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Audio & Sound Equipment » Microphones/DI boxes » Hard Wired Microphones » Studio, Stage, Instrumental, Microphones » Condenser Microphones, Stand Mount » Condenser, Modular Style, Preamps and Capsules and Systems

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Neumann KM131-SET
Omnidirectional Mic System, free field equalized, -10dB pad, clip, windscreen and case.

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Omnidirectional Mic System, free field equalized, -10dB pad, clip, windscreen and case.

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Neumann KM131-SET

The variable condenser miniature microphone system consists of several active microphone capsules with different directional characteristics, an output stage, and numerous accessories.

Currently there are seven active capsules available: omni diffuse-field equalized, omni free-field equalized, cardioid, wide-angle cardioid, cardioid with bass roll-off, hypercardioid, and figure-8.

Through the modular construction of mic capsules and the output stage it is very easy to adapt the system to a wide range of applications. The mic becomes nearly invisible during work with cameras (film, video), on stage, or suspended from the ceiling in a concert hall.

An active capsule can also be screwed directly onto the output stage. The result is a compact miniature microphone.

Construction
The microphones are only 92 or 110 mm resp. long and 22 mm in diameter. They consist of the condenser capsule and the output stage. Both parts can be unscrewed from each other. The system offers several condenser capsules with different directional characteristics.

Numerous accessories can be mounted between the capsules and the output stage. The capsules attach to cables, capsule extensions, swivel mounts, table stands, goose-necks, stereo mounts, and hangers. Therefore, it is very easy to adapt the system to a wide range of applications.

The active capsule itself is only 35 or 47 mm resp. long. The KM 100 output stage and the active microphone capsule may be separated by up to 50 m of interconnecting cable. These cables are 3 mm in diameter, and therefore very inconspicuous.

Acoustic features
AK 31 is a free-field equalized pressure transducer with a flat frequency response up to 20 kHz (in the free field). In the diffuse sound field this microphone has a high frequency roll-off above 5 kHz.

Electrical features
The KM 100 is phantom powered (48 V) and uses transformerless output circuitry. This has several advantages. It features high output capability and extremely low self noise. It provides exceptionally clean sound, free of any coloration. As with traditional transformers, this circuit approach ensures good common mode rejection. The balanced output signal is protected against interference.

The construction is extremely compact. The entire microphone circuitry is on a single hybrid module measuring only 2 cm² in area. It is built into the microphone capsule, therefore the term “active capsules”.

All sensitive components are protected within the capsule. As a result, the quality of the audio signal is never compromised through the use of accessories, for example, when the capsule is detached from the output stage and mounted on a cable or a gooseneck.

Even with a long cable between active capsule and output stage, the signal is immune to external interference.

Preattenuation
The output stage has a 10 dB switch. Attenuation is achieved by reducing the capsule voltage to one third.

When the switch is on, the microphone is capable of accepting sound pressure levels up to 150 dB without being overloaded.

Connectors
To diminish the number of connectors within the KM 100 System some accessories were modified. They can now be screwed directly onto the KM 100 output stage without using the KA 100 cable adapter. The new accessories which include the cable adapter, were renamed adding the suffix KA. For example: LC 3 is now LC 3 KA.

The separate KA 100 cable, needed for older accessories, will be available also in future.

The KM 100 output stage has a 3-pin XLR connector.

Sound diffraction sphere
The SBK 130 sound diffraction sphere slips onto the front of the KM 130/KM 131 pressure microphones. The diaphragm becomes an integral part of the surface of the sphere. This affects the frequency response of the microphones.

While sounds coming from the front-half space are emphasized by up to 2.5 dB between 2 kHz and 10 kHz, sounds arriving from the rear-half space are attenuated by a maximum of 2.5 dB in the range above 5 kHz.

Since the sound diffraction sphere causes the pressure buildup of the KM 130/KM 131 pressure microphones to begin earlier, the frequency response rises smoothly in the middle and upper range. This is similar to a typical pressure gradient microphone, where the directivity increases with rising frequencies. However, since the KM 130/KM 131 are pressure microphones, they maintain a linear sensitivity down to the lowest frequencies.

This changing directivity allows to record at a greater distance from the sound source, and makes the KM 130/KM 131 microphones especially suited as stereo main microphones in A-B configurations.

KM 100 F Output stage
The KM 100 F output stage is an alternative to the KM 100 output stage. In contrast to the KM 100 output stage with a flat frequency response, the KM 100 F attenuates frequencies below 80 Hz at 6 dB/octave. This eliminates or suppresses interference caused by wind or structure-borne noise.

