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Astell & Kern A&ultima SP3000 Digital Audio Player - Discontinued

Product SKU: SP3000 black

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Product Details

↓ Details provided by Astell & Kern
(Specifications and appearance of this product are subject to change without notice)

Astell & Kern A&ultima SP3000 Luxury Meets Innovation

Luxury Meets Innovation, SP3000

Astell&Kern has set the standard for perfect sound using the latest innovative technology with the A&ultima series. The A&ultima SP3000 is the newest flagship product that is the essence of everything learned and engineered over the last 10+ years of digital music processing.

A&ultima SP3000 is the world’s first DAP with independent Dual Audio Circuitry and the latest DAC with HEXA-Audio Circuitry structure, and uses all audio technologies and the best materials that lets you feel the overwhelming impact of sound and music.

Experience perfection firsthand with the true next-generation flagship, A&ultima SP3000, the pinnacle of audio players.

  • World’s first use of Stainless Steel 904L for DAP body material
  • World's first DAP with complete separation of digital and analog signal processing (Using latest Flagship DAC chip AK4499EX from Asahi Kasei)
  • Stunning Audio Performance with Independent Dual Audio Circuitry
  • Equipped with High-Performance Qualcomm Snapdragon 6125 Octa-Core CPU
  • New Experience in the Graphic User Interface
  • Support for aptX™-HD and LDAC
  • AK4499EX Quad-DAC
  • Octa-Core Snapdragon
  • BT 5.0 aptX™-HD, LDAC
  • NATIVE DSD 512
  • SNR 130dB
  • Roon Ready

Material Innovations

World’s First Use of Stainless Steel 904L for DAP Body Material

To achieve the goal of the A&ultima series, which is 'to provide the best value that no one can imitate while using the most innovative and uncompromising design and craftsmanship', the SP3000 uses 904L stainless steel material that has never been attempted before in a portable audio player. Using this material has expanded its value from just a digital device to the realm of a luxury good.

904L stainless steel is harder and more difficult to process than general stainless steel requiring significantly more time and effort. However, due to its excellent durability and corrosion resistance, it has a characteristic that does not lose its beauty and is why it is used in expensive luxury watches where perfection in all materials and parts must be pursued with an irreplaceable and wonderful luster.

Experience the uncompromising beauty and luxury of the SP3000 produced by Astell&Kern’s experienced craftsmanship.

Astell & Kern A&ultima SP3000 Stainless Steel


The Essence of A&K Audio Technologies Merged Into the SP3000

In order to develop the ultimate audio player that has never been experienced before, not only do we use the latest DAC and technology available, but we use the innovative audio technology of TERATON ALPHA, AK's Ultimate Sound Solution, which has been refined for the SP3000.

TERATON ALPHA, engineered through endless research, is Astell&Kern's unique technology that has been designed to produce audio playback that is close to the original sound through effective power noise removal, efficient power management and unwavering amplification, and a fully converted audio output interface. HEXA-Audio Circuitry structure and independent dual audio circuit, implemented for the first time in the SP3000, are paired together with TERATON ALPHA's sound solution to create the purest original sound.

Astell & Kern A&ultima SP3000 Tetron Alpha

First Use of AKM’s Latest Flagship DAC

Complete Separation of Digital and Analog Signals

The SP3000 is a flagship product with the latest technology and uncompromising design. Astell&Kern worked with AKM from the initial development stage to develop the DAC and circuit structure.

As a result of the collaboration, the world's first four AK4499EX DACs, AKM's latest flagship, were applied to the SP3000, and the innovative HEXA-Audio Circuitry structure in which two AK4191EQs that process digital signals are applied separately, complete the amazing sound that can only be found from Astell&Kern.

Most digital players process digital and analog signals together inside the DAC. However, the SP3000’s advanced HEXA-Audio Circuitry structure reduces the noise of the digital signal input through the AK4191EQ, a separate digital delta-sigma modulator, and the AK4499EX DAC is then designed to process the analog signals separately. By applying this unique design, digital and analog signal processing that is physically separated has been achieved for the first time in a digital audio player, and the overwhelming SNR (Signal-to-Noise Ratio) is maximized, making it possible to experience an incredible level of sound that has never been experienced before.

