CCM – Open Cardioid

SCHOEPS Compact Microphone CCM 22

Manual

New kind of directional pattern: “Open Cardioid”

Optimal combination of classic cardioid directionality (MK 4) with the sonic character of the wide cardioid (MK 21)

Directional pattern largely constant throughout the frequency range

Often preferred for spot miking and as a soloist’s microphone

The CCM 22 has been developed for use as a spot microphone.

It unites the strengths of the CCM 4 and CCM 21 microphones. Its directionality is only slightly less than that of the CCM 4 cardioid, while its sonic character is reminiscent of the CCM 21 wide cardioid. Its directivity is essentially constant throughout the frequency range.

Its inherent low-frequency response is somewhat more pronounced than that of the cardioid, while proximity effect is somewhat less.

Application

The years of experience which many recording engineers have had with the various types of SCHOEPS cardioid microphones have played a large role in the design process. The CCM 4 cardioid is often relied upon as a reference microphone, even in difficult recording situations; its sonic transparency and outstanding suppression of rear-incident sound make it a universal problem-solver.

The CCM 21 wide cardioid offers an alternative when its lower directivity fits the recording situation, e.g. for the first desk of strings or for solo piano. This microphone type is prized for its sonic character (similar to that of a pure omnidirectional microphone) and its relative lack of proximity effect. Then the wish arose for a “middle way” which would combine these characteristics into a single capsule. The result is the CCM 22 Open Cardioid.

Open Cardioid
The “Open Cardioid” directional pattern, occupying a point on the spectrum between the wide cardioid and classic cardioid patterns, was developed by SCHOEPS in 2008.

The response is -5 dB at 90° and there is 16 dB suppression of rear-incident sound.

It is in essence a variant cardioid which balances a very natural sound quality with a good degree of directionality.

The CCM 22 / the MK 22 is winner of the 2009 award in the category
Graphics

Top: frequency response and polar diagram MK 22 + CMC 6 and CCM 22
Bottom: frequency response MK 22H + CMC 6 xt
Technical Details 
Current consumption with 12 V8 mA
Current consumption with 48 V4 mA
Impedance90 Ω
Minimum recommended load impedance600 Ω
Low-cut frequency20 Hz
Length (L version)without connector: 46 - 58 mm
Length (U version)46 - 58 mm
Diameter20 mm
Weight (U-version)33 g
Weight (L-version)43 g
Surface finishmatte gray
Frequency range40 Hz - 20 kHz
Sensitivity14 mV/Pa
Equivalent noise level (A-weighted)14 dB-A
Equivalent noise level (CCIR)23 dB
Signal-to-noise ratio (A-weighted)80 dB-A
Maximum sound pressure level at 0.5% THD130 dB-SPL