A built-in slide switch allows to raise the cut-off frequency (-3 dB point) from 80 Hz to 120 Hz. An additional slide switch lowers the sensitivity by 10 dB.

Specifications

Acoustical Operating Principle: Pressure Transducer
Directional Pattern: Omnidirectional free field eq
Frequency Range: 20Hz-20kHz
Sensitivity (1kHz into 1 kohm): 12 mV/Pa
Rated Impedance: 50 ohms
Rated Load Impedance: 1000 ohms
Equivalent SPL CCIR 468-3: 25 dB
Equivalent SPL DIN/IEC 651: 16 dB-A
S/N ratio CCIR 468-3: 69 dB
S/N ratio DIN/IEC 651: 78 dB
Maximum SPL for THD 0.5%: 140 dB
Maximum SPL for THD 0.5% with preattenuation: 150 dB
Maximum Output Voltage: 10 dBu
Dyn. range of the mic amplifier DIN/IEC 651: 124 dB
Supply voltage: 48V +/- 4V
Current Consumption: 2 mA
Matching Connector: XLR 3F
Weight: 80 g
Dimensions (D x L): 22mm x 92mm

	Neumann KM100 Powering Module only, KM100 series The KM 100 is phantom powered (48 V) and uses transformerless output circuitry. This has several advantages. It features high output capability and extremely low self noise. It provides exceptionally clean sound, free of any coloration. As ... Usually ships in 2-3 weeks List Price: $458.00 Our Price $329.00 You save 28%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann AK31 Active Capsule, Omni, Direct AK 31AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 30 and KM 100, for example, make up the ... Usually ships in 2-3 weeks List Price: $1,550.00 Our Price $1,010.14 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann SG21/17MT Mic Clip For Neumann KM80,180,100.BLK Mic Clip For KM80,180,100.BLK Usually ships in 1-2 business days List Price: $98.00 Sale Price $62.43 You save 36%! Usually ships in 1-2 business days
	Neumann WNS100 Replacement windscreen Close range sounds, wind, and fast movements of the microphone boom, all may cause interfering noises. To avoid these unwanted sounds, windscreen accessories are available.Typically, they are made out of open-cell polyurethane foam. These ... Usually ships in 1-2 business days List Price: $28.00 Our Price $19.21 You save 31%! Usually ships in 1-2 business days
	Neumann MNV100 Auditorium Hanger for AK Capsl MNV 100The MNV 100 auditorium hanger is used to suspend an active capsule of the KM 100 system freely from its LC 3 KA interconnecting cable. The assembly can be rotated and tilted to any desired angle. Order Information Usually ships in 2-3 weeks List Price: $118.00 Our Price $75.17 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann MNV21(MT) Auditorium Hanger Auditorium Hanger Usually ships in 1-2 business days List Price: $50.00 Sale Price $31.85 You save 36%! Usually ships in 1-2 business days
	Neumann KA100 Cable Adapter W/LC3 Cable Adapter Usually ships in 1-2 business days List Price: $198.00 Sale Price $126.13 You save 36%! Usually ships in 1-2 business days
	Neumann KVF158-KA Capsule Ext W/Gooseneck/700mm KVF 158 KAAny KVF... capsule extension allows to use the active capsules separated from the output stage without the need for additional cables. The rigid part of the capsule extension is 6.5 mm in diameter, the flexible gooseneck has ... Usually ships in 2-3 weeks List Price: $828.00 Our Price $537.98 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann DS120 Double Microphone Mount, Stereo Bar The DS 120 has a 150 mm long support bar with two movable 1/2" threaded studs. Two microphones in their mounts can be attached. Any space or angle between the microphones is freely adjustable.The DS 120 has a 5/8"-27 female thread, plus a ... Usually ships in 2-3 weeks List Price: $308.00 Our Price $196.20 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Neumann DS21-MT Double Microphone Mount for two mini-mics in one location The DS 21 mt is designed for applications where two miniature microphones are used simultaneously in one location. The DS 21 mt has a 5/8"-27 female thread, plus a thread adapter to connect to 1/2"- and 3/8" stands. Usually ships in 2-3 weeks List Price: $198.00 Our Price $126.13 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Neumann DA-AK Suspension Mount for MS Recording DA-AKThe DA-AK elastic suspension mounts two active capsules in parallel for MS recordings, e.g. AK 20 and AK 40. It has a swivel mount with 3/8" thread. Usually ships in 2-3 weeks List Price: $438.00 Our Price $279.01 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann DA-KM Suspension Mount for Neumann KM120 & KM140 The DA-KM elastic suspension mounts two miniature microphones in parallel for MS recordings, e.g. KM 120 and KM 140. It has a swivel mount with 3/8" thread. Usually ships in 2-3 weeks