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Radikal Technologies was formed in 1995 originally as a distribution company for "innovative studio equipment" in Germany, but subesequently releasing its own product line.
After making a line of software controllers, then the Spectralis and Accelerator synthesizers. Radikal Technologies have made the first step into the ever expanding eurorack format.
Here we see the RT451 a dual multi-mode filter with two CV inputs for frequency per filter and CV for Q.