Schoeps CMC 1U – Small Colette microphone amplifier
The CMC 1 is a small Colette microphone amplifier, about one-third the length and 53% lighter than the CMC 6. It is compatible with all components of the Colette system and can be used in place of the CMC 6 without compromise, for all applications in which the size and weight of the microphone play a role.
At SCHOEPS, โuncompromising miniaturizationโ means that the electrical characteristics of the CMC 1 are equal to, or even better than, those of the CMC 6. Through modern electronic design, these outstanding electrical properties have been achieved:
- high maximum SPL: 135 dB-SPL with the MK 4 (0.5% THD or less)
- very low current consumption: 2.0 mA at 48 Volts
- operates on 48 V or 12 V phantom power, reliable operation even if powering is somewhat marginal
- very high immunity from RF interference with the SCHOEPSย RFI Shield; high immunity to cable-induced hum and other interference (field tested with Audio Limited A 10, etc.)
- flat frequency response
- very low distortion constant output impedance across the audio frequency range
- balanced, direct-coupled, class-A output circuit
- output is filtered in the ultrasonic range to prevent interference, e.g. from camera autofocus
A complete Colette-series microphone consists of an MK capsule and a CMC amplifier. All capsules and active accessories of the Colette system are compatible with the CMC 1.
The CMC 1 works with standard 12-Volt or 48-Volt phantom powering. Power consumption is lower at 12 Volts–an advantage for battery-powered operation.
TECHNICAL SPECIFICATIONS
- Frequency range: 20 Hz-20 kHz
- Sensitivity: see correspondingย capsule
- Maximum output voltage: 1.8 V (5 dbV) with 1 kฮฉ load
- Maximum sound pressure level (THD < 0.5 %):
- 135 dB-SPL (P48) with MK 4
- 131 dB-SPL (P12) with MK 4
- Low cut filter: 20 Hz, 12 dB/oct
- Output impedance: 50 ฮฉ +/- 1 ฮฉ (8 Hz – 50 kHz)
- Minimum recommended load impedance: 1 kฮฉ
- Common mode rejection ratio (at 1 kHz): > 55 dB
- Maximum cable length: > 400 m (~1,300 ft)
- SCHOEPS RFI Shield: Yes
- Powering standard / Valid range:
- P48 / 30-52 V
- P12 / 11-13 V
- Current consumption:
- 2 mA (P48)
- 3 mA (P12)
- Output: XLR-3M, analog, 1 channel
- Length: 36 mm / ~1.4″
- Diameter: 20 mm / 0.8″
- Weight: 36 g / 1.3 oz
- Surface finish: matte gray
- Custom color: nickel, chromagreen