BM-110

Relacart BM-110 - omnidirectional condenser boundary microphone for flush mounting in a table top or ceiling

A microphone you barely see that hears the whole room. The Relacart BM-110 is a condenser boundary microphone designed for permanent flush mounting in a table top or ceiling, including suspended ceilings. Its omnidirectional, half-spherical pickup pattern and high sensitivity capture sound even from a distance, making it particularly well suited to large rooms. It is designed for AV integrators equipping conference rooms, teleconferencing and video conferencing systems, recording studios and round-table discussion spaces, where the microphone must perform reliably without spoiling the look of the interior.

Installation requires only a 20mm hole, and the microphone can be mounted in surfaces up to 57mm thick. An elastic bearing ring isolates the microphone from surface vibration and mechanical noise, while effective RF shielding reduces interference from mobile phones and other wireless devices. The rugged die-cast alloy housing is built for permanent installation. The microphone is phantom powered (12-52V DC) and features a built-in XLR connector with a low-impedance balanced output.

Features

• Back-electret condenser capsule
• Omnidirectional (half-spherical) polar pattern
• Frequency response 80Hz-18kHz
• Sensitivity 18mV/Pa (-34.4dBV)
• Output impedance below 200Ω
• Max SPL 106dB (1% THD)
• Signal-to-noise ratio 68dB (1kHz, 1Pa)
• Noise voltage 6.0µV (A-weighted)
• Phantom power 12-52V DC, current consumption 4mA typical
• Built-in male 3-pin XLR connector, low-impedance balanced output
• Mounting hole Ø20mm (Ø24mm with elastic bearing ring)
• Maximum table top or ceiling thickness 57mm
• Mounting in a table top, fixed or suspended ceiling, secured with a nut

Benefits

• Discreet appearance thanks to flush mounting
• Wide room coverage with omnidirectional pattern and high sensitivity
• Immunity to RF interference from mobile phones and wireless devices
• Isolation from vibration and mechanical noise with elastic bearing rings
• Rugged die-cast alloy housing for permanent installations
• Length 74mm
• Diameter 20mm (tube), 39.5mm (capsule ring)
• Weight approx. 95g (incl. nut and ring)

Relacart BM-110 is a practical choice for rooms where a microphone needs to cover many participants while remaining almost invisible. Its omnidirectional pattern, flush mounting, RF shielding and vibration isolation deliver clean, stable sound for teleconferences, video conferences, meetings, recordings and discussions.