331

Primary use:

Type:

Polar patterns:

Common name: Astatic 331 "The Citizen"

Production Status: Discontinued / Vintage

The 331 is a ceramic microphone for communications, paging and ham radio applications. It is equipped with a momentary-on spring-return switch. The microphone has a die cast black housing and grille with chrome cap.

Electrical Characteristics

Frequency Response
300Hz - 5 kHz
Output Sensitivity
12.5 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
-
Recommended Load
100000kΩ
Powering
Supply Current
mA
Alternative Powering

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
Switchcraft 2501MP
Connector notes
Available Colours
Black.
Weight
340 g
Length
107.95 mm
Min diameter width
Max diameter
31.75 mm
Depth

Accessories

Included
Includes mounting bracket.
Optional