Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Solidly constructed from black aluminium with a brushed silver aluminium front plate
- Versatile and reliable, delivering a high-quality experience with both high-resolution PCM and DSD files
- Offers a flexible range of streaming options
Product Considerations
- Initial set up may present a challenge for streaming newbies
- No wifi functionality
- The software running on the sMS-200 is less stable and far less advanced, and updates must be done serially
- The sMS-200 requires a USB conditioner, and the sound is a bit too bright/lean otherwise
Takeaway: The SOtM sMS-200 is a versatile and reliable streamer that offers a range of streaming options and delivers a high-quality audio experience. It is a great addition to any system for those looking for a flexible solution.
All
sMS-200
reviews
Manufacturer details
- OS: Linux
- Audio Support: PCM 32bit/768kHz max, DSDx512 max
- USB Ports: High-End audio grade USB port x 1,USB 2.0 port x 2
- USB Output Voltage: +5.0V(+0.5V, -0.25V)
- USB Over Current Protection: 0.8A at 20°C
- USB Recommended Output Current: 0.5A >
- Network: RJ45 Gigabit Ethernet
- Power Requirements: [object Object]
- Operating Environment: [object Object]
- Dimensions: 106×48×152(mm)
- Weight: 1.5kg
Not so with the sMS-200. SOtM developed this with audio sound performance at the forefront, getting rid of all unnecessary features and concentrating on a high quality sound tone for a reasonable price. The sMS-200 is carefully designed to provide the best sound quality based on our own unique technologies built up since the days of media players, and it is probably the only one capable of exceeding the current network players on the market in terms of functionality.
As to the player software, Roon Ready, MPD, DLNA, SqueezeLite and others are available as well as music files from an external USB storage device, network shared folders and streaming. And more functions can be easily added via software upgrade.
The sMS-200 is the one and only network player in this price range that delivers high fidelity together with impressive sound. It makes people freely imagine the real sce...
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- SOtM's products are known for their sleek, compact, and stylish aluminum enclosures, setting them apart from typical computer-like designs, and resembling attractive audio components.
- They use a Linux-based operating system (Vortexbox or Eunhasu OS) known for its audio playback capabilities, paired with well-established software like Logitech Media Server or Roon, offering a mature user experience.
Select products
sHP-100
- Positioning: A combined USB DAC and headphone amplifier designed for flexible connectivity in modest setups.
- Description: Offers diverse input options and quality digital-to-analog conversion with proven chips, ensuring clean sound in compact environments. Compared to the more specialized functions in the phono equalizer or flagship digital systems, it serves users needing versatile performance in smaller rooms on a moderate budget.
sPQ-100PS
- Positioning: A specialized phono equalizer aimed at optimizing analog vinyl playback.
- Description: Supports multiple EQ graphs and cartridge selections, allowing users to tailor its performance to different vinyl records with precise, natural tone reproduction. Compared to the digital processing in higher-end systems like the sMS-2000 or power amplification of the sPA-1000, it focuses on dedicated vinyl setups.
sPA-1000
- Positioning: A fully balanced Class D power amplifier suited for demanding audio systems.
- Description: Uses advanced power stabilization and balanced circuitry to achieve natural sound with precise control, delivering detailed performance in mid-to-large room environments. Compared to the compact functionality of the sHP-100 and the digital sophistication of the sMS-2000, it meets the needs of users looking for robust amplification with higher build quality.
sCLK-OCX10
- Positioning: A master clock generator developed for high-end digital audio systems.
- Description: Produces a pure 10MHz sine wave clock output with ultra-low phase noise and selectable impedance, thanks to its dedicated analog design refined over many years. Compared to devices focused on signal processing like the sMS-2000 or amplification like the sPA-1000, it serves audiophiles who need tight synchronization and precision.
sMS-2000
- Positioning: An integrated high-end digital audio system configured as the flagship for immersive musical experiences.
- Description: Brings together premium components including a dedicated USB host card, Ethernet interface, high-grade clock module, and custom power supply to deliver exceptional depth and clarity. Compared to the focused roles of the sPA-1000 and sCLK-OCX10, it offers comprehensive functionality and superior performance suitable for large, sophisticated systems.
Our take on the brand
Look inside the brand
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
First, we don’t just use advanced technologies like ultra-high-speed digital hardware, precision audio clocking, or noise filtering—we develop them ourselves with a deep understanding of how each element affects sound quality. For example, our proprietary power electronics for audio circuits and custom-designed oscillators play a critical role in delivering our distinctive sound.
Second, while many brands prioritize marketing, we invest heavily in R&D. This means our products may not always be the most widely advertised, but they are built on a solid foundation of innovation and long-term vision. Rather than making minor upgrades, we aim to create fundamentally better products with each release. That’s a philosophy that consistently earns us loyal users around the world.
