Shotgun Microphone

KMR 81 i

Short shotgun microphone for film dialogue and ENG

  • Shotgun microphone for medium distances
  • Lobe shaped pattern with 90° pickup angle
  • High directivity without off-axis coloration

COLORS AND VARIANTS

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Suited for:

Max. SPL
138 dB
S/N Ratio
82 dB
Sensitivity
18 mV/Pa

Pristine Dialogue, Uncolored Sound

The KMR 81 i is a shotgun microphone for medium distances, e.g. for film dialogue with a clear and focused sound while the microphone is placed outside the picture. Off-axis coloration is minimized to avoid sound change when actors are moving. The KMR 81 i offers high sensitivity with low power consumption and is lightweight for easy handling.

Dealer Description

A Problem Solver with a Touch of Class

The KMR 81 i is a shotgun microphone with a high directivity for situations that require the microphone to be kept at a distance from the source. This is often the case in electronic news gathering (ENG) and film dialogue recording, where the microphone must remain invisible. The KMR 81 i can also be used to obtain a clear and focused sound in noisy environments.

Technically speaking, the KMR 81 i combines a pressure gradient condenser capsule with a medium-length interference tube to achieve a narrow acceptance angle of 90˚ and excellent rejection of unwanted sound. Unlike many other shotgun microphones, the Neumann KMR 81 i’s lobe shaped pickup pattern is frequency-independent. In other words, off-axis sound is picked up at reduced level but without unwanted coloration. This makes it easy to correct a misaligned microphone in postproduction.

Compared to other shotgun microphones, the Neumann KMR 81 i offers a more natural sound image. Its frequency response is highly linear up to 2 kHz while a broad treble lift compensates for high frequency losses that occur when recording at greater distances. The KMR 81 i offers very low self-noise of only 12 dB-A and a high sensitivity of 18 mV/Pa, which can be reduced by 10 dB to protect the microphone input from overload. The KMR 81 i can handle high SPLs of up to 128 dB without audible distortion (138 dB SPL with the preattenuation switch engaged). A second switch activates a 200 Hz low cut to compensate for the proximity effect when the KMR 81 i is use at short distances.

Applications

The KMR 81 i is primarily designed for film and broadcast applications. It is an excellent microphone for movie dialogue both in the studio and on location. The KMR 81 i is very lightweight and has a balanced center of gravity, making it a pleasure to use, even after several hours. Due to its low power consumption and its low sensitivity to wind and handling noise, the KMR 81 i is excellently suited for on-location work. Thanks to its natural sound and excellent off-axis behavior, the KMR 81 i can also be used as a problem solver in critical recording situations, e.g. to pick up a soloist in front of an orchestra.

  • High directivity with 90° recording angle
  • Excellent rejection of unwanted sound
  • Natural sound without off-axis coloration
  • Low cut and pad switches
  • Lightweight (145 g)
  • Low power consumption
Acoustical operating principle Pressure gradient interference transducer
Directional Pattern Supercardioid/lobe
Frequency Range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 18 mV/Pa ± 1 dB
Rated Impedance 150 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR¹⁾ 23 dB
Equivalent noise level, A-weighted¹⁾ 12 dB-A
Maximum SPL for THD 0.5%²⁾ 128 dB
Maximum SPL for THD 0.5% with preattenuation²⁾ 138 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾ 71 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL)¹⁾ 82 dB
Maximum output voltage 1.3 dBu
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 0.8 mA
Matching connector XLR 3 F
Weight 145 g
Diameter 21 mm
Length 213 mm

1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS

2) measured as equivalent el. input signal

Diagrams

Hypercardioid KMR 81 i

Hypercardioid KMR 81 i Hypercardioid KMR 81 i
TLM 49 Set

EA 2124 A mt

Shock Mount

EA 2124 A mt
TLM 49 Set

WS 81

Windscreen

WS 81
TLM 49 Set

N 248

Power Supply

N 248
TLM 49 Set

MF 2

Table Stand

MF 2
TLM 49 Set

MF 3

Table Stand

MF 3
TLM 49 Set

MF 4

Floor Stand

MF 4
TLM 49 Set

MF 5

Floor Stand

MF 5
TLM 49 Set

MZEF 8060

Vertical Bar

MZEF 8060
TLM 49 Set

MZEF 8120

Vertical Bar

MZEF 8120
TLM 49 Set

STV 4

Stand Extension

STV 4
TLM 49 Set

STV 20

Stand Extension

STV 20
TLM 49 Set

STV 40

Stand Extension

STV 40
TLM 49 Set

STV 60

Stand Extension

STV 60
TLM 49 Set

MNV 21 mt

Auditorium Hanger

MNV 21 mt
TLM 49 Set

MNV 87

Auditorium Hanger

MNV 87
TLM 49 Set

SG 21 bk

Stand Mount

SG 21 bk
TLM 49 Set

IC 3 mt

Microphone Cable

IC 3 mt

KMR 81 i

Color nickel

CAT. NO. 006961

KMR 81 i
  • KMR 81 i Microphone
  • WS 81 Windscreen

KMR 81 i mt

Color black

CAT. NO. 006962

KMR 81 i mt
  • KMR 81 i mt Microphone
  • WS 81 Windscreen

Suited for:

Max. SPL
138 dB
S/N Ratio
82 dB
Sensitivity
18 mV/Pa

WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to: www.p65warnings.ca.gov.

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