Neumann KMS104/105 Microphone

The Neumann KMS series is the internationally acknowledged standard for first-class stage microphones.

The KMS 104 and the KMS 104 Plus have a condenser microphone capsule with a cardioid directional characteristic which provides the best possible suppression of sounds originating from behind the microphone. In contrast, with its supercardioid characteristic the KMS 105 is particularly good at suppressing sounds originating from the entire 180° hemisphere behind the microphone. The KMS 104 plus features an extended bass frequency response.

Acoustic features

In KMS microphones, carefully adjusted acoustic filters and transformerless impedance converters can handle very high sound pressure levels and prevent the microphones from being overloaded even by strong plosive sounds.

Electrical features

The microphone has an invariable, built-in high-pass filter with a cutoff frequency of 120 Hz (–3 dB, measured in a free sound field). The dynamic range of the KMS microphones is 132 dB, and the maximum sound pressure level is 150 dB.

Mechanical features

The KMS 104/104 plus and KMS 105 have thick-walled metal housings, which also provide effective protection against handling noise.

Neumann KMS 104/105 User Guide (PDF)

Specifications:

• Acoustical operating principle: Pressure gradient transducer
• Directional pattern: Cardioid/cardioid/supercardioid
• Frequency range: 20 Hz ... 20 kHz
• Sensitivity at 1 kHz into 1 kohm: 4.5 mV/Pa
• Rated impedance: 50 ohms
• Rated load impedance: 1 kohms
• Equivalent noise level, CCIR: 28 dB
• Equivalent noise level, A-weighted: 18 dB-A
• Signal-to-noise ratio, CCIR (rel. 94 dB SPL): 66 dB
• Signal-to-noise ratio, A-weighted (rel. 94 dB SPL): 76 dB
• Maximum SPL for THD 0.5%: 150 dB
• Maximum output voltage: 12 dBu
• Dyn. range of the mic. amplifier (A-weighted): 132 dB
• Supply voltage (P48, IEC 1938): 48 V ± 4 V
• Current consumption (P48, IEC 1938): 3.5 mA
• Matching connector: XLR3F
• Weight: approx. 300 g
• Diameter: 48 mm
• Length: 180 mm