CMT 22
Common name: Schoeps CMT 22
Production Status: Discontinued / Vintage
The CMT 22 is a phantom powered small diaphragm transistor microphone first produced in 1964. It features a metal diaphragm capsule with an omnidirectional polar response exhibiting a gentle high frequency rise for diffuse-field pickup. It uses a radio-frequency circuit in which the capsule modulates a 3.7 mHz radio-frequency carrier to produce an output voltage and a transformer-less output stage with coupling capacitors. The microphone is insensitive to temperature up to + 70° Celsius, moisture, electric and magnetic fields. The CMT 20 series is powered by 8.5 V phantom power.
Electrical Characteristics
Frequency Response
40Hz - 16 kHz
Output Sensitivity
2.5 mV/Pa
Max SPL
123
Max SPL, THD:
0.5
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
20 dB-A
Output Impedance
200Ω
Recommended Load
0.25kΩ
Powering
Proprietary unit
Supply Current
6.5 mA
Alternative Powering
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
XLR-3M
Connector notes
Available Colours
Nickel
Weight
127 g
Length
152 mm
Min diameter width
Max diameter
20 mm
Depth
Accessories
Included
BZ03pU power supply
Optional
A 20 shock mount. W 20 windscreen