Neumann KM 183 mt Stereo Set Omnidirectional Small-Diaphragm Condenser Microphones – Matte Black

Neumann KM 183 mt Stereo Set Omnidirectional Small-Diaphragm Condenser Microphones

The Neumann KM 183 mt Stereo Set is a matched pair of professional small-diaphragm condenser microphones from the renowned Neumann Series 180. Finished in a discreet matte black coating, each KM 183 features a frequency-independent omnidirectional polar pattern, delivering exceptionally transparent sound reproduction, extremely low self-noise, and outstanding off-axis consistency. Designed for demanding studio, broadcast, classical music, and location recording applications, the stereo set provides accurate stereo imaging and natural ambience capture for professional recording engineers.

Unlike the modular KM A and KM D microphone systems, the Series 180 features a fixed-capsule design that combines legendary Neumann sound quality with a compact, reliable, and cost-effective construction. The matched microphones ensure consistent frequency response and sensitivity, making them ideal for stereo recording techniques where tonal accuracy and phase coherence are essential.

Natural Omnidirectional Sound Capture

The KM 183 employs a pressure transducer capsule with a frequency-independent omnidirectional polar pattern. Its diffuse-field equalized design provides an exceptionally natural and transparent sound with virtually no off-axis coloration. The unlimited low-frequency response captures the full depth of acoustic instruments, orchestras, choirs, and room ambience, while a gentle high-frequency boost enhances clarity during close microphone placement.

Matched Stereo Performance

This stereo set includes two factory-matched KM 183 mt microphones, making it an excellent choice for professional stereo recording techniques such as spaced pair (A/B), Decca Tree, surround arrays, and ambient recording. The consistent performance of both microphones delivers stable stereo imaging, accurate localization, and faithful reproduction of acoustic spaces.

Transformerless Electronics

Each KM 183 mt incorporates Neumann's transformerless output circuitry for exceptional transient response, wide dynamic range, low distortion, and reliable operation. The microphones can handle sound pressure levels up to 140 dB while maintaining an extremely low self-noise of only 13 dB-A, making them suitable for everything from delicate classical performances to high-level percussion and drum recordings.

Key Features

• Matched stereo pair of professional small-diaphragm condenser microphones.
• Frequency-independent omnidirectional polar pattern.
• Pressure transducer with unlimited bass response.
• Diffuse-field equalized for natural sound reproduction.
• Transformerless output circuitry.
• Very low self-noise of 13 dB-A.
• Maximum SPL of 140 dB.
• Excellent off-axis response for accurate stereo imaging.
• Compact matte black finish for discreet placement.
• Ideal for professional stereo, surround, broadcast, and studio recording.

Ideal Applications

• Classical music recording
• Orchestral recording
• Choir recording
• Concert hall ambience
• Stereo A/B recording
• Surround microphone arrays
• Acoustic instruments
• Piano recording
• Broadcast production
• Film and location recording

Technical Specifications (Each Microphone)

• Microphone Type: Small-diaphragm condenser microphone
• Series: Neumann Series 180
• Polar Pattern: Omnidirectional
• Acoustical Operating Principle: Pressure transducer
• Frequency Response: 20 Hz – 20 kHz
• Sensitivity: 12 mV/Pa ±1 dB
• Equivalent Noise Level (A-weighted): 13 dB-A
• Signal-to-Noise Ratio (A-weighted): 81 dB
• Maximum SPL: 140 dB
• Rated Impedance: 50 Ω
• Rated Load Impedance: 1 kΩ
• Power Requirement: 48 V Phantom Power (P48)
• Current Consumption: 3.2 mA
• Output Connector: 3-pin XLR
• Dimensions: 22 mm diameter × 107 mm length
• Weight: Approximately 80 g each
• Finish: Matte Black (mt)
• Manufacturer Part Number: 008521

Package Contents

• 2 × Neumann KM 183 mt Small-Diaphragm Condenser Microphones
• 2 × Neumann WNS 100 Windscreens
• 2 × Neumann SG 21 bk Stand Mount Swivels

Why Choose the Neumann KM 183 mt Stereo Set?

The Neumann KM 183 mt Stereo Set delivers the accuracy, consistency, and transparency required for professional stereo recording. Its matched omnidirectional microphones provide exceptional spatial realism, natural ambience, and precise stereo imaging, making the set an outstanding choice for orchestral recording, acoustic instruments, immersive audio production, broadcast, and studio applications. Combining Neumann's renowned engineering with compact construction and transformerless electronics, the KM 183 mt Stereo Set remains a benchmark solution for professional stereo microphone recording.