KM 64 P

Common name: Neumann KM 64 P

Production Status: Discontinued / Vintage

The KM 64 P is a special version of the SRM 64 (long neck stage version of the KM 64) manufactured from 1965 to 1968. It features a shorter swivel-mounted coupling tube compared to the SRM 64. The microphone amplifier is horizontally located in the table stand.
KM is the acronym for “kleinmikrophon” meaning “little microphone”. The original KM family ( KM 53 – KM 54 – KM 56) was born in the 50’s as a result of the professional market request for high quality, but very small, microphones, ideal for TV productions. After ten years Georg Neumann GmbH launched a new KM tube series. The same Telefunken AC 701 k tube was used to design the new pre-amplifier and the new 21 mm capsules employed MCF made diaphragms. The new series was compatible with most of the old KM 5x series accessories, as cables, holders and PSU’s. The tube cathode coupling derived coming from the last “c” version yields lower noise figures. The KM 64 was designed to replace the KM 54 as miniature pressure condenser microphone for professional purposes. The new KM 64 design improves frequency response for off-axis sounds having virtually the same tonality for +- 135° (100 Hz – 18 kHz) sound sources.

Electrical Characteristics

Frequency Response
40Hz - 18 kHz
Output Sensitivity
0.9 mV/Pa
Max SPL
120
Max SPL, THD:
0.5
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
50 or 200Ω
Recommended Load
Powering
Proprietary unit
Supply Current
mA
Alternative Powering
Tube Model
Telefunken AC 701

Switchable Options

Pad
10 dB
Filter/EQ

Physical Characteristics

Connector
Tuchel 3402
Connector notes
Available Colours
Matte satin chrome
Weight
Length
Min diameter width
Max diameter
Depth

Accessories

Included
Optional
NKM a power supply. KC 1 microphone cable. KC 2 microphone cable with swivel mount. BB 12 battery operated power supply. BB 50 battery operated power supply.