KOMA Strom+ Module

Strom+ is a strong, reliable and safe 4HP power solution for your modular system. The Strom+ power module includes many safety mechanisms to prevent your modules from being damaged. These include most importantly short-circuit protection, overvoltage protection and a replaceable main input fuse. See the full list below.

Strom+ also offers a current sensing technology that indicates current consumption of your system. LEDs of each rail will turn orange then red, when current consumption reaches or crosses the maximum load of that rail.

Strom+ has extremely low ripple, even under full load. This means better sound and stability for your modules.

One module can power multiple skiffs via Strom Passive Module, a Strom Connector Cable, or a KOMA Strom Busboard.


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Technical Specifications

Inputs and Outputs

  • Output: 1.5A @ +12V | 1.5A @ +5V | 1.0 A @ -12V
  • Input: 15V, 4.6 A (center positive)

Safety Mechanisms

  • Replaceable input fuse. Protects the wall-plugged adapter. The KOMA Strom AC/DC adapter actually has its own protection mechanisms and will itself shutdown in most cases before the input fuse trips.
  • Input overvoltage. Strom+ works up to specification from 15V – 20V input and works out of specification up to 28V input.
  • Input reverse polarity protection
  • Output overvoltage protection
  • Output short-circuit protection
  • Output over current protection
  • Output undervoltage protection
  • All above output protections independent for each rail. If any rail fails, the whole module shuts down.

Connectors and Controls

  • Main DC-Input (15 VDC)
  • On/Off switch
  • Front panel connector to a passive Strom module
  • 2 standard Eurorack 16-pin connectors (for modules or a flying busboard)
  • Back panel Strom connector to solid busboards


  • 4HP
  • 48mm without Eurorack power connector connected (distribute power via Strom connector cable)
  • 52mm with Eurorack power cable connected

Read the Manual for the KOMA Elektronik STROM Power Solution.

See here the Koma Power Pinouts

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