Schoeps CMC 6 U
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Schoeps
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The CMC 6 Ug: The Heart of the SCHOEPS Modular System
At SCHOEPS, the modular logic is not just a comfort choice: it is the foundation of the design. A condenser microphone capsule cannot be used directly with a microphone input or a simple cable; it requires a dedicated microphone amplifier responsible for polarizing and amplifying the signal from the capsule. The CMC 6 Ug is precisely this "body" of the microphone: it houses one of the MK capsules from the Modular System to form a complete microphone, perfectly suited to the demands of professional sound recording.
Within the range, the Ug version stands out for its compatibility and power supply flexibility: it accepts standardized phantom power at 12 V (P12) and 48 V (P48), with automatic detection. The philosophy remains that which has made the CMC series renowned: a carefully designed signal path, very clean behavior, and a design made to endure over the years while remaining a reference on sets, in classical music, broadcast, and studio environments.
Who Is the CMC 6 Ug For, and In What Uses Does It Make a Difference?
The CMC 6 Ug is aimed at sound engineers, boom operators, music recordists, and sound designers who want a high-end, scalable, and coherent system. By choosing a CMC amplifier and one or more MK capsules, you adapt your microphone setup to each context: close miking, ambience, stereo pair, vocals, acoustic instruments, or live capture.
The P12 and P48 compatibility is a tangible advantage for hybrid configurations: in the studio, P48 is the most common standard on preamps and audio interfaces. On location or in mobile recording, the ability to work with P12 can offer autonomy benefits depending on the available power supply. Add to this a low-impedance balanced output and strong interference resistance: the CMC 6 Ug performs well both with long cable runs and near more electromagnetically charged environments.
Audio Design: Low Impedance, Symmetry, and Class A for a Clean Signal
An Usable Capsule Signal Without Compromising Transparency
The role of the amplifier is not just to "increase the level." It first supplies the capsule with the necessary current to generate a signal, then converts this very weak, high-impedance signal into a low-impedance signal capable of traveling through a cable without degradation. This conversion is essential to limit sensitivity to disturbances and ensure background noise remains low within a professional sound recording chain.
Balanced Class A Output Stage, Without Transformer or Capacitor
The CMC 6 Ug integrates a balanced Class A output stage designed without transformer or output capacitor. This architecture aims for several audible and measurable benefits: very low output impedance, excellent interference resistance, and distortion kept at a very low level. The result: a stable, clear, and reliable signal, whether for a highly detailed voice-over, a string quartet, or an ambience recording where micro-dynamics matter.
P12 and P48 Power Supply: Automatic Adaptation, Practical for Field Use
The circuit automatically detects whether the phantom power is 12 V or 48 V and adapts accordingly. The characteristics remain generally consistent between the two modes, with the main difference being current adaptation to voltage. In practice, this makes life easier when switching from a studio (P48) to a battery-powered or portable system (P12) without changing the amplifier. Compared to versions or chains dedicated to a single standard, the versatility of the CMC 6 Ug allows maintaining the same signature and workflow.
Technical specifications
| Frequency response | 20 Hz - 40 kHz | Color | Grey |
| Connection | XLR | ||
| Frequency range | 20 Hz to 20 kHz | Maximum cable length | over 400 m |
| Maximum output voltage | 1 V (0 dBV) into 1 k? load | SCHOEPS RFI Shield | Yes |
| Maximum sound pressure level (total harmonic distortion below 0.5%) with MK 4 | 131 dB SPL (P48, P12) | Power supply, standard and valid range | P48 (20 to 52 V) and P12 (10 to 13 V) |
| Common mode rejection (at 1 kHz) | greater than 55 dB | Consumption | 4 mA (P48) and 8 mA (P12) |
| Output impedance | 42 ohms | Dimensions | 116 x 20 mm |
| Minimum recommended load impedance | 1 k? | Weight | 60 g |
| Low-cut filter | 20 Hz, 12 dB per octave | Finish | Gray |
| Output | XLR-3M, analog, 1 channel | ||
Questions frequently asked
Which capsules are compatible with the SCHOEPS CMC 6 U?
This microphone body accommodates MK capsules from the SCHOEPS Modular System. The capsule and the amplifier together form a complete microphone.
Does the CMC 6 Ug operate on 12 V and 48 V phantom power?
The P12 power supply ranging from 10 to 13 V and P48 from 20 to 52 V are automatically detected. The current consumption is 8 mA on P12 and 4 mA on P48.
What low-cut filter is integrated?
A low-cut filter at 20 Hz with a slope of 12 dB per octave is integrated. It helps reduce very low frequencies. The specified frequency response extends from 20 Hz to 20 kHz.
What cable length can be used with this microphone body?
The specified maximum cable length exceeds 400 m. The output impedance of 42 ohms and balanced XLR output contribute to signal transmission over long distances.
What SPL level can the CMC 6 Ug handle with an MK 4 capsule?
With an MK 4, the maximum sound pressure level is 131 dB SPL for total harmonic distortion below 0.5%, whether on P12 or P48.
