Neumann KMR 81 i

Neumann KMR 81 i is a high-directivity shotgun microphone designed for film dialogue, broadcast, and ENG applications, delivering clear and focused sound even when placed at a distance from the source. With its 90° acceptance angle and minimal off-axis coloration, the KMR 81 i captures consistent tone even as actors move, making it ideal for professional location and studio use.

Combining a pressure-gradient condenser capsule with a medium-length interference tube, the KMR 81 i achieves precise directionality and exceptional rejection of unwanted background noise. Unlike many other shotgun microphones, its lobe-shaped pickup pattern is frequency-independent, ensuring that off-axis sound remains natural without tonal distortion. This design makes it easier to align or adjust in postproduction without affecting the overall sonic integrity.

The microphone features a switchable low-cut filter (200 Hz) to counteract proximity effect and a –10 dB pad to prevent overload when recording louder sources. With very low self-noise (12 dB-A), high sensitivity (18 mV/Pa), and the ability to handle SPLs up to 138 dB, the KMR 81 i is an ideal choice for demanding environments. Its linear frequency response up to 2 kHz and smooth treble lift deliver a natural, detailed sound that blends seamlessly in film and broadcast mixes.

Lightweight at only 145 g and 213 mm long, the KMR 81 i provides a balanced feel for handheld, boom, or mounted operation. Its robust build, low power consumption, and resistance to wind and handling noise make it a reliable tool for on-location recording and critical sound capture in film production, orchestral setups, or dialogue work.

KEY FEATURES

• Medium-length shotgun microphone with 90° pickup angle
• Natural, uncolored off-axis sound
• High directivity and excellent rejection of unwanted noise
• Switchable 200 Hz low-cut and –10 dB pad
• Handles up to 138 dB SPL
• Low self-noise: 12 dB-A
• High sensitivity: 18 mV/Pa
• Lightweight design: 145 g, 213 mm length
• Low power consumption
• Made in Germany

TECHNICAL SPECIFICATIONS

• Acoustic principle: Pressure gradient with interference tube
• Directional pattern: Supercardioid / Lobe
• Frequency range: 20 Hz – 20 kHz
• Sensitivity: 18 mV/Pa ±1 dB @ 1 kHz
• Rated impedance: 150 Ω
• Recommended load impedance: 1000 Ω
• Equivalent noise level: 12 dB-A
• Signal-to-noise ratio: 82 dB (A-weighted)
• Maximum SPL (THD <0.5%): 128 dB
• Maximum SPL with pad: 138 dB
• Maximum output voltage: 1.3 dBu
• Power supply: 48 V ±4 V phantom power
• Current consumption: 0.8 mA
• Connector: XLR 3F
• Dimensions: Ø 21 mm × 213 mm
• Weight: 145 g
• Made in: Germany