SBK 130 A

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The Neumann SBK 130 A is a precision sound diffraction sphere designed to alter the directional characteristics of Neumann pressure microphones, including the KM 130, KM 131 (A/D), and KM 183 (A/D). By simply slipping it onto the microphone capsule, this accessory subtly modifies the microphone's frequency response and polar pattern to achieve a more natural and spatially accurate sound image. The SBK 130 A enhances sounds arriving from the front half-space, providing up to a 2.5 dB boost between 2 kHz and 10 kHz, which improves presence and clarity. At the same time, sounds coming from the rear half-space are gently attenuated by up to 2.5 dB above 5 kHz, helping reduce unwanted ambient pickup and emphasizing the main source. With an inner diameter of 22 mm, the SBK 130 A fits securely while maintaining the microphone's acoustic integrity. It is particularly useful for applications such as orchestral recording, stereo techniques, and immersive sound capture, where precise tonal balance and spatial accuracy are essential. Show more