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), DSD512 (1bit, 22.4MHz) Stereo

Output Level： Unbalanced 3Vrms │ Balanced 6Vrms (Condition No Load)
Storage Capacity： Built-in Memory: 256GB [NAND]
External Memory: microSD x1 (Max. 1TB)
Vacuum Tube： KORG Nutube 6P1 (Made in Japan)
Decoding： Support up to 32bit / 384kHz 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" (78.1mm)[W] x 5.55" (141.1mm)[H] x 0.68" (17.5mm)[D]
Weight： about 10.89oz (309g)
Feature Enhancements： Firmware upgrade supported (OTA)
Battery Capacity： 4,200mAh 3.8V Li-Polymer
Charge Time： About 3.5hours (9V / 1.67A Fast Charging) | 5hours (5V 2A General Charging)
Playback Time： About 9hours (Standard: FLAC, 16bit, 44.1kHz, Unbalanced, Vol.50, LCD Off, LED On, OP AMP Mode)
Supported OS: Windows 7, 8, 10 (32/64bit), MAC OS X 10.7

Audio Specifications:
DAC: ESS ES9068AS x4 (Quad-DAC)
Frequency Response:
• ±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:
• Unbalanced Out 3.5mm (1ohm)
• Balanced Out 2.5mm (1.5ohm), 4.4mm (1.5ohm)
Clock Source: 25ps (Typ), 70ps Ref

In Box Accessories:
Genuine Leather Case, Screen Protector, Type-C Cable