The CMC microphone (Colette modular microphone system) amplifiers are not amplifiers in the classical sense. Their chief task is to convert the extremely high-impedance signal from the capsule to a very low-impedance one suitable for transmission through a microphone cable. The versions differ in their powering, connectors, output levels and surface finishes, but they all feature a class-A output stage which has neither coupling condensers nor an output transformer. This leads to low source impedance (insensitivity to electrical interference), low distortion, and light weight.

The MK4 is part of the Colette series of modular capsules designed for use with the CMC preamplifiers. The cardioid polar pattern results in maximum rejection of rear incidental audio signal, eliminating off-axis noise and feedback. The cardioid pattern allows microphone placement to occur farther from the sound source than a pressure transducer of equivalent sensitivity. The MK4 is ideal for both speech and music capturing, resulting in rich detail without coloration. The MK4 is also a viable solution for X/Y or Mid-Side stereo recording.

CMC Features :

• With balanced, very low-impedance output
• For use also with long cables (several hundred meters)
• Can be used with active accessories for miniaturization and special applications
• Included accessory with every CMC microphone amplifier: polished wood case for two microphones

MK4 Features :

• Cardioid
• Frequency range: 40Hz - 20kHz
• Sensitivity: 13 mV/Pa
• Equivalent noise level (A-weighted): 15dB-A
• Equivalent noise level (CCIR): 24dB
• Signal-to-noise ratio (A-weighted): 79dB-A
• Maximum sound pressure level at 0.5% THD: 132dB-SPL