Audio-Technica ES947C/FM3 Cardioid Condenser Boundary Microphone Overview:

This phantom-powered cardioid condenser boundary microphone features a 3-pin XLR output connector with a capacitive touch switch that enables local muting of the microphone.

Designed for clear, highly intelligible conferencing, recording, monitoring and other demanding sound pickup applications, the ES947C/FM3 mounts unobtrusively in tabletops or panels, but includes a highly visible two-state RGB LED ring (7 selectable colors + OFF) to indicate mute status.

The microphone’s cardioid polar pattern provides a 120° pickup angle. A rugged all-metal case with a two-layer steel mesh grille protects the microphone element, while our UniGuard RFI-shielding technology provides outstanding rejection of radio frequency interference (RFI).

The ES947C/FM3 is equipped with a self-contained power module, eliminating the need for an external one, and comes with a pair of rubber isolators for optional mechanical isolation from the mounting surface.

Features:

• Designed for surface-mount applications such as conferencing, recording, monitoring and other demanding sound pickup applications
  
• Capacitive touch switch enables local muting of the microphone
  
• Highly visible two-state RGB LED ring (7 selectable colors + OFF) indicates mute status
  
• Low-profile element provides uniform cardioid polar pattern with 120° acceptance angle
  
• Mounts unobtrusively in tabletops and panels
  
• Self-contained power module with 3-pin XLR output connector
  
• Rugged all-metal case with a two-layer steel mesh grille
  
• Rubber Isolators provide mechanical dampening of mounting-surface vibration
  
• Requires 11V to 52V DC phantom power
  
• UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  
• RoHS compliant—free from all substances specified in the EU directive on hazardous substances

Specifications:

• Element: Fixed-charge back plate, permanently polarized condenser
  
• Polar Pattern: Cardioid
  
• Frequency Response: 70-15,000 Hz
  
• Open Circuit Sensitivity: -37 dB (0 dB = 1V/Pa, 1 kHz)
  
• Output Impedance: 60 ohms
  
• Maximum Input Sound Level: 134 dB SPL (1 kHz at 1% THD)
  
• Dynamic Range: (typical) 110 dB (1 kHz at max SPL)
  
• Signal-to-Noise Ratio: 70 dB (1 kHz at 1 Pa, A-weighted)
  
• Phantom Power Requirements: 11-52V DC, 7.5 mA
  
• Weight: 59 g (2.1 oz)
  
• Dimensions: 38.0 mm (1.50") W x 48.0 mm (1.89") D x 84.8 mm (3.34") H
  
• Output Connector: 3-pin XLRM-type
  
• Accessories Included: Rubber isolators (two types), nut