Astell & Kern A&ultima SP3000 DAC Circuit

Silver Plated Shield Can
A shield can is applied to prevent various noise and electromagnetic interference from affecting the audio block. The SP3000 takes it a step further to achieve excellent audio performance and perfect shielding by applying highly conductive, high-purity silver on the existing shield can, and physically separating digital and analog signals.

Stunning Audio Performance with Independent Dual Audio Circuit

In order to create a truly innovative DAP, not just a great DAP, we tried to overcome the limitations of sound by envisioning an independent dual audio circuit that has never been attempted by anyone with a HEXA-Audio Circuitry structure with unbalanced and balanced outputs.

Almost all other DAPs, including Astell&Kern, use an internal DAC for both unbalanced and balanced outputs. Since the signal from the DAC is divided into unbalanced and balanced then delivered to the AMP, an Audio Switch is essential. However, when using a switch, there is a limit to the range that can receive the signal sent by the DAC, so most DAPs reduce the signal size first and then when the signal is transmitted back to the amplifier, it is necessary to restore the original signal size. This causes a limitation in improving the audio performance.

To overcome the limitations, our engineers designed a HEXA-Audio Circuitry structure using two AK4191EQs and four AK4499EXs, creating an innovative unbalanced and balanced independent dual audio circuit design. In result, the SP3000 achieves a SNR of 130dB, the best of any DAP available. You can feel the clean, pure delicacy of sound with the SP3000 that you cannot not experience in any other DAP.

SP3000 SNR 130dB
SP2000 SNR 125dB

* SP3000 and SP2000 are based on the condition no-load, Balanced, and there may be differences depending on the measurement method.

Astell & Kern A&ultima SP3000 Independent Dual Circuit

Drive Your Music

Latest Snapdragon Octa-Core CPU for the Newest Flagship Device

A&ultima SP3000 is equipped with a Snapdragon 6125 Octa-core processor, so you can enjoy the overwhelming sound, faster system response and a redesigned generation user interface that moves comfortably and smoothly.

Featuring a high-performance CPU and improved 8GB of DDR4 memory, which is twice the amount commonly used, the more powerful system is stable with fast and fluid movement.

The CPU, memory and wireless communication parts are configured as one module, with the digital circuit parts arranged in the same area creating a single system on a chip (SoC). This maximizes the efficiency of the overall circuit configuration by providing more audio-only circuit space as well as reducing heat and noise from digital circuits.

Astell & Kern A&ultima SP3000 Flagship Device

Heighten Your Music

New Experience in the Graphic User Interface

With the newly developed UX/UI, the SP3000 is focused on the process and experience of listening to music, and we wanted to become a ‘Player for music’ that one can feel this process.

The new theme is designed with a focus on the experience of rediscovering songs that you have forgotten; you can quickly browse through music categories with simple gestures. A convenient search feature along with album art has been added so that you can enjoy a digital display of CD album covers of your music collection.

It is designed to give you not only the pleasure of listening to music, but also to create fun when operating the device.

In addition, the Crimson theme, one of the main features of the new generation UI, is designed so that you can feel the appearance of the SP3000 on the screen.

The graphics are simple and unintrusive, focusing on usability and intuitiveness. Three key concepts, Edge, Simple, and Dark Mode, were used to improve usability and increase clarity with a style unique to AK. The black and red theme colors are chosen to reduce eye fatigue, maximize battery usage and reduce heat generation.

Astell & Kern A&ultima SP3000 Updated User Interface

Sound Design With DAC Filters

With the SP3000, you can have fun creating your own sound style by selecting various DAC filters provided by the DAC manufacturer. Design your own sound with 6 different DAC filters.

Sound Type Filter name Remarks Edge
Natural Tone Super Slow Roll-off No echo reproduces natural sound Ultra-Sharp
Acoustic Tone Short Delay Slow Roll-off Minimal echo reproduces original sound Sharp
Traditional Tone Slow Roll-off Minimal echo reproduces original sound Middle
Harmonic Sound Low dispersion Short echo reproduces original sound Middle
Acoustic Sound Short Delay Sharp Roll-off Post echo enhances bass sound Sharp
Traditional Sound Sharp Roll-off Pre and post echoes make powerful sound Slow

Digital Audio Remaster Technology for Even More Vivid Original Sound

The SP3000 is equipped with Digital Audio Remaster(DAR) technology, which was developed to deliver fine sound at higher sample rates. DAR technology is developed to upsample the sample rate of the sound source being played to go beyond the limits of the source format. The high sample rate allows more refined play and offers delicate and analog-like original sound, helping you to enjoy the richness of the original sound, subtle differences in the nuance of the music and rich sounds at a higher level.

