Audix M55 Adjustable Condenser Hanging Ceiling Microphone

The M55 hanging ceiling microphone system is designed for applications where aesthetics, sound quality, and ease of installation are critical. The primary applications for the ceiling-mounted M55 include Video & Teleconference (VTC), distance learning, hospital rooms, surveillance, and ambient room miking.

The M55 conferencing microphone accommodates interchangeable capsules with cardioid, hypercardioid, omnidirectional, and supercardioid (shotgun) coverage patterns. All electronics are fully integrated with high sensitivity and low noise. The signal output is balanced to eliminate RF interference caused by cell phones and mobile devices.

Installing the M55 hanging microphone requires drilling just one 5/8-inch hole in the ceiling, with no additional tools needed. The M55’s mounting hardware easily adjusts the hanging height up to four feet from the ceiling surface without removing ceiling tiles. An optional aiming clip (MCHANGER) easily makes any additional angular adjustments. The cable assembly, with a terminal block connector, is neatly housed in an airtight, plenum-rated junction box. A wire safety cable provides additional seismic restraint.

M55 Models

• M55W: cardioid capsule
• M55WHC: hypercardioid capsule
• M55WO: omnidirectional capsule
• M55WS: shotgun capsule

Audix M55 Features

• High output allows distance miking
• Optimized for voice recognition
• Immunity from RF interference
• Fingertip height adjustment and rotation control
• Low noise preamp circuitry
• Ideal for video teleconferencing, distance learning, board rooms, ambient room miking, and more
• 3 Year Warranty

• M55 adjustable condenser hanging ceiling microphone1
• CONN170F 1 foot integrated mic cable with terminal block connector1
• CONN170M mating terminal connector1
• JBM55 metal plenum junction box with seismic and fire safety cable restraint1

• Transducer TypeCondenser
• Polar PatternsCardioid (M55W), Hypercardioid (M55WHC), Omnidirectional (M55WO), Shotgun (M55WS)
• Frequency Response60 Hz - 10 kHz
• Output Impedance150 Ω
• Sensitivity
  • M55W: 38mV Pa @ 1k
  • M55WHC: 32 mV Pa @ 1k
  • M55WO: 40 mV Pa @ 1k
  • M55WS: 60 mV Pa @ 1k
• Equivalent Noise Level22 dB (A-weighted)
• Signal to Noise Ratio72 dB
• Max SPL≥130 dB
• Dynamic Range108 dB
• Power Requirements18 - 52 V phantom
• Connectorterminal block connector
• Constructionaluminum and zinc alloy with white finish
• Microphone Length2.1"