From Schoeps Microphones
The CMC 1 is our new, 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, “uncompromising miniaturization” 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 SCHOEPS 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 amplifer. 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
MK 41 Super Cardioid Capsule
The supercardioid has the greatest directivity of any first-order pressure gradient transducer. The response 90° off-axis is -10 dB. The polar diagram is consistent at all frequencies, which means that regardless of its direction of origin, sound will be picked up free of unwanted coloration. For this reason the supercardioid is the preferred type of microphone for dialog recording in film and video sound, particularly indoors.
From low to midrange frequencies, the directionality of a supercardioid is comparable to that of a “shotgun” microphone.
MK 41 Capsule
- Pickup pattern
- Supercardioid
- Frequency range
-
- 40 Hz - 26 kHz
- 40 Hz - 41 kHz with CMC 6xt
- Sensitivity
- -36 dB (V/Pa), 16 mV/Pa
Equivalent noise level (A-weighted) 14 dB
- Equivalent noise level (CCIR)
- 23 dB
- Signal-to-noise ratio (A-weighted)
- 80 dB
- Maximum sound pressure level (THD < 0.5 %)
-
- 131 dB-SPL with CMC 6
- 135 dB-SPL with CMC 1
- Length
- 22 mm
- Diameter
- 20 mm
- Weight
- 17 g
- Surface finish
- matte gray
CMC 1 L Amplifier
- Frequency range
- 20 Hz-20 kHz
- Sensitivity
- see corresponding capsule
- Maximum output voltage
- 1,8 V (5 dbV) with 1kΩ 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, 12dB/oct
- Output impedance
- 50 Ω +/- 1 Ω (8 Hz - 50 kHz)
- Minimum recommended load impedance
- 1 kΩ
- Common mode rejection ratio (at 1 kHz)
- > 55 dB
- Maximum cable length
- > 400 m / ~1300 ft
- SCHOEPS RFI Shield
- Yes
- Powering standard / Valid range
-
- P48 / 30-52 V
- P12 / 11-13 V
- Current consumption
-
- 2mA (P48)
- 3 mA (P12)
- Output
- Lemo, analog, 1 channel
- Length
- 25.5 mm / ~1 ''
- Diameter
- 20 mm / 0.8''
- Weight
- 28 g / ~1 oz
- Surface finish
- matte gray
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