Astell&Kern A&ultima SP3000T Portable Audio Player

The Astell&Kern A&ultima SP3000T blends true analogue warmth with cutting-edge digital engineering, featuring dual Raytheon JAN6418 vacuum tubes, a tri-amp system, advanced AKM DAC architecture, and a pure silver-plated stainless-steel chassis for uncompromising high-end audio performance.

Specifications:
Design & Build
Body Material: 316L stainless steel with 99.9% pure silver plating
Dimensions: 84.7 × 141.5 × 18 mm
Weight: approx. 483 g
Display: 5.5" Full HD (1080 × 1920) touchscreen
Case: Premium Perlinger shrunken calfskin + Alcantara (included)

Audio Hardware
DAC System:
Dual AK4191EQ modulators ×2
Dual AK4499EX DACs ×2

Vacuum Tubes:
Raytheon JAN6418 ×2 (real analogue tube stage)
Three adjustable Tube Current levels
AMP System: TRIPLE AMP SYSTEM (Tube / Op-Amp / Hybrid)

Output Levels:
Unbalanced: 3.3 Vrms
Balanced: 6.3 Vrms
Supported Audio Formats
WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
PCM: 8 kHz–768 kHz (8/16/24/32-bit)
DSD: Native DSD64 / 128 / 256 / 512 (up to 22.4 MHz)
Bit-to-Bit Playback: Up to 32-bit / 768 kHz

Connectivity
Outputs:
3.5mm unbalanced
3.5mm optical out
2.5mm balanced (4-pole)
4.4mm balanced (5-pole)
USB: USB-C (charging, data, DAC)
Wi-Fi: 802.11 a/b/g/n/ac (2.4/5 GHz)
Bluetooth 5.0: aptX HD, LDAC, LHDC

Performance
CPU: Qualcomm octa-core
Clock: 25 ps jitter, femtosecond reference clock
Frequency Response:
Unbalanced: ±0.005 dB (20–20kHz)
Balanced: ±0.003 dB (20–20kHz)

SNR:
120 dB (unbalanced)
124 dB (balanced)
THD+N:
0.0005% (unbalanced)
0.0004% (balanced)

Battery
Capacity: 5,050 mAh
Playback: approx. 10 hours (FLAC 16/44.1, Vol. 50, unbalanced)
Charging Time: approx. 3.5 hours (QC3.0)

Storage
Internal: 256 GB
External: microSD up to 1 TB

Software
Firmware: OTA updates supported
OS Compatibility: Windows 10/11, macOS X 10.7+

In the Box:
Astell&Kern A&ultima SP3000T Portable Audio Player
High-End Shrunken Calfskin Case
USB-C to USB-C Cable (1 m)
Screen Protectors ×3
Quick Start Guide