UM 70

Common name: Microtech Gefell UM 70

Production Status: Discontinued / Vintage

The UM 70 is a dual PVC membrane, centre terminated, single brass backplate multi pattern switchable (Umschaltbar) capsule. Polar patterns can be switched between omnidirectional, cardioid and bidirectional (figure of eight) pickup responses. It is part of the SMS (Studio Microphone System) 70 series. It can be used with the MV 691 and MV 692 preamplifier bodies. It can also be used with the CMV 563 via a special adapter and with the M582 with a modification (to accept threaded capsule mounts). It was first produced in 1970 until about 1994. The Radio version of the UM 70 was called M 96.

Electrical Characteristics

Frequency Response
30Hz - 18 kHz
Output Sensitivity
5 mV/Pa
Max SPL
125
Max SPL, THD:
0.5
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
-
Recommended Load
Powering
Proprietary unit
Supply Current
mA
Alternative Powering

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
Connector notes
Screw Mount
Available Colours
Black/Silver (RFT). Bronze (MTG)
Weight
150 g
Length
87 mm
Min diameter width
Max diameter
42 mm
Depth

Accessories

Included
Capsule Box
Optional