TRANSfourMER

quad transformer-isolated output module

Are you looking for a module to connect your Eurorack system to external devices? Then TRANSfourMER is exactly what you need! It’s a four-channel output module that perfectly prepares your modular signals for professional processing in the studio or live. Discover what makes TRANSfourMER so special and how you can use it in your Eurorack system.

What is TRANSfourMER?

We developed TRANSfourMER specifically for the needs of Eurorack users. It features four channels, each equipped with an unbalanced input and a balanced output. This allows you to easily connect your modular signals to any external studio equipment, audio interfaces, or PA systems without worrying about levels or gain staging.

What are the advantages of TRANSfourMER?

TRANSfourMER offers numerous advantages that will raise your Eurorack sound quality to a new level:

  • Balancing: TRANSfourMER ensures the balancing of your audio signals, which is essential for professional signal transmission. This makes them resistant to external interference.
  • Galvanic Isolation: TRANSfourMER provides galvanic isolation of your modular system from the rest of your studio or live equipment. This protects you from annoying hum caused by ground loops.
  • Splitter Function: TRANSfourMER allows for paired routing of the channels. You can use them independently or as a dual splitter. For example, you can send your audio signals simultaneously to your audio interface and your monitoring system without needing additional cables or devices. Thanks to plug detection, this function is always available when you need it.
  • Simplicity: TRANSfourMER is a module that makes your life easier. It has no complicated settings or controls and performs its job without hassle. You don’t need to worry about level indicators or gain staging; instead, you can fully focus on the creative processes.

TRANSfourMER is an extremely useful tool for your Eurorack modular system. It provides you with optimal preparation of your modular signals for professional processing in the studio or live.

Audio Features 
Frequency Range<20 Hz … >20 kHz (-1dB)
Max. Input Level+30 dBu (±12 volts)
Input Impedance10 kΩ
Max. Output Level+12,8 dBu (±3,4 volts)
Output Impedance<100 Ω
Signal-To-Noise Ratio103 dB
THD+Noise (50 Hz … 20 kHz)<0,06%
Maximum Power Consumption 
+12 V20 mA
–12 V20 mA
+5 Vn/a
Dimensions and Weight 
Width/Height12 HP/3 U
Depth43 mm
Weight270 g