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audio Cardioid Condenser Boundary Microphone ES947C XLR, ES947WC XLRManual

audio Cardioid Condenser Boundary Microphone ES947C XLR, ES947WC XLRManual Image

audio Cardioid Condenser Boundary Microphone User 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.

About splash-proof performance

  • The splash-proof specification of this product applies only to the head of the microphone.
  •  Although the product has splash-proof capabilities equivalent to IPX4, the screw part and the connector part of the product are not splash-proof.
  • If the product is not installed properly, the splash-proof effect will not function properly. Firmly attach the product to the ceiling/table using the included rubber isolators.
  •  The splash-proof performance is designed to protect the product if it gets wet  from rain, etc. (equivalent to IPX4). JIS/IEC protection grade IPX4 means that the product is protected against exposure to flying water from all directions.
  •  The product cannot be used underwater
  •  The product cannot be used in hot and humid places, such as bathrooms.
  •  The product is not waterproof. Putting a large amount of water on the  product or submerging the product in water may cause damage.
  • The product may not function properly if it becomes wet. Wipe the surface of the product with a dry cloth to remove any moisture, and allow the product to dry thoroughly before use.

Using the product

Included accessories

  1. Rubber isolators
  2. Nut

How to mount the product

  1. Table/ceiling hole size (when using isolators)

    (Unit: mm)
  2. Table/ceiling hole size (when not using isolators)

    (Unit: mm)

Example: Mounting on a table

  1. Front-of-mic indicator
  2.  Rubber isolators
  3.  Nut
  4.  Table

Connection procedure

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

  1. PIN1 (ground)
  2.  PIN2 (hot)
  3.  PIN3 (cold)



Element Fixed-charge back plate, permanently polarized condenser
Polar pattern Cardioid
Frequency response 70 to 8,500 Hz
Open circuit sensitivity -37 dB (0 dB = 1 V/Pa, 1 kHz)
Impedance 100 ohms
Maximum input sound level 134 dB SPL (1 kHz at 1% THD)
Dynamic range 110 dB (1 kHz at Max SPL)
Signal-to-noise ratio 70 dB (1 kHz at 1 Pa, A-weighted)
Phantom power requirements 11-52 V DC, 2 mA
Weight 62 g (2.2 oz)
Dimensions 26 mm (1.02″) x 30 mm (1.18″) x 69 mm (2.72″) (W x D x H)
Output connector Integral 3-pin XLR-M type
Included accessories Rubber isolator x 2, 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


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2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
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