Neumann KMR 82 i 9" Shotgun Microphone With Case And Windscreen, Nickel

Neumann's KMR82i is a shotgun microphone that has a high directivity that remains within the acceptable angle independent of frequency. The advantage is that a sound source, such as an actor on stage, will not change its apparent tonal balance when moving within this area.

In principle, Neumann shotgun microphones use a combination of a pressure gradient transducer and an interface tube. If the wavelength of the frequency is longer than the tube length, the microphones work as pressure gradient transducers. At higher frequencies they operate as interference transducers for lateral sound. Off-axis sound sources are picked up with reduced level, but without coloration. Therefore, the microphones are perfectly suited to record individual instruments of an orchestra. The pickup areas of several shotgun microphones may even overlap as, for example, during recordings on a large stage, without causing any problem.

The KMR82i has a high-pass filter to suppress subsonic interference. The cutoff frequency may be raised to 120Hz (-3 dB) with a built-in two position slide switch. Its low power consumption, light weight, and low sensitivity to wind and handling noise, makes it an ideal tool for news gathering on location. Small dimensions, together with a balanced center of gravity, make handling easy without any whiplash effect. However, when on location and during strong wind conditions, we recommend using an additional wind screen (included as a standard accessory). The wind screen is made of polyurethane foam and also serves as soft padding of the microphone in its leather carrying case.

Applications

Shotgun microphones are particularly useful in recording situations where a microphone cannot be positioned within the desired distance of the sound source to produce a sufficiently loud signal level.

Typical applications are film and video recordings, where the microphone should not appear in the picture.

The KMR82i is very often used on stage.

Includes

• KMR82i Microphone
• WS82 Windscreen

Features

• Free of coloration
• Interference tube microphone with shotgun directional characteristic
• Interference/pressure-gradient transducer
• High lateral and back attenuation
• 45° recording angle
• Switchable filter or preattenuation features
• Extensive accessories for outdoor use
• Light weight: 250g

Specifications

• Acoustical operating principle: Interference transducer
• Directional pattern: Supercardioid/lobe
• Frequency range: 20Hz - 20kHz
• Sensitivity at 1kHz into 1kΩ: 21mV/Pa
• Rated impedance: 150Ω
• Rated load impedance: 1kΩ
• Equivalent noise level, CCIR*: 23dB
• Equivalent noise level, A-weighted*: 12dB-A
• Signal-to-noise ratio, CCIR* (rel. 94dB SPL): 71dB
• Signal-to-noise ratio, A-weighted* (rel. 94dBSPL): 82dB
• *According to IEC60268-1; CCIR-weighting according to CCIR468-3, quasi peak; A-weighting according to IEC61672-1, RMS
• Maximum SPL for THD 0.5%**: 128dB
• **Measured as equivalent elec. input signal
• Maximum output voltage: 2.6dBu
• Dynamic range of the microphone amplifier (A-weighted): 116dB
• Supply voltage (P48V, IEC61938): 48V ± 4V
• Current consumption (P48V, IEC61938): 0.7mA
• Matching connector: 3-pin XLR-F
• Weight: 250g
• Diameter: 21mm
• Length: 395mm