Schoeps CMC 6 Ug Microphone Amplifier

Schoeps CMC 6 Ug Microphone Amplifier

  • $ 788.00

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Schoeps CMC 6 Ug amplifier (Preamp/Body)

Includes SG20 stand clamp and protective box.

The Schoeps CMC6 u electrical properties set new standards in terms of low distortion levels and common mode rejection (i.e. suppression of interference induced in the microphone cable).

  • flat frequency response
  • very low harmonic distortion and noise
  • works with 12V and 48V phantom power
  • balanced, low-impedance output
  • high suppression of interference on the microphone cable
  • excellent protection against high-frequency radio interference with "RFI Shield"
  • frequency-independent impedance
  • signal transmission possible over very long cables
  • reliable operation even with weak phantom power
  • symmetrical, transformer- and capacitor-free output stage with a class-A amplifier
  • above 20 kHz, the signal is attenuated for protection against interference in the ultrasonic range, e.g. through the ultrasonic autofocus of a film camera

The capsules of condenser microphones requires a microphone preamplifier. Thus a complete microphone of the Colette series comprises any of the twenty available types of capsules combined with an amplifier. The CMC 6 U 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 is responsible for providing the necessary electric charge to the capsule, without which it would be unable to generate a signal. Since the capsule's output signal is very weak (Hi-Z), it must be amplified. In order for the microphone's output to cleanly reach the next stage in the signal chain, it must undergo balancing and impedance matching before transmission. The CMC 6 incorporates a balanced, direct-coupled class-A amplifier, yielding a low output impedance, high RF shielding, and minimal distortion.

Frequency range 20 Hz - 20 kHz

Sensitivity dependent on corresponding capsule

Maximum output voltage 1 V (0 dBV) with 1 kΩ load

Low cut filter 20 Hz, 12 dB/octave

Minimum recommended load impedance 1 kΩ

Maximum SPL (THD < 0.5%) with MK 4: 131 dB-SPL (P48, P12)

Output impedance 42 Ω

Maximum cable length > 400 m / ~1300ft

Schoeps RFI shield Yes

Powering standard / Valid range P48 / 20-52 volts, P12 / 10-13 volts

Current consumption 4 mA (P48), 8 mA (P12)

Common mode rejection (at 1 kHz) >60 dB

Output XLR-3M, analog, 1 channel

Surface finish matte gray