audio-technica Omnidirectional Condenser Boundary Microphone User Manual

ES945O/FM5Omnidirectional Condenser Boundary MicrophoneUser Manual

Safety precautions

Although this product was designed to be used safely, failing to use it correctly may result in an accident. To ensure safety, observe all warnings and cautions while using the product.

Cautions for the product

  • Do not subject the product to strong impact to avoid malfunction.
  • Do not disassemble, modify or attempt to repair the product.
  • Do not handle the product with wet hands to avoid electric shock or injury.
  • Do not store the product under direct sunlight, near heating devices or in a hot, humid or dusty place.

Notes on use

  • Do not swing or pull with the cable connected to the microphone to prevent the microphone from becoming disconnected or damaged.
  • Do not wind the cable around the rack or allow the cable to become pinched.
  • The microphone should be placed on a flat, unobstructed mounting surface.
  • Placing any object on a surface (such as a conference table) before its finish is fully cured may result in damage to the finish.

Using the product

Included accessories

  1. Rubber isolator (1)
  2. Rubber isolator (2)
  3. Nut

How to mount the product

Table/ceiling hole size (when using isolators)

(Unit: mm)

Table/ceiling hole size (when not using isolators)

(Unit: mm)

Example: Mounting on a table

  1.  Rubber isolator (1)
  2. Rubber isolator (2)
  3. Nut
  4. Table

Switch setting and functions

LED color

1 2






5 6





Connection procedureThe output connector is an XLR-M type with polarity as shown in the figure below.

  1. PIN1 (ground)
  2. PIN2 (hot)
  3. PIN3 (cold)
  4. Contact closure
  5. LED control



Element Fixed-charge back plate, permanently polarized condenser
Polar pattern Omnidirectional
Frequency response 60 to 15,000 Hz
Open circuit sensitivity -33 dB (0 dB = 1 V/Pa, 1 kHz)
Impedance 60 ohms
Maximum input sound level 130 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 11-52 V DC, 6.8 mA
Weight 59 g (2.1 oz)
Dimensions 38 mm (1.50”) × 48 mm (1.89”) × 84.8 mm (3.34”) (W × D × H)
Output connector Integral 5-pin XLR-M type
Included accessories Rubber isolator (2 types), Nut
  • 1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
  • For product improvement, the product is subject to modification without notice.

Polar pattern/Frequency response

Polar pattern

Frequency response

Audio-Technica Corporation2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan©2021 Audio-Technica Corporation Global Support Contact:

142316943-02-01ver.1 2021.02.01

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