Ring 72-120 AC Pro 72 channel system for various measurement scenarios

• Aluminium array-body diameter: 120 cm
• Weight: 4 kg
• Number of microphones: 72
• Frequency response of microphones: 20 Hz-20 kHz (± 3 dB)
• Dynamic range of microphones: 28-130 dB (A-weighted)
• Acoustic maps from 23-130 dB
• Max. equivalent sound level: 130 dB
• Symmetrical output resistance: 100 Ω
• Recommended measurement distance: 1.5-20 m
• Recommended mapping frequencies: 200 Hz-20 kHz
• Single map dynamic: 9-12 dB (CBF) using HDR 20-40 dB
• Connecting Array Cable length to data recorder: 1-20 m
• Video camera: USB or Ethernet connector; different frame rates and resolutions available
• Ingress protection code: IP20
• Operating environment: 0°-45°C, up to 80% r.h.