DAR option Maximum Conversion Rate
PCM 44.1kHz range PCM will be converted to 352.8kHz for playback
48kHz range PCM will be converted to 384kHz for playback
No conversion will be made when playing DSD with this option selected
DSD PCM files lower than 96kHz will be converted to DSD128 for playback
PCM files over 96kHz will be converted to DSD256 for playback
DSD files below DSD256 will be converted to DSD256 for playback with this option selected

* The DAR function can be turned on and off and you may select it to suit the source sound and your own preferences.

* Max PCM rate 384kHz/DSD256 conversion play is supported, and the files will be converted to and played in the sample rates that fit the source sound.


Speaker effect when listening through headphones

In a headphone environment in which the left and right channels are clearly separated, ear fatigue may increase during prolonged listening. The moment you turn on Crossfeed, the experience of crisp, but comfortable sound begins.

Crossfeed mixes parts of the original signal from one channel and sends that signal to the opposite channel with a time difference to center the sound image.

Through the use of detailed settings such as Shelf Cutoff, Shelf Gain, and Mixer Level, you can set the level of crossfeed according to your listening preferences.

Astell & Kern A&ultima SP3000 Crossfeed

Real-Time Information Confirmed by Light

SP3000 features a LED volume wheel which displays various playback information, including volume level and bit-rate of the track currently playing.

* LED can be turned on or off according to user setting.

red - 16bit
green - 24bit
blue - 32bit
purple - DSD

Astell & Kern A&ultima SP3000 LED indicators


Supports Native DSD512, 32bit/768kHz

SP3000 supports Native DSD512 and up to 32bit/768kHz with Astell&Kern’s excellent audio technology, allowing you to fully enjoy your favorite music.

Adoption of 5.46 inch Full HD Display

Experience the SP3000 more conveniently and comfortably with a wide 5.46-inch, large-screen Full HD display.

AK File Drop to enjoy wireless transfers

The new AK File Drop function in the SP3000 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.

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 SP3000. * ReplayGain supports up to 24-bit/192 kHz sound sources.

QC 3.0 Fast Charging Supported

The SP3000 supports Qualcomm QC 3.0 fast charging, so you can charge your DAP faster and more efficiently than previous models, reaching a full charge in about 3.5 hours.

Wireless Hi-Fi Sound Through BT Sink

BT Sink function connects the SP3000 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 SP3000 using the BT Sink function.

Astell & Kern A&ultima SP3000 Supported Files

Premium Goat Leather Case

The SP3000 comes with a French goatskin leather case to protect and highlight the beauty of the 904L stainless steel body.

The case is made by ALRAN, located in Tarn in southern France, a historical tannery that was established in 1903 and has been manufacturing leather for over 100 years. It is one of the world’s leading tanneries, well-known for their natural leather manufacturing technology since the 1980’s. ALRAN is recognized as the best goatskin manufacturer and supplies other leading luxury brands such as H and L.

The leather case included with the SP3000 is developed with ALRAN Tannery's unique Hand-Boarding technology. This is a technology that processes the leather by rubbing it in various directions using wooden planks, so you can feel the texture of the surface. This process is unique compared to how other goatskin cases are produced.

Astell & Kern A&ultima SP3000 Premium Goat Leather Case


The interpretation of light and shadow shown in the SP3000 is expressed as “wrapped in light” whereas the previous SP1000 and SP2000 expressed light as spreading and scattering. The concept of the SP3000 depicts how light gathers and wraps around the wheel. This symbolizes that the SP3000 is the all-consuming culmination of all the technologies and capabilities that Astell&Kern has accumulated over the years. The polished stainless-steel body shines every moment, and the beautifully shimmering LED light and sharply machined ceramic panel further emphasize the luxury. The SP3000, which was created through thoughtful design and processing, offers the ultimate in beauty that matches the ultimate sound.

