Schoeps CCM 22

Open Cardioid Compact Microphone Capsule

Description

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.

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 of a cardioid that balances a very natural sound quality with a good degree of directionality.

PROPERTIES

  • new kind of directional pattern: Open Cardioid
  • optimal combination of classic cardioid directionality (CCM 4) with the sonic character of the wide cardioid (CCM 21)
  • directional pattern largely constant throughout the frequency range
  • often preferred for spot miking and as a soloist’s microphone

PRACTICE

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.

VARIANTS & OPTIONS

  • No. 191701 “Matching of microphone capsules including certificate”: Although our normal production tolerances are very close, we can deliver specially matched compact microphone pairs.
  • Each CCM microphone is available as a standard version “L” with a Lemo plug and as a version “U” with a permanently attached 5 m cable and XLR-3M connector.

TECHNICAL SPECIFICATIONS

Frequency rangesee the corresponding capsule
Sensitivitysee the corresponding capsule
Maximum sound pressure level (THD < 0.5 %)135 dB-SPL (P48)
127 dB-SPL (P12)
Maximum output voltage2,6 V (8,3 dbV) with 2 kΩ load
Low cut filter20 Hz, 12 dB/Okt.
Output impedance90 Ω @ 1 kHz
Maximum cable length> 400 m
SCHOEPS RFI ShieldNo
Powering standard / Valid rangeP48 / > 40 V
P12 / > 10 V
Current consumption4 mA (P48)
3,6 mA (P12)
Common mode rejection ratio (at 1 kHz)> 55 dB
Minimum recommended load impedance2 kΩ
OutputLemo (CCM-L) or XLR-3M (CCM-U),
analog, 1 channel
Length46 mm (CCM-L)
Diameter20 mm
Weight45 g (CCM-L)
Surface finishmatte gray (g)
or custom color

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