Common name: Funkwerk Leipzig CM7156
Production Status: Discontinued / Vintage
The CM7156 is a multi-pattern vacuum tube condenser microphone switchable between omnidirectional and cardioid pickup patterns produced between 1956 and 1961. The capsule features a medium 22 mm PVC diaphragm similar to the classic M7. The circuit is based around an AC761 and EC92 vacuum tubes powered by an StV 8556 power supply unit. Its frequency response ranges from 40 Hz to 20 kHz and has a 200 Ohm output impedance. Includes power supply, microphone cable and microphone case.