Colette Modular Microphone US Set. (2) CMC6 with MK4 Cardiods, A20/A20S Suspensions, B5 Popscreens. Includes custom wooden case. Matte gray (g) or nickel (ni) finish.
The chief task of a CMC microphone amplifier is to convert the extremely high-impedance signal from the capsule to a very low-impedance one suitable for transmission through a microphone cable.
Several versions are available which differ only in their powering, connectors, output levels and surface finishes. They all feature a symmetrical class-A output stage with neither coupling condensers nor an output transformer. This design helps them to achieve extremely low distortion and light physical weight, while their very low output impedance helps make them insensitive to electrical interference.
Schoeps CMC6 Features :
- Balanced, very low-impedance output
- Can be used with very long cables (several hundred meters)
- Can be used with Active Accessories for miniaturization and special applications
- Collette modular microphone system amplifier.
- 12V-48V Phantom Power and Balanced Output.
- Surface finish in Matte gray (g) finish.
Schoeps Microphone Capsule MK 4 Features :
- Cardioid pattern thats very well maintained throughout the frequency range
- Ideal for music, speech, and universal applications
- Surface finish in Matte gray (g) finish.
The MK 4 is optimized for maximum rejection of rear-incident sound. Typical of the classic cardioid, at 90° to its axis the attenuation is 6 dB, while from the rear (180°) it can be as much as 30 dB, depending on the frequency. The random-energy efficiency* – the ratio of on-axis sensitivity to diffuse sound field efficiency – is 4.8 dB. (The higher this figure, the less “room sound” is picked up by a microphone, and the less susceptible it is to acoustic feedback.)
Due to its directivity, the MK 4 can be placed 1.7 times farther from the sound source than a pressure transducer of equivalent sensitivity, while maintaining the same proportion of direct and reverberant sound. In the diffuse sound field (distant from a sound source in a room, for instance), this microphone type has flat frequency response except for a slight emphasis around 10 kHz.
It is ideal for speech as well as for music recordings, with a well-defined sound image free of coloration. When used for X/Y recording or as a Mid microphone in a Mid-Side configuration, it delivers exceptional results. It is also the capsule intended for use with our ORTF stereo microphone (MSTC 64 or STCg).
The MK 4 cardioid microphone type has the most general applicability and is the type most widely used.
On the choice of amplifier type:
If a recording device has balanced inputs but lacks phantom powering, it may be possible to add 12 Volt powering rather easily by using a supply voltage that is already present internally. In most cases 48 Volts would need to be generated with a voltage multiplier circuit, which is more difficult to implement. Thats why Schoeps recommends the CMC 6, which works with both 12 V and 48 V phantom powering so long as the relevant standard is followed.