List Price: $498.00 Our Price $317.23 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann EA2124A Optional suspension mount The EA 2124 A mt is able to accept microphones from 21 to 24 mm in diameter. It has a swivel mount with a 5/8"-27 female thread and can be fastened to tripods. Included is a threaded adapter to connect to 1/2"- and 3/8" studs. Available in ... Usually ships in 2-3 weeks List Price: $498.00 Our Price $317.23 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann SMK8I Gooseneck w/XLR The SMK 8 i gooseneck is 360 mm long and serves as electrical and mechanical connection of a microphone with XLR 3 connector. A counter nut secures the microphone against rattle and - to a certain extent - against theft. The ... Usually ships in 2-3 weeks List Price: $288.00 Our Price $179.93 You save 38%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Neumann SG100 Swivel Mount, black SG 100Swivel mount to attach capsule extensions KVF ... of the variable KM 100 miniature microphone system to tripods. It has a 5/8"-27 thread, plus a thread adapter to connect to 1/2"- and 3/8" stands. Order Information Usually ships in 2-3 weeks List Price: $178.00 Our Price $106.20 You save 40%! Usually ships in 2-3 weeks Need it sooner? Call us!
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	Neumann SG-AK Swivel Elbow for AK,KM100 The SG-AK swivel mount can be inserted between active capsules and the output stage of the KM 100 system. The capsule can then be swiveled and orientated through 90°. In combination with an elastic suspension and a table flange, a ... Usually ships in 2-3 weeks List Price: $358.00 Our Price $236.82 You save 34%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann MF4 Table Stand/Floor Base Table Stand/Floor Base Usually ships in 1-2 business days List Price: $318.00 Sale Price $110.00 You save 65%! Usually ships in 1-2 business days
	Neumann WJAK WindSock for WKD-AK Fur-like "windjammers" are available as an accessory for WK... windscreens. Their effect is added to that of the WK windscreens. During strong wind conditions they ensure an even better suppression of wind noise.Wind noise attenuation ... Usually ships in 2-3 weeks List Price: $358.00 Our Price $228.05 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Neumann WJKM WindSock for WKD-KM WindSock for WKD-KM Usually ships in 1-2 business days List Price: $358.00 Sale Price $85.00 You save 76%! Usually ships in 1-2 business days
	Neumann WKD-AK Blimp Windscreen for AK20/40 & DA-AK When microphones are exposed to strong wind, WK... windscreens should be used for best performance. Only in the upper frequency range is the output level slightly attenuated. The wind noise attenuation was measured without electrical ... Usually ships in 2-3 weeks List Price: $488.00 Our Price $310.86 You save 36%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
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	Neumann AK30 Omni Difusse Active Capsule only The Neumann AK30 is an omni-directional capsule for the Neumann KM100 system. It is a diffuse field equalized pressure transducer with a flat frequency response up to 10khz (in the diffuse field). In the free sound field this ... Usually ships in 2-3 weeks List Price: $1,238.00 Our Price $806.81 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann AK40 Cardioid Polar Active Capsule AK 40AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 30 and KM 100, for example, make up the ... Usually ships in 2-3 weeks List Price: $1,238.00 Our Price $799.00 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann AK43 Active Capsule.Wide Card Pattn AK 43AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 30 and KM 100, for example, make up the ... Usually ships in 2-3 weeks List Price: $1,238.00 Our Price $804.38 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann AK45 Active cardioid Capsule only AK 45AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 30 and KM 100, for example, make up the ... Usually ships in 2-3 weeks List Price: $1,238.00 Our Price $804.38 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping
	Neumann AK50 Hypercardioid Active Capsule AK... active capsules are part of the variable miniature microphone system. Together with the KM 100 output stage AK... active capsules form a complete microphone. AK 50 and KM 100, for example, make up the KM 150. The AK 50 is a pressure ... Usually ships in 2-3 weeks List Price: $1,550.00 Our Price $1,010.14 You save 35%! Usually ships in 2-3 weeks Need it sooner? Call us!	Free Shipping

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