Audio-Technica ES945O/TB3 Miniature Omni Boundary Microphone

Audio-Technica has taken its low-profile ES945O omnidirectional boundary microphone and given it an even smaller footprint, making it a great choice for installations with limited space or where a very clean, inconspicuous look is desired. The miniature ES945O/TB3 still gives you the same clear, highly intelligible audio of its larger sibling, mounting unobtrusively in tabletops, ceiling or panels for conferencing, recording, monitoring and other demanding sound pickup applications. This microphone is available in black or white.

Protected by a rugged all-metal case with a two-layer steel mesh grille, the microphone’s omnidirectional polar pattern affords a 360° pickup angle, while its UniGuard® RFI-shielding technology provides outstanding rejection of radio frequency interference (RFI).

The ES945O/TB3 is equipped with a self-contained power module with a TB3M (mini-XLR) output connector, eliminating the need for an external power module. It also comes with a TA3F-to-XLR cable, allowing for installation with standard XLR inputs. The microphone is available in black (ES945O/TB3) and white (ES945WO/TB3), and comes with a pair of rubber isolators for optional mechanical isolation from the mounting surface.

Audio-Technica ES945O/TB3 Features

• Designed for surface-mount applications such as conferencing, recording, monitoring and other demanding sound pickup applications
• Low-profile element provides uniform omnidirectional polar pattern with 360° acceptance angle
• Miniature, space-saving design enables highly inconspicuous tabletop, ceiling and wall mounting
• Self-contained power module with TB3M (mini-XLR) output connector
• Includes a TA3F-to-XLR cable for use with standard XLR inputs
• 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

• ES945O/TB3 Miniature Omni Boundary Microphone1
• Rubber isolators2
• Nut1
• 7.6 m (24.9') microphone cable (TA3F to XLRM)1

• Transducer TypeCondenser
• Polar PatternOmnidirectional
• Frequency Response60 Hz - 15 kHz
• Output Impedance100 ohms
• ensitivity-33 dBV/Pa
• Maximum Input Sound Level131 dB SPL (1 kHz at 1% THD)
• Dynamic Range109 dB (1 kHz at max SPL)
• Signal-to-Noise Ratio73 dB (1 kHz at 1 Pa, A-weighted)
• Phantom Power Requirements11-52V DC, 2 mA
• Weight31 g (1.1 oz)
• Dimensions60.5 mm (2.38") long, 20.0 mm (0.79") head diameter
• ConnectorTB3M