RA-1

Primary use:

Type:

Polar patterns:

Common name: Amperite RA-1

Production Status: Discontinued / Vintage

The RA-1 is a bidirectional ribbon microphone especially designed for public address applications. The microphone employs Cobalt steel magnets for extremely long life and an Aluminium alloy ribbon element resistant to stretching and not affected by temperature, pressure or humidity and a Silicon Steel coupling transformer. The bronze and steel case provides optimal shielding.

Electrical Characteristics

Frequency Response
60Hz - 10 kHz
Output Sensitivity
0.31 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
50/200Ω
Recommended Load
Powering
Supply Current
mA
Alternative Powering

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
4-pin
Connector notes
Available Colours
Weight
1814 g
Length
Min diameter width
Max diameter
Depth

Accessories

Included
Optional