$ 1,700.00
The KM 183 omnidirectional is based on the tremendously successful KM 184 cardioid microphone, which has become a standard within the global studio community in just a very short time. All "Series 180" microphones are available with either matte black or nickel finish.
Applications
Their slender shapes and the transmission characteristics described below make the "Series 180" especially suitable for a very wide range of tasks in the radio and television sector.
Acoustic features
The KM 183 is the successors of the well proven KM 83, which have been used since the seventies worldwide with great success. 

The KM 183 is a pressure transducer with a boost of approximately 7 dB at 10 kHz in the free field. In the diffuse sound field it has a flat frequency response. 

This difference was achieved with just a slight change of the capsule’s rear opening, and is not due to resonances. 

Electrical features
The "Series 180" microphones have the same transformerless circuitry as is used in the KM 100 system, resulting in excellent technical specifications: 

The microphone operate without any problems, even if the input of following equipment happens to be unbalanced, for example as in some DAT recorders. 

The output of the "Series 180", as in all Neumann microphones, is balanced and phantom (48V) powered.
Economy
The "Series 180" is a good choice for all users who look for a high-quality miniature microphone, but do not need the complex, modular KM 100 system, which continues to be part of the Neumann product range. 

The mechanical construction was simplified, for example, capsule and output stage cannot be separated from each other. For this reason the "Series 180" is an economical alternative without giving up the electroacoustic features the users expect from Neumann microphones.
Features
  • Successor of the worldwide successful KM 83
  • Transformerless circuitry

Includes 2 x KM 183, 2 x SG 21 BK Swivel mount mic clamp, 2 x WNS 100 Foam Windscreen and Woodenbox

Acoustical operating principle Pressure/Pressure gradient transducer
Directional pattern omnidirectional
Frequency range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 12 mV/Pa
Rated impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR1) 24 dB
Equivalent noise level, A-weighted1) 13dB-A
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 70 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 81 dB
Maximum SPL for THD 0.5%2) 140 dB
Maximum output voltage 10 dBu
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 3.2 mA
Matching connectors XLR 3F
Weight approx. 80 g
Diameter 22 mm
Length 107 mm
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