CM-300
Common name: Nakamichi CM-300
Production Status: Discontinued / Vintage
The CM-300 is a battery powered condenser microphone preamplifier. It is equipped with an on/off switch and a switchable – 10 dB attenuation pad. The CM-300 comes furnished with the small diaphragm CP-1 cardioid and CP-2 omnidirectional pre-polarised capsules. Specifications shown are for the CM-300 with the CP-1 cardioid capsule. Frequency response with the omnidirectional capsule is 20 Hz – 16 kHz, +/- 3 dB. The microphone is powered by a Mallory H 7D/A 9.1 V or an Eveready 126 8.4 V. Includes XLR-3 to 6.3 mm TRS jack, battery, stand adapter, windscreen and foam padded case.
Electrical Characteristics
Frequency Response
30Hz - 18 kHz
Output Sensitivity
1.58 mV/Pa
Max SPL
138
Max SPL, THD:
3
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
200Ω
Recommended Load
1kΩ
Powering
Internal battery
Supply Current
1 mA
Alternative Powering
Switchable Options
Pad
- 10 dB
Filter/EQ
100 Hz 10 dB/octave
Physical Characteristics
Connector
XLR-3M
Connector notes
Available Colours
Black.
Weight
170 g
Length
200 mm
Min diameter width
19 mm
Max diameter
21 mm
Depth
Accessories
Included
XLR-3 to 6.3 mm TRS jack, battery, stand adapter, windscreen, foam padded case.
Optional
CP-4 shotgun and CP-3 super-omnidirectional capsules.