Astell&Kern A&ultima SP1000M Music Player DAP (Gold)

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Lightweight and portable, the SP1000M enables the user to enjoy original sound playback anytime and anywhere. It's the portable, baby brother of the A&ultima SP1000 or the top of the line player from Astell & Kern.

Main Features

Constantly striving to improve the audio experience, Astell&Kern attempted to match the audio quality of the SP1000 in a new product. Determined not to compromise sound quality while making a smaller, more accessible product, they ultimately developed the second product in the A&ultima line.

The “M” in SP1000M does not stand for one specific word, but rather encompasses many characteristics that the product aims to pursue.

  • MINI: Smaller than the SP1000
  • MOBILITY: More compact design for portability
  • MAXIMUM: Produces the highest-quality audio
  • MANIA: For users who are obsessed with true, original sound
  • MATE: Perfect anytime and anywhere
  • MOMENT: Free of distractions, get lost in the music
  • Octa-Core CPU for Next-Level Performance
  • AK4497EQ Dual DAC for Highest Sound Quality
  • 4.1 Inch HD Display
  • Highest Quality Audio of SP1000
  • Portable and Durable Aluminum Body
  • DNLA-Based AK Connect App
  • Open APP Service

Premium Portability

The A&ultima line of players by Astell&Kern feature the latest technology and high-end audio performance that is available in a portable player. The A&ultima SP1000M is equipped with two AK4497EQ DACs. A separate DAC (Digital to Analog Converter) is dedicated to each independent left and right audio channel, producing a wider soundstage and better stereo separation. With the addition of an Octa-Core CPU, the A&ultima SP1000M not only boots faster, but is able to process digital audio playback without lag or compromise in sound. This will provide the ultimate sound experience of any player currently on the market. Astell&Kern’s advanced audio design and signal management technologies used in the A&ultima SP1000M brings more power output with less noise and minimal distortion.

Vivid Images

Equipped with a 4.1 inch, HD-resolution screen, the A&ultima SP1000M provides sharp images and vivid colors to display album art, music playback and player information. The redesigned, music-centric GUI that debuted on the full-sized SP1000 is also used on the SP1000M. USB Type-C 3.0 support allows data transfers that are twice as fast as other Astell&Kern players. The A&ultima SP1000 also provides 10 hours of music playback and includes support for fast charging.

Using Open APP Service

The Open APP Service enables the user to install specific APK music streaming apps to the device. Copy the desired APK into the Open Service folder of the product and install the relevant App in the Menu-Service of the product.

Using open APP Service

Advanced User Interface

While the A&ultima SP1000M has the same intuitive menu composition as its predecessor, the SP1000, its user interface has been improved with the optional Virtual Back Key, which enables users to control the device more easily and conveniently.

Use the Floating feature to place the Virtual Back Key at a desired location or disable it by simply dragging it to the middle of the screen or turning it off from the Settings menu.

APP Services Screenshots

Great Performance for the Ultimate Experience

The A&ultima SP1000M is equipped with an octa-core CPU which allows the player to produce the exact musical detail present in the original recording without distortion and provides a quick, lag-free operation.

The A&ultima SP1000M features faster booting times, speedy file transfers, lag-free processing and a new intuitive user interface for the ultimate player experience.

Octa-Core comparison chart

Ultimate Sound Quality

The latest AK4497EQ dual-DAC design and the upgraded CPU in the A&ultima SP1000M allows for accurate playback of native 32bit/384kHz audio with no compromise on sound quality. The music is played back, bit-for-bit, just as the artist and engineer intended for it to be heard.

The A&ultima SP1000M also supports native bit-to-bit DSD playback up to 11.2MHz for the best sound possible.

32-bit bit-to-bit playback chart

Faster Charging, Quicker File Transfer

Next generation USB Type-C support allows file transfer speeds up to 10Gbps and supports both data transfer and charging from the same cable.

USB 3.0 protocol transfers data twice as fast when compared to other Astell&Kern players. Charging with a fast charger (at 9V/1.67A) takes only 3 hours and allows up to 10 hours of continuous playback.

* The maximum 10-hour continuous play is based on 16-bit/44 kHz, FLAC file format, screen off, 75 of volume playback.
* Fast charger (9V/1.67A) and general Charger (5V/2A) are not included in the package.

Astell&Kern SP1000M charging times

Design Concept

Inspiration for the design of the SP1000M comes from irregularly patterned natural stones combined with Lapis Lazuli, one of the oldest of all gems, to create the SP1000M’s color - Lapis Blue.

This special gold edition is plated with 99.7% pure gold.

The dakota leather used in the SP1000M bundle leather case is a premium vegetable leather made from an Italian tanner named 'Ra Perla Azura', which is a manufacture of Italian and French origin.

'La Perla Azura' was founded in 1967 and has a long history over 50 years. It is located in 'Santa Croce sull´Arno' which is only high-end leather production district in Italy.

SP1000M Gold front view
SP1000M Gold back view
SP1000M Gold in included brown case


The Royal Gold edition of the SP1000M includes 256GB of internal memory with one microSD card slot supporting additional memory (largest microSD cards currently available in retail are 512GB, which are supported).

