CCM – Eight

SCHOEPS Compact Microphone CCM 8

CCM
Manual

Pure pressure-gradient transducer

Figure-8 pattern with near-ideal consistency across the frequency range

Side-addressed (pickup perpendicular to the microphone body)

Optimal for use in M/S and Blumlein stereo recording

This capsule type is a true dipole (bidirectional) transducer, operating with a single diaphragm.

Its main axis is at a right angle to the capsule, and is marked at 0° and 180° with a red and a black dot respectively.

Application

The inherent qualities of a pure pressure-gradient transducer are readily observed in this capsule type:

Its sensitivity decreases at low frequencies.

The directional characteristic is extraordinarily independent of frequency.

Proximity effect is present.

The directivity index of a figure-8 pattern is the same as that of a cardioid; if microphones with these two patterns are placed at the same distance from a sound source, a quantitatively similar balance of direct and reverberant sound would be picked up.

In practice such a comparison would be deceptive, however, since a figure-8 does not respond to sound coming from the sides, from above or from beneath its main axis as does a cardioid.

The figure-8 has a rear lobe equal in sensitivity to its front lobe, and this exactly makes up the quantitative difference – but in normally reverberant settings, the sound reaching a figure-8’s rear lobe will be delayed and dispersed to a considerably greater extent than the reverberant sound energy which a cardioid picks up from its front and sides; the reflected sound will typically be subject to far more high frequency absorption as well. Thus the reverberant sound energy picked up by a figure-8, though theoretically equal in amount, is quite different in character from that which would be picked up by a cardioid in the same position.

The sound quality of the MK 8 is clear and neutral. The frequency response rolls off above
16 kHz.

Graphics
Frequency response and polar diagram MK 8 + CMC 6 and CCM 8
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 - 16 kHz
Sensitivity10 mV/Pa
Equivalent noise level (A-weighted)18 dB-A
Equivalent noise level (CCIR)26 dB
Signal-to-noise ratio (A-weighted)76 dB-A
Maximum sound pressure level at 0.5% THD134 dB-SPL