Sennheiser HD202 Closed Headphones
The Sennheiser HD202 closed, dynamic hi-fi stereo headphones feature good insulation against ambient noise and a deep bass response. This makes them the ideal companion for DJs - or anyone who likes to listen to modern, powerful music without disturbing others. The high-efficiency drivers deliver maximum performance. 1/8 inch connector with 1/4 inch adapter. Impedance: 32 ohms. Frequency range: 18Hz - 20kHz.
Sennheiser At A Glance
For 60 years, the name Sennheiser has been synonymous with top-quality products and tailor-made complete solutions for every aspect of the recording, transmission and reproduction of sound. In 1945, Dr. Fritz Sennheiser together with seven engineers and technicians set out on the venture to found a new company. The research and development specialists converted their university institute, which had been moved during the war to the small village of Wennebostel, into what became known as "Labor W", and it was there that they began to build measuring instruments. Less than a year later, microphones were added to their product range, and soon the resourceful team became extremely successful in numerous fields of audio technology.
Those were the humble beginnings of Sennheiser electronic, now a worldwide group of companies with more than 1,600 employees and one of the world's leading manufacturers of complete audio solutions. Still a family-owned company, Sennheiser has made a name for itself above all in the development and manufacture of high-quality microphones, wireless RF technology and headphones. Conference and information technology, infrared systems, products for the hearing impaired and aviation headsets round off the comprehensive product portfolio. The Sennheiser Group also includes the studio microphone specialist Georg Neumann GmbH, Berlin, K+H Vertriebs- und Entwicklungsgesellschaft (loudspeakers and studio monitors) and the Denmark-based joint venture Sennheiser Communications, which develops headsets for the PC, office and call center markets.
Sennheiser's main priority has always been research and development. The company's outstanding reputation throughout the world is the result of countless innovations, such as the invention of open-back headphones in the 1960s, infrared transmission technology in the 1970s, groundbreaking innovations in multi-channel wireless transmission in the 1980s, head-based surround sound systems in the 1990s and intelligent audio information systems in the new millennium. As the company's founder, Prof. Dr. Fritz Sennheiser, points out: "Ideas need space. So I was always a firm believer in giving our R&D staff all the freedom they need to develop their ideas." Today, a major research and development division in Germany and an R&D center in California ensure that the company maintains its technological lead. Numerous patents and awards, including two German Innovation Awards, a Scientific and Engineering Award, an Emmy and a Grammy, are evidence of the company's capacity for innovation.
Research & Development
Research and development are of eminent importance to Sennheiser and are an important investment in the future. The further development of technologies in acoustics and electronics leads to innovative products with which Sennheiser can expand its long-term position as a global player.
At Sennheiser, research and development provide room for the creativity and performance of its engineers. This investment pays off in the form of innovative and marketable products. The use of voice recognition technology, for example, is only possible when the acoustic components provide high quality. Sennheiser, as a producer of high-quality microphones and headphones, makes a decisive contribution in this area.
In wireless transmission technology, Sennheiser supports the trend toward digital technology. Currently, Sennheiser is working on transmission processes that make digital transmission possible for professional use as well as for consumer applications.
Miniaturization is a constant challenge for developers at Sennheiser. Products must provide more and more functions even as their dimensions become smaller and smaller. Micromechanical technologies permit new conceptual approaches for acoustic tasks, for instance specific attachment of hinges for microphone diaphragms. The ability of engineers in the area of research and development to turn good ideas into marketable products confirms again and again Sennheiser’s leading role as the driving force in the electro-acoustic industry.