Founded in 1965 in Cologne, Germany by Rudolf Twelker, RTW has been contributing to technological progress in the professional audio industry by delivering high-quality audio monitoring solutions for broadcasting, production, post-production, and quality control. With its innovative devices and technologies, RTW has played a key role in shaping the industry.
Originally established as a service provider for audio equipment, the company gradually evolved into a technology-focused organization and became a major player in professional broadcasting and audio measurement technologies, with a strong emphasis on the development of advanced monitoring systems.
RTW’s contributions to the development of international loudness measurement standards through the European Broadcasting Union’s (EBU) P/Loud working group have been instrumental in establishing standardized practices for audio quality control on a global scale.
