Astell&Kern A&ultima SP4000 MQA Digital Audio Player
- Enhanced signal processing capabilities with Octa audio circuit architecture
- Supports High Driving Mode for delivering premium sound quality
- Minimizes group delay with proprietary ESA (Enhanced Signal Alignment) technology
- Ultra Low Noise LDO Regulator for top-tier noise suppression
- Precision sound achieved with Any Layer Type PCB
- Equipped with a 99.9% Pure Copper Shield Can
- First Astell&Kern Device to Support Full Android OS
- First Astell&Kern Device to Feature Advanced DAR Technology
- Features 4.5th generation UI, combining functionality and emotional design
- Astell&Kern A&ultima SP3000T player
- Leather Case & Protective Film
- microSD Card Slot Cover
- USB Type-C Cable
- Quick Start Guide
- Warranty Card
Product Availability | Available (current model) |
Product Type | Digital Audio Player |
Style/Type | Portable |
Features | WiFi, Bluetooth, Expandable Memory/Storage, Internet Radio, Dual Headphone Output, High-Res Audio Certified, DSD, MQA (Master Quality Authenticated), 2.4GHz/5GHz Dual-Band WiFi, roon ready |
Connectivity | Wireless & Wired |
DAC | AKM AK4191 x2 (Dual Modulator) & AKM AK4499EX x2 (Dual DAC) |
Op-Amp / Amplifier | RAYTHEON JAN6418 x2 (Vacuum Tube) |
CPU | Qualcomm Snapdragon 6125 Octa-core |
Internal Storage Capacity | 256GB |
Expandable Storage | Yes |
Expandable Storage Capacity | 1TB (1024MB) |
Bluetooth Version | v5.0 |
Bluetooth Codecs | SBC, AAC, aptX HD, LDAC |
Waterproof Rating | IPX0 – No protection |
Sampling / Bitrate | PCM: 8kHz ~ 768kHz (8/16/24/32bits per sample), DSD Native: DSD64(1bit 2.8MHz), DSD128(1bit 5.6MHz), DSD256(1bit 11.2MHz), DSD512(1bit 22.4MHz) |
Frequency Response (Hz) | 20Hz~70kHz |
Signal-to-Noise Ratio (SNR) | 120dB @ 1kHz, Unbalanced │ 124dB @ 1kHz, Balanced |
Total Harmonic Distortion (THD) | 0.0005% @ 1kHz, Unbalanced │ 0.0004% @ 1kHz, Balanced |
Voice Assistants | - None - |
Streaming Services | Roon |
Mic for Calls/Communication | None |
Input Connectivity Options | microSD [External Storage], USB Type-C (USB-C) [Charging], WiFi |
Output Connectivity Options | 2.5mm (4-Pole) [Balanced], Optical mini-TOSLINK (SPDIF), 3.5mm Stereo, 4.4mm (5-Pole) [Balanced], Bluetooth |
Network Device Output Options | WiFi |
Driveability (Output Impedance) (Ω) | Unbalanced Out 3.5mm (1.5ohm) │ Balanced Out 2.5mm (1.5ohm), 4.4mm(1.4ohm) |
Colour | Grey |
Battery Life (Hours) | About 10 hours (Standard : FLAC, 16bit, 44.1kHz, Unbalanced, Vol.50, LCD Off, LED On, OP AMP Mode) |
Product Dimensions | 3.34” (85mm)[W] x 5.89” (149.8mm)[H] x 0.76” (19.5mm)[D] |
Product Weight (g) | About 21.7oz (615g) |
Additional Tech Specs | General Specifications
Clock Source
Storage Capacity
Battery
|
Package Contents |
|
Warranty | 1 year warranty (local) |
If you're based in Singapore,
- spend $300 or more for free doorstep delivery1.
($250 for Silver/Gold/Platinum VIP members) - add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2.
- self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here.
- and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf.
GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome.
View additional Terms & Conditions associated to local doorstep delivery service.
Friends from Overseas,
- we do ship internationally.
- shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher.
- shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout.
- do be aware of additional import tax/VAT that may apply.
View additional Terms & Conditions associated to international door to door shipping service.
1 Terms and condition do apply for free delivery. For more information, click here to view.
2 View our updated list of local delivery options.
3 View our updated list of international carriers.
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Product Availability | Available (current model) |
Product Type | Digital Audio Player |
Style/Type | Portable |
Features | WiFi, Bluetooth, Expandable Memory/Storage, Internet Radio, Dual Headphone Output, High-Res Audio Certified, DSD, MQA (Master Quality Authenticated), 2.4GHz/5GHz Dual-Band WiFi, roon ready |
Connectivity | Wireless & Wired |
DAC | AKM AK4191 x2 (Dual Modulator) & AKM AK4499EX x2 (Dual DAC) |
Op-Amp / Amplifier | RAYTHEON JAN6418 x2 (Vacuum Tube) |
CPU | Qualcomm Snapdragon 6125 Octa-core |
Internal Storage Capacity | 256GB |
Expandable Storage | Yes |
Expandable Storage Capacity | 1TB (1024MB) |
Bluetooth Version | v5.0 |
Bluetooth Codecs | SBC, AAC, aptX HD, LDAC |
Waterproof Rating | IPX0 – No protection |
Sampling / Bitrate | PCM: 8kHz ~ 768kHz (8/16/24/32bits per sample), DSD Native: DSD64(1bit 2.8MHz), DSD128(1bit 5.6MHz), DSD256(1bit 11.2MHz), DSD512(1bit 22.4MHz) |
Frequency Response (Hz) | 20Hz~70kHz |
Signal-to-Noise Ratio (SNR) | 120dB @ 1kHz, Unbalanced │ 124dB @ 1kHz, Balanced |
Total Harmonic Distortion (THD) | 0.0005% @ 1kHz, Unbalanced │ 0.0004% @ 1kHz, Balanced |
Voice Assistants | - None - |
Streaming Services | Roon |
Mic for Calls/Communication | None |
Input Connectivity Options | microSD [External Storage], USB Type-C (USB-C) [Charging], WiFi |
Output Connectivity Options | 2.5mm (4-Pole) [Balanced], Optical mini-TOSLINK (SPDIF), 3.5mm Stereo, 4.4mm (5-Pole) [Balanced], Bluetooth |
Network Device Output Options | WiFi |
Driveability (Output Impedance) (Ω) | Unbalanced Out 3.5mm (1.5ohm) │ Balanced Out 2.5mm (1.5ohm), 4.4mm(1.4ohm) |
Colour | Grey |
Battery Life (Hours) | About 10 hours (Standard : FLAC, 16bit, 44.1kHz, Unbalanced, Vol.50, LCD Off, LED On, OP AMP Mode) |
Product Dimensions | 3.34” (85mm)[W] x 5.89” (149.8mm)[H] x 0.76” (19.5mm)[D] |
Product Weight (g) | About 21.7oz (615g) |
Additional Tech Specs | General Specifications
Clock Source
Storage Capacity
Battery
|
Package Contents |
|
Warranty | 1 year warranty (local) |
No Reviews Available Yet. Leave Your Review

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