What's your approach to customer support?
At SOtM, we take customer support seriously. Customers are encouraged to first contact their local dealer or distributor, as they are trained to handle most issues and can provide service in the customer’s native language. However, if further assistance is needed, customers are always welcome to reach out to us directly. When a customer experiences an issue, we aim to respond quickly, diagnose the problem accurately, and offer a solution that minimizes any disruption. We go above and beyond by offering firmware updates, personalized setup help, and sometimes even remote access support to ensure the best possible experience.
What are your favorite tracks for showcasing the strength of your products?
Some of our go-to pieces include:
- Stravinsky – The Firebird Suite (Finale): Great for dynamics and layering.
- Copland – Fanfare for the Common Man: Perfect for testing impact, timing, and space.
- Mahler – Symphony No. 2 "Resurrection": A true challenge for any system, with massive scale and emotional intensity.
We also enjoy film scores for their emotional engagement and wide frequency content. Ultimately, we choose tracks that are musically moving and technically revealing—regardless of genre.
What other products pair best with yours?
Since we produce everything from digital sources to amplifiers and cables—essentially all components except speakers—we typically use speakers from brands like Focal and Magico in our reference systems. All other components in the system are SOtM products, allowing us to demonstrate the full potential of our technology in a fully optimized environment.
Used
SOtM
What if you spend more?
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Product Strengths
- Open and transparent sound with precise placement and detail without being tiring
- Versatile streaming options through Chromecast, AirPlay 2, Spotify Connect, Tidal, Qobuz, DLNA/UPnP, and Roon Ready
- Good sound quality that enhances the listening experience compared to cheaper network players
- The Prisma platform receives long-term support with updates
- Compact size allows it to fit pretty much anywhere
Product Considerations
- Requires a separate DAC or an amplifier with a built-in DAC
- Basic control is limited to app use
- The included power supply is a cost-effective option that can be upgraded for improved performance
- Internet radio stream selection could be better
Comparisons (according to reviewers)
- Vs Cambridge Audio MX-N10—the NP5 has more mature, defined, transparent, and natural sounds, while the MX-N10 delivers more punch to the sound
- Vs Bluesound Node—the NP5 offers better levels of clarity, soundstage, and definition, but the Bluesound Node is more feature-rich
- Vs WiiM Pro—the NP5 has a bigger, more open, and more dynamic soundstage
- Vs Naim ND5XS—the NP5 is more detailed, tighter defined, and more precise in terms of placement in the stereo image
- Vs Argon Audio Solo—the NP5 has more resolution and separation, and it projects vocals and soundstage a little bit more viscerally
Takeaway: The NP5 Prisma MKII is a versatile streamer that offers great sound for the price. It is a good choice for anyone wanting to add streaming to their existing setup and is worthwhile if seeking an upgrade in sound quality from basic streamers.
Video review
Our take on the brand
Product Strengths
- High-quality build, feels substantial and well-made due to the aluminum casing and hefty weight
- Offers versatility by functioning as both a streamer and a DDC (digital-to-digital converter)
- Delivers very low jitter and noise
- Improves the sound quality, details, and soundstage compared to using a computer directly as a source
- Provides various connectivity options, including I2S, AES, SPDIF (BNC, Coax, Optical), and USB
Product Considerations
- Switching between DDC and streamer modes requires physically disconnecting the USB-B cable and power cycling the device, which is not ideal
- Initial setup and software flashing might be necessary for some users to ensure optimal performance
- Only connects via Ethernet, as it does not have Wi-Fi
- Some users have found that a power conditioner is necessary to get the best sound
Comparisons (according to reviewers)
- The Red provides a wider and deeper soundstage, as well as a lower noise floor, compared to the Raspberry Pi
- Favored for its performance as a DDC and streamer combo, as well as for build quality, the Red is better than the iFi Zen Stream and iFi Neo Stream, the latter of which is considered a good all-in-one solution with a built-in DAC
- Sounds night and day better, the Metrum Amber sounds more distant, fuzzy, and not as crisp
Takeaway: The Hello Audio Red is a versatile device that can function as a streamer and DDC. It offers a clean and detailed sound, making it a worthwhile addition to a high-quality audio setup.
Video review
Our take on the brand
This ability to make music more alive, less aggressive and really "warmer". We sought to obtain this sound from current dematerialized sources. After various prototypes, it turned out that using 5703 subminiature tubes was the ideal solution, so we designed a class A tube output stage that brought the "magic" of vinyl.
Achieving this result seemed possible to us by combining several technologies and design. That's what we did! The WTX-StreamTubes is a WiFi or Ethernet network player, it integrates many streaming services like Spotify, Qobuz, Tidal, Deezer, Amazon Music, etc., several thousand local, national and global radio stations via TuneIn or vTuner, playback of your music library stored locally on your computer, smartphones, tablets or network drive (NAS).
