Školski zvučni sistem
Više informacija »The boundary microphones BCM201W and BCM201B are components of the School Sound System.
The School Sound System - a full audio over IP-based classroom solution
including teaching, paging, messaging, class change & scheduling,
hands-free intercom & emergency communication, providing a safe and secure
environment for students and staff. The system incorporates Terra-SAP amp
processor, a range of IP loudspeakers and BCM201W/BCM201B boundary microphone
which can be used for both intercom and classroom speech monitoring
applications.
Electrical
Audio Characteristics
Frequency response: 50 ~ 18 kHz
Capsule sensitivity: -42 (±3) dBu @ 1 kHz (0 dBu=1VPa)
Dynamic range: 113 dB
Maximum SPL: 128 dBA @ 30 cm
SNR: 58 dB(A)
Output impedance: 130 ohm
Mic Characteristics
Capsule type: Electret condenser
Capsule directivity: Omnidirectional
Mechanical
Diameter: 20 mm
Length: 100 mm
Mic shield cover diameter: 75 mm
Mic cable length: 300 mm
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