Cardioid Condenser Boundary Microphone

$299 + shipping (includes gst)

Colour :

This low-profile cardioid condenser boundary microphone is recommended for unobtrusive table-, ceiling-, or panel-mount applications in high-quality sound reinforcement, professional recording and teleconferencing. Designed for permanent installation, the microphone is equipped with a self-contained power module with an XLRM-type output connector, eliminating the need for an external power module. Protected by a rugged all-metal case with a two-layer steel mesh grille, the microphone has a cardioid pattern for enhanced gain before feedback and improved signal-to-noise ratio. It is available in two colors: black (ES947) and white (ES947W).

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording and teleconferencing
  • Low-profile element provides uniform cardioid polar pattern with 120º acceptance angle
  • Mounts unobtrusively in table-tops, ceilings and wall panels
  • Self-contained power module with XLRM-type output connector
  • Rugged all-metal case with a two-layer steel mesh grille
  • 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 (ES947) and white (ES947W)
  • RoHS compliant

Fixed-charge back plate, permanently polarized condenser

Polar Pattern

Half-cardioid (Cardioid in hemisphere above mounting surface)

Frequency Response

40-12,000 Hz

Open Circuit Sensitivity

-42 dB (7.9 mV) re 1V at 1 Pa


200 ohms

Maximum Input Sound Level

142 dB SPL, 1 kHz at 1% T.H.D.

Dynamic Range

113 dB, 1 kHz at Max SPL

Signal to Noise Ratio

65 dB, 1 kHz at 1 Pa

Phantom Power Requirements

11-52V DC, 2 mA typical


64 g (2.3 oz)


69.0 mm (2.72″) long, 30.0 mm (1.18″) diameter

Output Connector

Integral 3-pin XLRM-type

Polar Pattern
Frequency Response
ES947/W Spec Sheet (PDF) Download
ES947/W Submittal Sheet (PDF) Download

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