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Schoeps CMC 6U Microphone Preamplifier

Item: REC0001513-000
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The CMC microphone (Colette modular microphone system) amplifiers are not amplifiers in the classical sense. Their c...  All product info

€ 729.00
incl. VAT, incl. Shipping Costs
or extremely cheap from € 22.09 monthly financing
or cheap with financing
available soon, estimated to be in stock: Feb 1, 2020
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CMC Microphone Amplifiers

The CMC microphone (Colette modular microphone system) amplifiers are not amplifiers in the classical sense. Their chief task is to convert the extremely high-impedance signal from the capsule to a very low-impedance one suitable for transmission through a microphone cable. The versions differ in their powering, connectors, output levels and surface finishes, but they all feature a class-A output stage which has neither coupling condensers nor an output transformer. This leads to low source impedance (insensitivity to electrical interference), low distortion, and light weight.

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. That is why we recommend the CMC 6U, which works with both 12 V and 48 V phantom powering so long as it conforms to the relevant standard. If it is certain that 48 Volt phantom powering will be available in all foreseeable recording situations, the CMC 5U can be recommended. A slight difference between the CMC 5 and the CMC 6 occurs at the bottom of the frequency range. The CMC 5 rolls off below 30 Hz, while with digital recording in mind, the CMC 6 is essentially flat to 20 Hz.


  • With balanced, very low-impedance output
  • For use also with long cables (several hundred meters)
  • Can be used with active accessories for miniaturization and special applications
  • Included accessory with every CMC microphone amplifier: polished wood case for two microphones
  • Requires Capsule - See Related Products


  • Powering: 48 V or 12 V phantom - auto switching
  • Connector: XLR-3M - denoted by the 'U' in the model number
  • Current Consumption: 4 mA or 8mA at 12 V
  • Impedance: 35 Ohms or 25 Ohms at 12 V
  • Low-cut frequency (-3dB): 20 Hz


  • Manufacturer: Schoeps
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