The SP3000M represents the culmination of Astell&Kern’s quest to create an audiophile player that combines sound performance with true portability. As the successor to the renowned SP3000, this new model retains the revolutionary audio architecture of its predecessor while significantly reducing its size. Equipped with four reference AK4499EX digital-to-analog converters (DACs) and an innovative HEXA structure that completely separates digital and analog signals, the SP3000M delivers uncompromising sound quality in a format finally suited for mobile use. With a signal-to-noise ratio of 130 dB, identical to that of the SP3000 despite its reduced size, this player pushes the boundaries of what is possible in a portable device.
Miniaturized Sound Excellence
The technical achievement of the SP3000M lies in its ability to maintain exceptional audio performance despite its reduced size. Astell&Kern met this challenge by preserving the HEXA architecture of the SP3000, a sophisticated structure that physically separates digital and analog signals. This approach, unique in the industry, eliminates the interference that typically degrades sound quality.
The SP3000M integrates four AK4499EX DACs from AKM, considered the best converters on the market, paired with two AK4191EQ delta-sigma modulators dedicated to digital signal processing. This configuration allows the SP3000M to achieve a signal-to-noise ratio of 130 dB, an exceptional value that reflects the purity of the reproduced audio signal.
The physical separation of digital and analog circuits represents a major advancement compared to traditional players, which generally process these two types of signals together within the DAC. In the SP3000M, digital signals are first processed by the AK4191EQ modulators, significantly reducing digital noise before the signal is transmitted to the AK4499EX DACs, which are exclusively responsible for analog processing.
Uncompromising Audio Design
Most digital players, including some Astell&Kern models, use a single internal DAC to handle both unbalanced and balanced outputs. This approach requires splitting the signal after the DAC and using an audio switch, which imposes limitations on the signal’s dynamic range. To work around this issue, manufacturers typically reduce the signal amplitude before restoring it during transmission to the amplifier, a process that inevitably compromises sound quality.
The SP3000M takes a radically different approach with its independent dual audio circuits. Each circuit has its own set of DACs and modulators, one dedicated to the unbalanced output (3.5 mm) and the other to the balanced output (4.4 mm). This architecture eliminates the need for an audio switch and allows the signal to retain its full integrity up to the amplifier.
This innovative design enables the SP3000M to deliver superior audio performance, with a total harmonic distortion of only 0.0005% in unbalanced mode and 0.0003% in balanced mode. Crosstalk is also exceptional, reaching -140 dB in unbalanced mode and -144 dB in balanced mode, values that demonstrate the perfect separation of stereo channels.
TERATON ALPHA Technology
At the heart of the SP3000M lies TERATON ALPHA technology, the result of extensive research by Astell&Kern to create the ultimate sound solution. This proprietary technology aims to reproduce the original sound with maximum fidelity through several complementary innovations.
TERATON ALPHA is based on four fundamental pillars: effective power noise elimination, optimized energy management, constant amplification, and a fully converted audio output interface. The goal is to preserve the integrity of the audio signal at every stage of processing, from digital playback to analog signal conversion.
To protect the audio circuits from electromagnetic interference, Astell&Kern applied a high-purity silver layer to the SP3000M’s internal shielding. This additional protection contributes to the device’s excellent audio performance by effectively isolating sensitive components from external disturbances.
TERATON ALPHA technology allows the SP3000M to deliver an impressive output level of 3.3 Vrms in unbalanced mode and 6.3 Vrms in balanced mode, sufficient to drive even the most demanding headphones without external amplification.
Power and Responsiveness
The SP3000M is equipped with a Qualcomm Snapdragon 6125 octa-core processor, offering computing power far superior to that of conventional audiophile players. This configuration ensures smooth navigation through the user interface and flawless decoding of the most demanding high-resolution audio formats.
Unlike most digital players that settle for 4 GB of RAM, the SP3000M features 8 GB of DDR4 memory, doubling the usual capacity. This generous memory allocation guarantees optimal system responsiveness, even when playing large files or using streaming applications.
The SP3000M’s system architecture adopts a modular approach, with the processor, memory, and wireless communication components grouped into a single module. This configuration optimizes the overall circuit layout by freeing up more space for audio components while reducing heat and noise generated by digital circuits.
The SP3000M supports an impressive variety of audio formats, including WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, and DSF. It can decode PCM files up to 768 kHz (8/16/24/32 bits) and DSD up to DSD512 (1 bit, 22.4 MHz), covering the entire spectrum of current audiophile formats.
Connectivity and Compatibility
The SP3000M offers comprehensive connectivity to suit all uses. Its 3.5 mm unbalanced output has an output impedance of just 0.6 ohms, while its 4.4 mm balanced output has an impedance of 1.2 ohms, enabling it to efficiently drive a wide range of earphones and headphones.
For connection to a computer or charger, the SP3000M features a versatile USB Type-C port. This port not only charges the device but also connects it to a PC or Mac for file transfers or use as an external USB DAC.
Wireless connectivity is also well-supported, with Bluetooth 5.0 supporting numerous high-resolution codecs such as Qualcomm aptX HD, LDAC, and LHDC. This extensive compatibility allows the SP3000M to be used with wireless earphones or headphones while maintaining optimal sound quality.
The SP3000M is compatible with Windows 10 and 11 (32/64-bit) as well as macOS X 10.7 and later versions, making it easy to manage its music library from any computer.
