720B

Common name: Shure 720B

Production Status: Discontinued / Vintage

The 720B is a versatile multi-pattern crystal microphone designed for broadcast, recording and public address applications. It features a tilting head specially tested and laboratory adjusted moisture-proofed Grafoil Bimorph crystals. The unidirectional pattern provides wide-angle front-side pickup, with a 20 db discrimination against sound approaching from the rear. Reduces reverberation energy pickup 66%. Eliminates feedback. audience and background noise. The bidirectional has Typical “velocity” characteristic. Permits pickup from front and back while dead sides discriminate against unwanted sounds. The omnidirectional provides 360-degree all around pickup for group presentations, outdoor work and all applications for which a conventional-type crystal microphone would be used. The 720B has a built-in cable connector and 25 ft. of super-shielded cable with locking-plug attached. 518″-27 thread for stand mounting.

Electrical Characteristics

Frequency Response
30Hz - 10 kHz
Output Sensitivity
1.35/1.99 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
-
Recommended Load
Powering
Supply Current
mA
Alternative Powering

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
Amphenol MC3F
Connector notes
Available Colours
Satin chrome.
Weight
1247 g
Length
193.7 mm
Min diameter width
Max diameter
69.8 mm
Depth

Accessories

Included
25 ft. super-shielded cable
Optional