sMS-200ultra Neo + Ethernet switch mod
sMS-200ultra Neo + Ethernet switch mod
sMS-200ultra Neo + Ethernet switch mod
sMS-200ultra Neo + Ethernet switch mod
sMS-200ultra Neo + Ethernet switch mod

sMS-200ultra Neo + Ethernet switch mod

Regular price $1,500.00

This price includes:

  • the sMS-200ultra with a switch modification unit
  • NETGEAR GS105NA 5-Port Gigabit Ethernet switch (5, 7, or 12V)
  • cost of shipping the switch back and forth to SOtM
  • labor to enabling the sCLK-EX 1 clock point, and
  • SMB connector installation and cables
Please allow additional time for the mod.

Why should you modify?

  • The sMS-200ultra has the sCLK-EX clock with 4 points. The sCLK-EX can be used for all digital devices that require clock signals such as DAC, USB host card, CD player, PC main board and LAN controller.
  • Two points are used by the system internally (sCLK-EX2425) and two points left free to clock other digital devices (eg Ethernet switch).

What is the modification?

  • Enable one point (clock)
  • Replacing 2 x regulators in the Ethernet switch
  • Replacing the capacitors in the Ethernet switch
  • Add SMB connection (coaxial RF connectors)

This modification works to eliminate noise coming from the Ethernet connection and improves/cleans the sound as a result.


sMS-200ultra is the newest generation of audio network player with a built-in ‘Media Player Board’ developed by SOtM.

 The sMS-200ultra is similar to the sMS-200, and boasts a dedicated ARM processor board, purpose-built to support only audio. The difference lies in the addition of the upgraded sCLK-EX clock board – in a compact and specially-designed case. The clock is one of the most important factors that determines the sound quality your digital devices, and the inclusion of the clock in this unit will improve your entire system – giving an overall solid performance to your listening experience. This means that you get a custom-built product focused on creating the perfect audio sound performance with strong functionality, with none of the performance problems and deterioration of sound that can occur with ready-made processor boards from other manufacturers.

Player software:  ROON, MPD, DLNA, SqueezeLite and others are available.  You can use your music files from an external USB storage device, network shared folders or streaming services – or easily add even more functions via a software upgrade. Simple and nice looking Web GUI allows users to choose the desired audio function, setup and control playing music file through Apps on users’ smart devices.
sMS-200ultra is the only network player of its kind – delivering high fidelity together with impressive sound at a great price. Immerse yourself in the difference with the sMS-200ultra.


OS - Linux

Audio player
 Roon Ready
 DLNA renderer
 Music Player Daemon(MPD)
 Logitech Media Server(LMS)
Audio feature
 PCM 32bit/768KHz max, DSDx512 max
 Ultra Low Noise Regulator
 Active Noise canceller
USB port
 High-End audio grade USB port x 1
 USB 2.0 port x 2
 Output voltage : +5.0V(+0.5V, -0.25V)
 Over current protection : 0.8A at 20°C
 Recommend output current : 0.5A >
Ethernet port
 RJ45 Gigabit Ethernet
External power input
 Input voltage : +6.5V ~ +9Vdc(Optional 12.0Vdc)
 Input current : 2A max
 5.5mm OD, 2.1mm ID adaptor jack
Internal reference clock
 sCLK-EX2425 board
External master clock input : Optional
 Input frequency : 10MHz
 Isolated clock input
 50Ω BNC connector x 1
Operating environment
 Operating temperature range: +10 ~ +30℃
 Storage temperature : 0 ~ +40℃
 Operating & storage humidity : 10% ~ 90%
 106 x 48 x 227(mm)
 1.5Kg >