Spitzenberger & Spies ist one of the worldwide leading manufacturers of analogue linear transistor amplifiers, AC/DC current and voltage power supplies for industrial measurement and testing systems.

Our services extend from single amplifiers for AC and DC mains simulation to complex, completely computer-controlled testing and measurement systems. Based on our 4-quadrant linear power amplifiers we are able to simulate all supply voltages from DC to several hundred kHz with power up to the megawatt range.

Our products are mainly used in development and test laboratories and quality assurance departments.