Product Overview

The Neumann KK 131 nx is a high-precision pressure transducer that belongs to the KM A/D modular system. This capsule is specifically free-field equalized, meaning its sensitivity is tuned to be exceptionally flat for sound arriving directly from the front (up to 20 kHz). The "nx" suffix indicates the specialized Nextel Black finish—a matte, scratch-resistant coating that does not reflect light, making it the industry standard for television, film sets, and high-end stage productions.

Product Description

Modular Precision in a Discreet Package:

The KK 131 nx offers ultimate flexibility. As a passive capsule, it can be combined with either the KM A (analog) output stage for traditional P48 phantom power workflows or the KM D (digital) output stage for AES 42 systems. The modular concept allows the capsule to be detached and used up to 100 meters away from the output stage via specialized cables, enabling virtually invisible placement in complex setups.

True Near-Field Accuracy:

Unlike diffuse-field microphones that have a high-frequency boost to compensate for distance, the KK 131 nx is designed for accuracy at close range. It provides a natural, uncolored sound without any artificial "hype" in the treble. This makes it a reference-grade tool for capturing the authentic character of an instrument or voice as it sounds in the immediate vicinity.

Flawless Omnidirectional Characteristics:

Being a pressure transducer, the KK 131 nx possesses a true omnidirectional pattern that remains consistent even at high frequencies. It captures the surrounding acoustic environment with perfect phase coherence and exceptional low-frequency extension down to 20 Hz. Whether used for a solo performance or as part of an A-B stereo pair, it delivers a sense of "being there."

Built for High-Pressure Environments:

Despite its miniature profile, this capsule is remarkably rugged. It can handle enormous Sound Pressure Levels (SPL) of up to 150 dB (when used with the -10 dB pre-attenuation on the KM A output stage). This allows you to place the microphone extremely close to loud sources without risk of distortion or signal degradation.

Key Features

• Nextel Black (nx) Finish: Non-reflective, matte coating ideal for film, TV, and stage.

• Free-Field Equalized: Perfectly flat response for near-field and direct-sound miking.

• True Omnidirectional Pattern: Captures a natural, 360-degree sound field with no proximity effect.

• Modular Compatibility: Works seamlessly with KM A (Analog) and KM D (Digital) output stages.

• Ultra-Low Self-Noise: Advanced electronic design for pristine, high-resolution recordings.

• Extreme SPL Tolerance: Distortion-free performance up to 150 dB SPL.

   

   

Applications

• Classical & Orchestral Recording: Use for spot-miking soloists or as part of a main omni array.

• Television & Film: The non-glare finish is perfect for boom poles or "hidden" placement on set.

• Acoustic Instruments: Ideal for close-miking acoustic guitars, woodwinds, and percussion.

• Ambience & Room Miking: Captures a transparent and wide soundstage with accurate low-end.

   

   

Technical Specifications