The JBL Commercial CSPM series microphones are dynamic close-talking microphones for paging systems in bars/pubs, theatre lobbies, department store and more.
A single cable attached to the CSPM-4 contains three conductors for audio (Positive, Negative, Shield) and five conductors for contact closure (Zone 1, Zone 2, Zone 3, Zone 4, Ground). Selecting a zone and pressing and holding the PTT button will route the microphone audio to that zone.
1 PTT Button
4 Zone Selection Buttons
Ideal for Paging to 4 Zones
Ideal for Use with Two Linked CSM-32 Devices
Capsule - Dynamic
Frequency Response - 150 Hz - 15 kHz
Sensitivity - Typical 2.2 mV / Pa (-54 dBV)
Equivalent Noise Level - 21 dB-A
Polar Pattern - Directional - Cardioid
Max. SPL - 133 dB (SPL), K=1%
Impedance - 530 ohms
Protection - Wind and Pop-Protection; Internal foam