Miniature Omnidirectional Condenser Boundary Microphone with TB3-to-XLR Output

ES945O/TB3

Overview

ES945O/TB3

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.

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.

See below for the entire family of ES945O and ES947C boundary microphones:

ES945O/XLR
Water-resistant Omnidirectional Condenser Boundary Microphone with XLR Output

ES947C/XLR
Water-resistant Cardioid Condenser Boundary Microphone with XLR Output

ES945O/TB3
Miniature Omnidirectional Condenser Boundary Microphone with TB3-to-XLR Output

ES947C/TB3
Miniature Cardioid Condenser Boundary Microphone with TB3-to-XLR Output

ES945O/FM3
Omnidirectional Condenser Boundary Microphone with 3-Pin XLR Output and Local Muting

ES947C/FM3
Cardioid Condenser Boundary Microphone with 3-Pin XLR Output and Local Muting

ES945O /FM5
Omnidirectional Condenser Boundary Microphone with 5-Pin XLR Output and Remote Muting

ES947C/FM5
Cardioid Condenser Boundary Microphone with 5-Pin XLR Output and Remote Muting

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)
Available in two colors: black (ES945O/TB3) and white (ES945WO/TB3)
RoHS compliant—free from all substances specified in the EU directive on hazardous substances

Specifications

Microphone
Element	Fixed-charge back plate, permanently polarized condenser
Polar Pattern	Omnidirectional
Frequency Response	60-15,000 Hz
Open Circuit Sensitivity	-33 dB (0 dB = 1V/Pa, 1 kHz)
Output Impedance	100 ohms
Maximum Input Sound Level	131 dB SPL (1 kHz at 1% THD)
Dynamic Range	109 dB (1 kHz at max SPL)
Signal-to-Noise Ratio	73 dB (1 kHz at 1 Pa, A-weighted)
Phantom Power Requirements	11-52V DC, 2 mA
Weight	31 g (1.1 oz)
Dimensions	60.5 mm (2.38") long, 20.0 mm (0.79") head diameter
Output Connector	TB3M-type
Accessories Included	Rubber isolator (x 2), nut, 7.6 m (24.9') microphone cable (TA3F to XLRM)

Downloads

ES945O/TB3 User Manual

ES945O/TB3 Quick Start Guide

ES945O/TB3 CAD Drawing