The WTX-StreamTubes has a complete connectivity. You can connect our Bluetooth Direct Digital X-FTB01 or X-FTB02 HD dongle to it via its proprietary port.
The Advance PlayStream application for controlling the WTX-StreamTubes is available for free download on the AppStore (iOS) and GooglePlay store (Android). DLNA compatible. With this application, you can control multiple Advance Paris products that have network functionality. You can play the same music in all rooms or different music in each room.
Our summary
Product Strengths
- Unique tube-based output stage using 5703 subminiature tubes delivers analogue warmth
- Comprehensive streaming service support includes Spotify, Qobuz, Tidal, Deezer, Amazon Music, TuneIn, and vTuner radio services
- Robust multiroom capabilities allow streaming different audio sources to multiple rooms simultaneously
- The app is responsive, controls well, and connects directly with Spotify output
- Sound staging seems to open up a little more—expansive sound staging width, which is very common of tube stage preamps or amplifiers
- Bluetooth connectivity requires optional dongles
Product Considerations
- The app structure is the same for the WiiM streamer app, suggesting shared software programming
Comparisons (according to reviewers)
- Compared to the Topping DAC, the WTX-StreamTubes has a higher voltage output
Takeaway: The WTX-StreamTubes offers a unique way to experience digital music with the warmth of tubes and is easy to use with its responsive app and comprehensive streaming support. Its multiroom capabilities and tube sound make it a good option for those wanting to upgrade their streaming setup
Video review
Our take on the brand
Product Strengths
- Designed with a focus on playback quality, using a custom computer platform instead of existing solutions
- Has a rich selection of digital outputs, including S/PDIF, AES/EBU, and I²S, and offers clock sync with Denafrips DACs
- Features a powerful quad-core ARM Cortex processor for fast music streaming
Product Considerations
- DLNA streaming is limited to a resolution of 16-bit/44kHz
- The interface and initial installation can be confusing without instructions
- Roon certification is ongoing and not yet completed
Comparisons (according to reviewers)
- Compared to the Eversolo A6 Master Edition, the Arce offers a more analog sound with richer bass, while the Eversolo is more punchy, dynamic, and in-your-face
- Arce seemed equally musical and detailed as the Metrum Ambre, with a high dose of transparency
- Compared to the Meitner MA3 DAC (internal streamer), Arce sounded similar, losing only a little transparency and space after extremely careful listening
- Arce is slightly faster, more open, more detailed, and has a nicer exterior design than the AlloUSBridge
Takeaway: The Arce streamer is an excellent choice if one wants great sound, a nice look, and useful features, especially if Roon is already being used and there is a good DAC with I²S or AES/EBU. It does a great job streaming music and lets one enjoy the sounds hidden in the digital files.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- The iFi ZEN Stream offers a 'tremendously flexible specification' for a network streaming transport, supporting various streaming methods including UPnP, Tidal Connect, Spotify Connect, Roon Endpoint, NAA, and AirPlay
- Offers great functionality and fine sound in a small package at a low price, offering an excellent price-to-performance ratio, making it accessible for a wider audience
- Designed to work with any DAC with a USB or S/PDIF connection, expanding its compatibility and usefulness
- Setup is generally considered easy, particularly for Roon users, making it user-friendly
- Solid build quality with metal construction indicates durability
Product Considerations
- The software experience might have 'minor stability and set up niggles,' sometimes requiring restarts or exhibiting finicky behavior
- The front panel design, particularly the large 'STREAM' logo and LED indicators, may not appeal to all users
- The included owner's manual may be inadequate for those who may want to access specific features of the device
- Some user's found Airplay implementation issues
Comparisons (according to reviewers)
- vs AURALiC Altair G2: The AURALiC sounded more subtly delineated, but the improvement in no way reflected the price difference, showing what fine value the iFi is
- vs Raspberry Pi: Far easier to set up, more user-friendly, and sonically indistinguishable
- vs SOtM SMS200 Neo: The Stream makes the SOtM look decidedly limited in terms of functionality
- vs Bluesound Node: The Bluesound Node offers the addition of a solidly designed and road-tested, closed operating system, analog outputs, and Bluetooth inputs
- vs Pi2Design Pi2AES: A slight advantage to the Zen Stream
Takeaway: The iFi ZEN Stream is a versatile and affordable device for streaming music from various sources to a DAC. It is easy to set up and offers great sound quality, making it a worthwhile addition to any hifi system.
