SOtM
Amplifiers
DACs
Digital Sources
Power Conditioners
Best Known For
Digital Sources
/
Used Products
2
 Available
Average Price
$1,001-$2,500
Brand Popularity
323
 of 900+
Products Listed
11
Review Count
20
Founding Year
2008
Headquarters
South Korea
SOtM
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What's unique about the brand

SOtM is a hifi brand that develops its own ARM processor boards specifically for audio, avoiding the sound quality issues common in ready-made processors used by other manufacturers. Their products, including the sMS-200 network player and sPQ-100 phono preamp, stand out for their ultra-low noise technology and rare impedance-matching features, while maintaining a focused approach by eliminating unnecessary features.

What reviewers are saying

We read all the reviews. Here's what reviewers feel most strongly about:

  • 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.

Our favorite reviewer quotes:

  • "The SOtM sMS-200ultra is leagues better (especially with regards to timbre/tone) than the original sMS-200 and has a richly nuanced and natural sound that is addictively melodic. Its effortless layering of the soundstage and honest presentation of artistic intent makes it something very special indeed." (https://audiobacon.net/2017/11/18/sotm-sms-200ultra-network-audio-player-sps-500-power-supply-review)
  • "With the sMS-200, I experienced familiar tracks in a whole new light and I don't believe I've heard the recordings sound this natural, with so much composure, while still maintaining a musicality and impact that aligns with artistic intent. It is truly a remarkable achievement." (https://audiobacon.net/2017/03/23/sotm-sms-200-mbps-d2s-review)
  • "The first notes exploded out of the sMS-1000SQ with real impact, almost startling me. Leading-edge transients were extremely well defined but not exaggerated; they still sounded like the plucked strings of a guitar, and the overall tone of Liebert's instrument was a very realistic blend of string vibration and body resonance." (https://www.soundstagehifi.com/index.php/equipment-reviews/924-sotm-sms-1000sq-music-server-and-sps-1000-power-supply)
  • "The SOtM sPQ-100 reproduces the subtle nuances, from the flickering of strings to the rapid crescendos, with unexpected clarity and speed. With the sPQ-100, I never felt musical subtleties being lost, and the SOtM phono stage made "Rashomon" a captivating journey through the intricacies of this masterful composition." (https://www.monoandstereo.com/sotm-spq-100-review)
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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.

From Julian's interview with
May Park
.

Lineup comparison

We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.

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.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer

Used

SOtM

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What other products pair best with yours?

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What other products pair best with yours?

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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

Industry leading intuitive touch panel interface and 4K video support, which allows you consume content in a new and immersive way without sacrificing audio quality.

What's your approach to customer support?

We have a dedicated service and tech support team. Our sales reps are also trained on supporting the line.

We always encourage the dealer to be involved in the support process since many of the issues can be resolved at the dealer level. Having the dealer involved also provides an opportunity for them to learn how to resolve more common issues. We are also happy and available to assist end users who reach out to us directly.

The best course of action is to reach out to your dealer and alert them of an issue. If your dealer is unable to resolve the issue, they can reach out to their rep or our support team for assistance. If they do not have a dealer, our support team is available via email at [email protected]

Monday through Friday from 9am to 5pm CST.

Our goal is to respond to support issues within 1 business day. If a product is deemed to be defective within the first 30 days of receiving the unit, we will usually offer to replace it.

What are your favorite tracks for showcasing the strength of your products?

  • Led Zeppelin-Black Dog Live - New York 1973 -4K (Youtube)
  • (Sittin' On) The Dock of the Bay feat. Jack Johnson | Otis Redding 50th Anniversary (Youtube)
  • Forever - Mildlife

What other products pair best with yours?

McIntosh, Luxman, Pass Labs 

Website author headshot
Julian Shapiro
ExtremeHiFi
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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

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What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Digital Sources
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Average Price
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Used Products
7
 Available
Brand Popularity
295
 of 900+
Headquarters
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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page