MPN #132005    
Schoeps CMC6Ug

$1074.00

Financement disponible

The CMC 6Ug is the standard high quality amplifier body for Schoeps Colette series of capsules. It can be paired with any capsules of the Schoeps Colette series.



The capsules of condenser microphones (the only type which SCHOEPS manufactures) can't be connected directly to microphone cables or inputs; a microphone amplifier is required in between. Thus a complete microphone of the Colette series comprises any of the twenty available types of capsules combined with an amplifier.

The CMC 6 Ug is designed for standard 48- and 12-Volt phantom powering. Its circuitry recognizes the supply voltage and adjusts itself automatically. Its performance characteristics remain essentially the same either way; mainly, the difference is that the current drawn at 12 Volts is greater than at 48 Volts. However, the 12-Volt mode consumes less power and might be preferred for battery-powered recording.

The microphone amplifier provides the electrostatic charge which the capsule requires in order to produce a signal. Since only a miniscule amount of current is contained in this signal, amplification of the current is required. To avoid interference to the signal on the way from the microphone to the input of the mixer or preamp, the signal is conveyed at low impedance and in balanced form. The CMC 6 Ug amplifier offers a symmetrical, transformerless, direct-coupled Class A output stage with low impedance, low distortion, and high freedom from interference.

Please note:
The two amplifiers in a stereo pair of microphones should be of the same type.

Variant Amplifier Versions
Special versions of the CMC 6 Ug are available with different gain (amplification factor) or extended frequency range. The CMC 6 Ug can be specially ordered, or retrofitted at the factory, to have a different (e.g. lower) low-frequency limit from the standard version (see, for example, the "linear" version listed below).

CMC 6 Ug xt - the 40 kHz version
This version is indicated by the letters "xt" engraved on the microphone's output socket. It extends the frequency response of the axially addressed Colette capsules beyond 40 kHz.
On the pages of these capsules, the frequency response curves are shown with both, the standard CMC 6 Ug amplifier and the CMC 6 Ug xt.

CMC 6 Ug linear
The CMC 6 Ug microphone amplifier normally has a gradual rolloff in response below 20 Hz to guard against infrasonic disturbances from various sources such as air movement and vibration. However, when using pressure (omnidirectional) transducers, particularly with digital recording, it can be desirable to pick up frequencies below 20 Hz without attenuation. The special technology of the CMC 6 Ug linear microphone amplifiers makes this possible; on request we can deliver microphone amplifiers with response that is flat to as low as 3 Hz.

Caution must be advised with respect to infrasonics, however. Since pressure transducers can pick up very low frequencies, ventilation systems in large spaces (churches, concert halls) or traffic rumble can create a problem. With pressure gradient transducers the risk is even greater. They are far less sensitive to very low frequency sound, but respond much more strongly to low-frequency mechanical stimuli such as air currents and solid-borne noise. Such signals may be below the audible range of frequencies, but they can overload electronic circuitry and produce severe distortion, particularly in transformer-coupled circuitry.

CMC 6 Ug +5 dB"
The sensitivity of a microphone using this type of amplifier is 5 dB higher than with the standard version, but the equivalent noise level and maximum output voltage are not materially affected. Thus the highest sound pressure level which the microphone can accept without distortion is 5 dB lower than in the standard version, while the signal-to-noise ratio is essentially the same with either gain setting.
This version might be chosen in order to raise the microphone's signals above the noise level of the equipment to which it will be connected, and / or for working with sounds that occur mainly at low levels.
  • flat frequency response
  • extremely low noise and distortion
  • balanced, very low-impedance output
  • can be used with very long cables
  • well-protected against RFI
  • for use with 12- or 48-Volt phantom powering
  • Powering voltage : 12 / 48 V
  • Current consumption with 12 V : 8 mA
  • Current consumption with 48 V : 4 mA
  • Impedance (at 12 V) : 25
  • Impedance (at 48 V) : 35
  • Low-cut frequency : 20 Hz
  • Maximum output voltage : 1 V
  • Minimum recommended load impedance : 600
  • Length : 116 mm
  • Diameter : 20 mm
  • Weight : 60 g
  • Surface finish : matte gray (g) or nickel (ni)
  • 5.0
    Dave L.
    Toronto, Canada
    18 novembre 2015
    Schoeps and Studio Economik
    I'm really loving my Schoeps mics I bought here at Studio Economik. I bought a matched pairs of Omni MK2h's and MK4's, a Mk8 and four CMC6Ug amps. The Schoeps sound is glorious and the guys at Studio Economik have been extremely helpful. Thanks, guys!
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