655A

Primary use:

Type:

Polar patterns:

Common name: Electro-Voice 655A

Production Status: Discontinued / Vintage

The 655-A is a high-fidelity omnidirectional dynamic microphone specifically designed for TV and radio broadcast applications. It is very compact with a diameter of just 1 inch and a length of 10 inches. The microphone is made from lathe-turned aluminium and finished in Alumilite. It is optionally available in Black Alumilite finish with satin chrome trim. The 655 model has an attractive, streamlined fluted aluminium grille and the 655-A has an acoustically treated wire mesh grille that acts as a pop, wind and breath filter. The 655 can be mounted on a stand via a microphone clip or with a swivelling holder. The capsule uses the exclusive Acoustalloy diaphragm modified for optimum elasticity. The non metallic Acoustalloy diaphragm provides a smooth response over a wide frequency range while being immune to high humidity, corrosion and mechanical shocks. The capsule assembly employs Alnico V and Armco magnets in a non-welded circuit to develop 15.000 gauss, comparable to that available in microphone four time the size of the 655A. It has an impedance of 250 ohm that can be changed to 50 ohm if needed. Includes swivel stand mount and 20 feet two-conductor shielded cable.

Electrical Characteristics

Frequency Response
40Hz - 14 kHz
Output Sensitivity
2.23 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
250Ω
Recommended Load
Powering
Supply Current
mA
Alternative Powering

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
XLR-3M
Connector notes
Available Colours
Black Alumilite
Weight
311.8 g
Length
234.9 mm
Min diameter width
4.74 mm
Max diameter
30.1 mm
Depth
28.5mm

Accessories

Included
Swivel stand mount and 20 feet two-conductor shielded cable
Optional
Also available as the 655 model with an attractive, streamlined fluted aluminium grille