CAD Audio 651 Small Format Omnidirectional Dynamic Palmheld Microphone with Talk Switch

The Astatic 651 is a small-format squeeze-to-talk, dynamic microphone for critical communications applications. The 651 has a tailored frequency response providing clear transmission and maximum intelligibility of speech. The housing is built to wIt'stand rough mechanical impact while the transducer resists atmospheric extremes. The 651 has a simple to operate DPDT long-life, trouble-free, leaf switch. It has a low-impedance output and is factory wired normally open. The 651 may be rewired in the field if a line shorting function is desired. The Astatic 651 is an excellent choice for any application requiring a small-format palmheld microphone for discrete or tight-mounting spaces such as life-safety systems or paging stations where small size is required. The 651 is also suited to most public address and general, multiple-use, commercial paging applications such as factories, airports, lobbies, restaurants, warehouses, etc.

Key Features

• For commercial public-address and paging applications as well as security, emergency and life safety
• Small size for inclusion into life-safety systems or other paging stations where small size is indicated
• Omnidirectional for forgiving pick-up of users that may not be committed to the mic

Technical Specifications

Operating Principle
Moving Coil Dynamic
Polar Pattern
Omnidirectional
Frequency Response
500Hz - 8KHz
Sensitivity
-49dBV (3.6mV) @ 1Pa
Impedance
600 ohms
Cable
6ft (1.8m) extended, four-conductor, two-conductor shielded, coiled
Switch
DPDT momentary leaf
Case
Impact-resistant plastic
Dimensions
See spec sheet (pdf)
Net Weight
4.9oz <139g>
Packaged Weight
8.0oz <227g>
RF Immunity
Meets or exceeds EN55103-2, E1, E2, E3 and E4.
RoHS Compliant