MEETING THE HIGHEST DEMANDS: STUDIO MONITORS WITH TOTALLY AUTHENTIC SOUND

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MEETING THE HIGHEST DEMANDS: STUDIO MONITORS WITH TOTALLY AUTHENTIC SOUND
05 August 2007 - Bayer MaterialScience AG

The loudspeaker front of the O 300 near-field reference monitor from Klein+Hummel is manufactured using Baydur 60 polyurethane integral skin foam from Bayer MaterialScience. The high-frequency, mid-range and bass systems are integrated in the baffle, which is responsible for the outstanding sound quality produced by the loudspeaker.

Studio loudspeakers and near-field monitors are used in recording studios and radio and television broadcasting to evaluate the quality of music or voice recordings. It's no surprise that high demands are imposed on the sound quality of such professional systems. Among the most up-to-date and sophisticated products on the market are the O 110 and O 300 D near-field reference monitors and the large O 500 C main monitor designed by K+H (Klein+Hummel) Vertriebs- und Entwicklungsgesellschaft mbH in Wedemark, near Hanover, Germany, a member of the Sennheiser Group. The three devices are distinguished by a superior level of sound neutrality and impulse fidelity. Studio personnel and artists benefit from an exact stereo image, clear focus and depth, and precise bass reproduction, all of which are synonyms for very high fidelity.

The high-frequency, mid-range and bass systems are integrated in the baffle. Together with the loudspeakers, the baffle is responsible for the outstanding sound quality produced by the high-performance monitors. Rounded edges prevent any possible negative impact on sound by diffracting the sound waves. The front elements are manufactured by a Swiss-based company using the Baydur 60 polyurethane integral skin foam system from Bayer MaterialScience AG. Thanks to the good flow characteristics of the reaction mixture, the material offers virtually unlimited possibilities in terms of structural design. The material reproduces details with superior accuracy, a characteristic that helped engineers optimize the sound dispersion pattern and stay within the very narrow tolerances typical of such strict specifications. K+H finishes the high-quality plastic surface with an attractive coating that caters to the aesthetic standards of its customers.

The sandwich structure of the polyurethane system, comprising a solid top layer and a foam core, has a damping effect, so no unwanted resonance can spoil the acoustic experience. “Thanks to this polyurethane system, we have achieved total integration of all acoustically relevant mechanical elements in our loudspeaker,” says Frank Kirschner, head of sales at Klein+Hummel. “The material displays extraordinary design and acoustic properties. What's more, we benefit from its cost-efficient processing.”

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About: Bayer MaterialScience AG
Bayer Corporation, headquartered in Pittsburgh, is part of the worldwide Bayer Group, an international health care, nutrition and innovative materials group based in Leverkusen, Germany. Bayer employs 23,300 in North America with net North American sales of 8.8 billion euros in 2003. Bayer’s three operating business areas – HealthCare, CropScience and MaterialScience, improve people’s lives through a broad range of essential products that help diagnose and treat diseases, protect crops and advance automobile safety and durability.

Bayer MaterialScience AG is one of the world's largest producers of polymers and high-performance plastics. The main customers for Its innovative developments in coatings, adhesives, insulating materials and sealants, polycarbonates and polyurethanes are the automotive and construction industries, the electrical/electronics segment and manufacturers of sports and leisure goods, packaging, and medical devices.

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