Astell&Kern SP1000M technology and features

Additional features of the A&ultima SP1000M include support of native playback of 32-bit/384kHz high-resolution PCM audio and native playback of DSD audio, up to Quad-rate (DSD256), 4.2Vrms Balanced output, a Parametric EQ (PEQ), VCXO Reference Clock (Femto Clock) for minimal jitter, Wi-Fi connectivity, support for the AK Connect app, USB DAC function, DLNA networking support, OTA software updates, digital audio output via USB, apt X HD Bluetooth, and support for high-resolution music streaming services including TIDAL, MOOV and Groovers+ (support for streaming services varies by country).

New firmware will debut with the SP1000M that adds Android APK support, allowing users to install additional music streaming services to their player by simply copying and installing the corresponding APK file for the music service they wish to add.

Astell&Kern Music Player Comparison


A&ultima SP1000M

Lapis Blue(LB)
Onyx Black(OB)
Royal Gold(RG)
4.1" HD Touchscreen
DAC: AKM AK4497EQ x2
Up to 32bit / 384kHz
Bit-to-Bit Decoding;
Native DSD
USB Type-C Input
Unbalanced Out (3.5mm)
Balanced Out (2.5mm)
2.67" x 4.6" x 0.66"
7.16 oz(LB)(OB) / 10.79 oz(RG)
10.5-hour Playback
12-hour charge via computer
5.5 hours via 5V/2A)
2.83 hours via 9V/1.67A Fast Charge
128GB Internal(LB)(OB)
256GB Internal(RG)
microSD (Max 400GB) x1
Window 7, 8, 10 (32/64bit)
MAC OS X 10.7+
Wi-Fi & Bluetooth Capable

A&ultima SP1000

Stainless Steel(SS)
Onyx Black(OB)
Stainless Steel(SS)(OB)
5" HD Touchscreen
DAC: AKM AK4497EQ x2
Up to 32bit / 384kHz
Bit-to-Bit Decoding;
Native DSD
USB Type-C Input
Unbalanced Out (3.5mm)
Balanced Out (2.5mm)
2.98" x 5.2" x 0.64"
13.64 oz(SS)(OB) / 13.68 oz(C)
12-hour Playback
12-hour charge via computer
5 hours via 5V/2A
2.33 hours via 9V/1.67A Fast Charge
256GB Internal
microSD (Max 400GB) x1
Window 7, 8, 10 (32/64bit)
MAC OS X 10.7+
Wi-Fi & Bluetooth Capable


2019 iF Design Award
2019 Reddot Design Award


Astell n Kern Magazine Guide
Astell&Kern Magazine

Guides & Reviews
by Moon Audio

Digtial Trends Review
Digital Trends

by Andy Boall
Jan. 2019

Headfonia Review

by Lieven
Feb. 2019

Audio Head Review

by Staff
Sep. 2018

Inner Fidelity Review
Inner Fidelity

by Rafe Arnott
Sep. 2018

What HiFi Review
What HiFi?

by Staff
Sep. 2018


SP1000M Dimensions

General Specifications

Body Color
Royal Gold
Body Material
Gold plated Brass
4.1 inch (720 x 1280) Touchscreen
Supported Audio Formats
Sample Rate
PCM: 8kHz ~ 384kHz (8/16/24/32bits per Sample)
DSD Native: DSD64(1bit 2.8MHz), Stereo
DSD128(1bit 5.6MHx), Stereo
DSD256(1bit 11.2MHz), Stereo
Output Level
Unbalance 2.1 Vrms / Balance 4.2Vrms (Condition No Load)
AKM AK4497EQ x2 (Dual DAC)
Support up to 32bit / 384kHz Bit to Bit Decoding
USB type-C (3.0) input (data transfer, PC & Mac) / Connection Mode : MTP (Media Device)
PHONES (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
802.11 b/g/n (2.4GHz)
V4.1 (A2DP, AVRCP, aptX™ HD)
2.67" x 4.60" x 0.66" (67.9mm x 117mm x 16.9mm)
10.79 oz (306 g)
Feature Enhancements
Firmware upgrades supported (OTA)

Audio Performance

Frequency Response
±0.062dB (Condition: 20Hz~20kHz) Unbalance / ±0.061dB (Condition: 20Hz~20kHz) Balance
±0.68dB (Condition: 10Hz~70kHz) Unbalance / ±0.67dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio
120dD @ 1kHz, Unbalance / 123dB @ 1kHz, Balance
138dD @ 1kHz, Unbalance / 144dB @ 1kHz, Balance
0.0007% @ 1kHz, Unbalance / 0.0006% @ 1kHz, Balance
0.0004% 800Hz 10kHz(4:1) Unbalance & Balance
Output Impedance
Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)

Clock Source

Clock Jitter
Reference Clock Jitter
200 Femto Seconds


3,300mAH 3.7V Li-ion Battery
Continuous Playback Time
Up to 10 hours (Standard - MUSIC FLAC, 16-bit/44khz, Volume 75, LCD Off)
Charge Time
About 3 hours (Standard - 9V/1.67A Fast charging)


Built-in Memory
256GB [NAND]
External Memory
microSD (Max 400GB) x 1


Supported OS
Windows 7,8,10 (32/64bit)
MAC OS X 10.7 and up

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