Video review
Our take on the brand
Our Summary
Product Strengths
- Versatile connectivity—offering a wide array of input and output options, including USB, optical, coaxial, AES/EBU, I2S (via HDMI), Bluetooth, Ethernet, and Wi-Fi, providing flexibility in connecting to various devices and sources
- Good sound quality—described as balanced, detailed, neutral, resolving, and clean
- Local file playback—can play music from local sources like microSD cards, USB drives, and NAS setups, making it a standalone source device
- EQ and MSEB features—includes an equalizer and MSEB (Magic Sound 8 Ball) for sound customization, offering a way to tweak the sound without full EQ curves
Product Considerations
- Software is described as unpolished, buggy, glitchy, laggy, and finicky
- Streaming via DLNA/UPnP can be unreliable, with dropouts, freezes, and connection losses reported
- Some reviewers experienced issues with AirPlay connectivity
- Menu navigation is considered clunky, with key functions buried deep and requiring multiple clicks to access
- The display is small, making it difficult to read from a distance
Comparisons (according to reviewers)
- Compared to the Cambridge Audio A51n—the SD-9 connected via I2S offers improved sound quality compared to A51n's digital stream via optical
- Compared to the Allo DigiOne—the SD-9 provides a firmer bass and more energy and excitement, the DigiOne is smoother but rolled off on the high frequencies
Takeaway: The SMSL SD-9 is a versatile device with good sound quality and many features. It is a good option if one wants a single device that can play music from many sources, especially local files.
Video review
Our take on the brand
Our Summary
Product Strengths
- Excellent build quality
- Simple setup
- Supports AirPlay 2, Chromecast, Bluetooth, Spotify Connect, Tidal Connect, DLNA, and Roon
- Delivers outstanding audio performance with support for up to 24-bit/192kHz resolution
- Offers both digital and analog outputs
Product Considerations
- No dedicated app or physical remote control, relying on third-party apps for control
- Uneven streaming service support
- No hi-res Bluetooth codecs
- Single RCA analog output
- Limited USB input is used only for power
Comparisons (according to reviewers)
- Vs Sonos Port: CS1 has an edge with an optical output, which the Port lacks
- Vs WiiM Pro: CS1 lacks the ability to pipe an external source into the system, something the WiiM Pro can do
- Vs Bluesound Node: Unlike the Bluesound Node, the CS1 does not allow users to upload their own music files
- Vs Bluesound Node: NAD CS-1 is a full endpoint when the Bluesound Node isn't—thus it works better with Roon
Takeaway: The NAD CS1 is a well-built, compact, and simple way to add streaming to a sound system that might be lacking it. It's a great option for those wanting to explore streaming without a big investment.
Video review
Our take on the brand
Our Summary
Product Strengths
- Delivers superb sound quality, enhancing dynamics and musicality
- Isolates the user from noise, preventing the introduction of noise from connected devices
- Offers excellent build quality with a sturdy chassis
- Integrates flawlessly with Tidal Connect and Spotify Connect
- Provides a cleaner signal with more richness in the bass and a more brilliant treble compared to a computer source
Product Considerations
- The default power supply has a short wire
- Input switching is done via buttons
- An additional DAC is required to function, adding to the overall cost if the user doesn't already have one
- The included 4Stream smartphone app has received mixed reviews from users
- Does not have USB output
Comparisons (according to reviewers)
- Ebravo has easier streaming service integration for Tidal and Spotify, and improves sound drastically with a wider soundstage, compared to Matrix Audio Mini-i Pro 4
- Ebravo sounds more musical, detailed, and has better resolution with a cleaner signal, compared to Soundaware A1x PRO
Takeaway: The Keces Audio Ebravo is a great digital transport that enhances the sonic qualities of music, making it more engaging and dynamic, and it's easy to use with popular streaming services. It may be a worthwhile consideration for a sonically improved listening experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Supports many file formats and can decode PCM up to 24bit-768kHz and DSD up to DSD256 natively
- Offers a wide range of I/O options and wireless capability, including Bluetooth and WiFi
- The device is tiny, measuring 11.9 x 3.8 x 11.1 centimeters, which saves desk space
- The chassis is CNC precision milled with an anodized black finish and an all-aluminum cubic chassis
- Has LDAC / AAC / SBC / APTX Codec Support and USB OTG & Micro SD Support
Product Considerations
- Some buttons on the front side are slightly wobbly
- The screen could be bigger for more comfortable reading
- The M50 comes with old packaging that Topping was using for more than 2 years
- It was hard to see what was selected on the EQ settings screen due to dark blue on black color scheme
- The user interface isn't as smooth when browsing music directly on the device, recommending the Hibby Link app instead
Takeaway: The Topping M50 is a feature-rich digital music player offering versatile connectivity and high-resolution audio playback in a compact size. It is a good option for audiophiles seeking a convenient and capable digital source for their audio systems.
Video review
Our take on the brand
Questions? Ask the brand's dealers.
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