The Adastra CBM20 is a sleek, omnidirectional boundary microphone designed for professional PA and conferencing installations. Featuring a durable metal housing with a white cover, the Adastra CBM20
operates on 9–48 V phantom power and delivers a wide 30 Hz–17 kHz frequency response. With low sensitivity (2.3 mV/Pa) and a max SPL of 110 dB, it excels at capturing clear, room-wide audio from ceilings, tables, or surfaces without visual intrusion.
Conference & council rooms – flush-mounted in tables or desks for clear speech pickup.
Public address systems – for subtle ambient audio capture, such as induction-loop setups.
Security & monitoring systems – blending into ceilings for CCTV surveillance audio capture.
Discreet integration: Sleek low-profile body perfect for ceiling or table installation.
Robust audio pickup: Designed for speech clarity and ambient PA applications.
Flexible power range: Compatible with most phantom power systems.
Ideal for surveillance setups: Commonly used alongside CCTV or monitoring systems for transparent audio coverage.
