3U Synthesizer Modules

This section contains 3U format power supplies, power distribution boards, power cables and accessories related to processing, regulating and distributing power to modules in the synthesizer. These products use 16 pin 2 row retangular power connectors that carry + and - 12 Volts and +5 Volts. The connector used for the power supply and module ends is a male header with two rows of 8 pins each. The pins are surrounded by a plastic shroud that has a keyway that prevents improper insertion.  The mating female connector used on power cables made of 16 conductor ribbon cable also have a mating keyway.

GMS-945EU 45 Watt Power Supply

The GMS-945EU 45 Watt power supply, housed in a 1.2 inch (6 HP) wide Eurorack module converts a 12 Volt DC input into standard bus power outputs for Eurorack modules.


We produce electronic synthesizer modules in the two most popular formats, MU (Moog compatible 5U) and EU (Eurorack compatible 3U). A wide range of voltage controlled modules including oscillators, amplifiers, mixers, envelope generators, special effects units, wave generators, filters, power systems and cases allow users complete freedom to configure any desired electronic music instrument.


Grove Audio builds microphones, preamplifiers, equalizers, compressors and other professional audio equipment for performance and studio use. We build units in popular formats such as 19 inch rack mount and 500 series 3U modules. We can also produce custom designs on request. Contact us for a consultation.


You can explore all of our products, download spec sheets, and purchase our products in the Grove Audio Synth Store. You can also learn about our periodic specials and new product introductions. Click the button below to go directly to the store.

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  • Email: sales@groveaudio.com
  • Phone: 608 886-6503


Grove Audio has been manufacturing professional recording and modularized electronics for musicians and performers since 1995.