Astell & Kern A&ultima SP3000 Design


General Specifications

  • Model


  • Body Color

    Black, Silver

  • Body Material

    Stainless Steel 904L

  • Display

    Full HD 5.46” 1080x1920 Touch Display

  • Supported Audio Formats


  • Sample Rate

    PCM : 8kHz ~ 768kHz (8/16/24/32bits per Sample)
    DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo
    DSD256(1bit 11.2MHz), Stereo / DSD512(1bit 22.4MHz), Stereo

  • Output Level

    Unbalanced 3.3Vrms
    Balanced 6.3Vrms (Condition No Load)

  • CPU


  • DAC

    AKM AK4191 x2(Dual Modulator) & AK4499EX x4 (Dual + Dual DAC)

  • Decoding

    Support up to 32bit/768kHz 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

    3.24” (82.4mm)[W] x 5.48” (139.4mm)[H] x 0.72” (18.3mm)[D]

  • Weight

    About 17.39oz (493g)

  • Feature Enhancements

    Firmware upgrade supported (OTA: Over-The-Air)

Audio Performance

  • Frequency Response

    ±0.017dB (Condition : 20Hz~20kHz) Unbalanced / ±0.021dB (Condition : 20Hz~20kHz) Balanced
    ±0.022dB (Condition : 20Hz~70kHz) Unbalanced / ±0.031dB (Condition : 20Hz~70kHz) Balanced

  • S/N

    126dB @ 1kHz, Unbalanced / 130dB @ 1kHz, Balanced

  • Crosstalk

    -136dB @ 1kHz, Unbalanced / -145dB @ 1kHz, Balanced

  • THD+N

    0.0006% @ 1kHz, Unbalanced / 0.0004% @ 1kHz, Balanced


    0.0007%, 800Hz 10kHz (4:1), Unbalanced / Balanced

  • Output Impedance

    3.5mm(0.7ohm), 2.5mm(1.7ohm), 4.4mm(1.6ohm)

Clock Source

  • Clock Jitter

    25ps (Typ)

  • Reference Clock Jitter

    200 Femto Seconds

Storage Capacity

  • Built-in Memory

    256GB [NAND]

  • External Memory

    microSD x1 (Max. 1TB)


  • Capacity

    5,050mAh 3.8V Li-Polymer

  • Charge Time

    about 3.5hours (QC3.0 Charging)

  • Playback Time

    about 10 hours (Standard: FLAC, 16bit, 44.1kHz, Vol.80, LCD Off, Low Gain)

Supported OS

  • Supported OS

    Windows 10,11 (32/64bit)
    MAC OS X 10.7

Product Reviews

Astell & Kern A&ultima SP3000 Digital Audio Player - Discontinued

Customer Reviews
5.0 Based on 6 Reviews
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Brad P.
United States United States

What a player!

Have you ever listened to a music device and said to yourself, 'you must be kidding me'? I am still surprised when listening to this player. The background is black. A true black. No sound produced from this thing is fatiguing. It's just perfect. Trebles, mids and lows are perfectly balanced, round, and crystal clear. The OS is fast and easy to use. This player has rejuvenated my audiophile obsession.

Audio46 Astell & Kern A&ultima SP3000 Digital Audio Player Review
Derek R.
United States United States

A&Ultima SP3000

The Astell&Kern SP3000 is a great DAP, solid wide soundstage, deep bass and great quality throughout the mids and highs. Good battery life overall, the advertised 8 hours is achieved regularly. I haven't experienced any hiss with any of my IEMs (EE Odin, UM Indigo and Noble Audio Viking Ragnar), black background and overall a DAP that I have found to be worth the price.

sieu n.
United States United States

Very good

Very good DAP I like it

Nick B.
United States United States

Best machine ever!

This is the best DAP I ever got. Please do not miss it.

Jonathan M.
United States United States

The best of the best

I’ve owned every generation of A&K DAP since the very beginning. The SP3000 continues A&K’s track record of delivering significant improvements in both audio and experience when compared to the prior models. The vividness of high resolution music - 32bit DXD included - is goosebump inducing when paired with both my Final A8000s and 2022 Focal Utopias. The user experience is a joy to use and, as with the audio, a significant improvement over prior models. If I have a couple of small complaints one would be the size of the unit; it’s quite chunky and not exactly “pocketable” and the internal storage is a measly 256Gb. In this day and age and at this price that should be 1Tb, just like my phone. However, these are minor quibbles about an otherwise top tier, really enjoyable, DAP


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