Regarding storage, the SP3000M features a generous 256 GB of internal memory, expandable via a microSD slot supporting cards up to 1.5 TB. This capacity allows for storing thousands of albums, even in particularly large high-resolution formats.
Design and Ergonomics
The SP3000M’s design combines refined aesthetics with functionality. Its black aluminum casing boasts sleek, modern lines with meticulous attention to detail. The volume wheel, a signature element of Astell&Kern players, takes center stage in the design and provides precise control over sound levels.
The back of the device features cross-hatched patterns engraved on a glass surface, reminiscent of the SP3000 design while adding a distinctive touch with two patterns converging at the corners, creating a unique “tension” concept.
The 4.1-inch HD touchscreen (720 x 1280 pixels) offers a responsive and bright control surface, making it easy to navigate the music library and access the device’s various features.
A visually distinctive feature of the SP3000M is its analog VU meter, accessible from the lower navigation bar. Beyond its utility in visualizing sound levels, this element adds a retro touch that enhances the listening experience and deepens immersion in the music.
Despite its exceptional performance, the SP3000M remains relatively compact with dimensions of 69.1 x 119.6 x 18.8 mm and a weight of 237 g, representing a significant reduction compared to the SP3000 while preserving its full sound capabilities.
Battery Life and Daily Use
The SP3000M is equipped with a 4200 mAh lithium-polymer battery, offering approximately 10 hours of playback in standard mode (FLAC, 16-bit, 44.1 kHz, volume at 80%, screen off). This endurance allows users to enjoy its exceptional sound quality throughout the day without worrying about running out of power.
Recharging is quick thanks to compatibility with Quick Charge 3.0 technology, enabling a full charge in just 3.5 hours. This feature is particularly valuable for on-the-go users who rarely have long periods to recharge their devices.
The SP3000M’s user interface has been optimized for smooth and intuitive navigation. The custom operating system, based on Android, fully leverages the power of the octa-core processor and 8 GB of RAM to deliver exemplary responsiveness, even when using streaming apps or navigating a large music library.
The SP3000M’s operating temperature range extends from 0°C to 40°C, allowing it to adapt to most usage environments. This robustness, combined with the high-quality aluminum casing, makes the SP3000M a reliable companion for demanding audiophiles, whether at home or on the go.
What is the main difference between the SP3000M and the original SP3000?
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The SP3000M retains the HEXA audio architecture and exceptional sound performance of the SP3000 but in a more compact and lightweight format. The dimensions have been reduced, and the weight lightened (237g compared to over 300g for the SP3000), without any compromise on audio quality. The SP3000M maintains the same signal-to-noise ratio of 130 dB as its predecessor, a remarkable technical achievement given its reduced size.
Why is the HEXA architecture so important for sound quality?
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The HEXA architecture represents a major advancement as it physically separates the digital and analog signal processing circuits. In most players, these signals are processed together within the DAC, generating interference that degrades sound quality. With the HEXA structure, digital signals are first processed by dedicated AK4191EQ delta-sigma modulators, and then analog signals are handled separately by AK4499EX DACs, eliminating interference and preserving signal purity.
Can the SP3000M be used as an external USB DAC?
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Absolutely, the SP3000M can function as a high-quality external USB DAC when connected to a computer via its USB Type-C port. This feature allows users to benefit from its exceptional digital-to-analog conversion to enhance their computer’s sound quality. The SP3000M is compatible with Windows 10/11 and macOS X 10.7 and later versions. Once connected, it appears as an external audio device, enabling the use of its four AK4499EX DACs and HEXA structure for all your digital audio sources.
What headphones or earphones are recommended to fully exploit the SP3000M's potential?
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To get the most out of the SP3000M, opt for high-quality headphones or earphones with suitable impedance. For the unbalanced output (3.5 mm), models between 16 and 150 ohms work perfectly. For the balanced output (4.4 mm), which offers more power and better channel separation, headphones up to 300 ohms can be used. Brands like Focal, Sennheiser, Audeze, or Campfire Audio offer particularly suitable models. Ideally, choose headphones with a balanced connection to fully utilize the SP3000M’s dual independent circuit architecture.
User reviews
Gigi
Even though it arrived a little late, I received the item in question and it works perfectly, with very clear and powerful audio. Compared to the SE200, the display is a bit smaller, but the image quality is very clear. I inserted my previous 256G memory card and it was read instantly. I would like to replace it with a 1T memory card—would there be any issues, or would I need to reload all the music from scratch? With the previous device, when I did something similar, I ended up with less available space because the device still had the images of the tracks from the previous memory. A big thank you to the always helpful and knowledgeable staff, and especially to Quentin.
Comment from August 07, 2025 — Experience from July 26, 2025
Automatically translated — Show original (Italian)
Anche se con un po’ di ritardo, ho ricevuto l’oggetto in esame che funziona benissimo con un audio chiarissimo e potente
In confronto al SE200 il display è un po’ più piccolo però la qualità dell’immagine è molto chiara
Ho inserito la precedente memory card di 256G e la lettura è stata immediata
Vorrei sostituirla con una memoria di 1T, ci sarebbero problemi oppure dovrei caricare nuovamente tutta la musica, ripartendo da zero?
Con il device precedente con un ‘operazione simile mi trovai con un minore spazio disponibile in quanto nel device era rimasta l’immagine dei brani della memoria precedente
Un saluto per lo staff sempre disponibile e competente ed in particolare a quentin
Eco-contribution included in the sale price.
Manufacturer reference: AK-3PPF4390-CMBL01
GTIN / EAN: 8809954222504
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