Adastra CBM Ceiling/Surface Boundary Microphone

The Adastra CBM Ceiling/Surface Boundary Microphone is a low profile ceiling or panel mounting boundary microphone with an omnidirectional pick-up pattern which is suitable for use where discreet audio surveillance is required. Applications range from audio pick-up in induction loop systems to audio monitoring and recording for CCTV systems.

Adastra CBM Ceiling/Surface Boundary Microphone Features

- Phantom powered (9-52Vdc)
- Threaded for up to 50mm through-hole mounting
- Omnidirectional pickup pattern

Adastra CBM Ceiling/Surface Boundary Microphone Specifications

- Power supply: 9-52Vdc phantom power
- Cutout: 20mmØ
- Connection: XLR male
- Frequency response: 50Hz-17kHz
- Max. input SPL: 140dB @ 1kHz (?1% THD)
- Sensitivity: -39dB ±3dB (0dB=1V/Pa at 1kHz)
- Impedance: 200 Ω ±30% (at 1 kHz)

Physical:
- Dimensions (W x H x D): 32 x 72 x 72 mm
- Weight: 0.076 kg