Neumann SBK130A

The Neumann SBK 130 A is a specialized diffraction sphere adapter designed for select Neumann omnidirectional microphones, including the KM 130, KM 131 (D), and KM 183 (D). By modifying the microphone's acoustic response, it enhances front-facing sound pickup and improves directional discrimination at higher frequencies, making it ideal for orchestral, ambient, and classical recording applications. Finished in matte black, the SBK 130 A provides a simple yet effective way to optimize microphone performance in demanding recording environments.

The Neumann SBK 130 A is a precision-engineered diffraction sphere adapter developed to extend the versatility and acoustic performance of compatible Neumann omnidirectional microphones. Designed for use with the KM 130, KM 131 (D), and KM 183 (D) microphones, the adapter alters the microphone's high-frequency response to improve directional sensitivity and spatial imaging.

The diffraction sphere works by modifying the way sound waves interact with the microphone capsule. Sound arriving from the front is acoustically enhanced by approximately 2.5 dB across the 2 kHz to 10 kHz range, improving clarity, presence, and definition. At the same time, sound arriving from the rear is attenuated by approximately 2.5 dB above 5 kHz, helping to improve front-to-back discrimination and spatial accuracy.

This acoustic enhancement is particularly valuable in classical music recording, orchestral capture, ambient recording, stereo arrays, and other critical applications where precise imaging and natural sound reproduction are essential. The SBK 130 A allows engineers to achieve greater focus and detail while preserving the renowned transparency and accuracy of Neumann microphones.

Manufactured to Neumann's exacting standards, the adapter features a robust matte black finish and an internal diameter of 22 mm for secure attachment to compatible microphones. Its compact, lightweight design allows easy installation without significantly affecting microphone handling or positioning.

Key Features

• Professional diffraction sphere adapter
• Designed for compatible Neumann omnidirectional microphones
• Enhances front-facing sound by approximately 2.5 dB
• Improves directional discrimination at higher frequencies
• Increases presence and clarity from the front sound field
• Reduces rear sound pickup above 5 kHz
• Ideal for orchestral, classical, ambient, and stereo recording
• Maintains natural microphone transparency and accuracy
• Easy installation and secure fit
• Durable matte black finish