M55 Series
Adjustable 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.
Designed, machined, assembled, and tested by Audix in the USA.
Note: The M55 Series has several model options including Dante | AES67 solutions. Please see below.
| Transducer Type | Condenser |
|---|---|
| Frequency Response | 60 Hz – 10 kHz |
| Polar Pattern | Cardioid / Hypercardioid / Omni/ Shotgun |
| Output Impedance | 150 ohms |
| Sensitivity | 38 mV (C), 32 mV (HC), 40mV (O), 60 mV (S) / Pa @ 1k |
| Equivalent Noise Level | 22 dB (A-weighted) |
| Signal to Noise Ratio | 72 dB |
| Maximum SPL | ≥130 dB |
| Dynamic Range | 108 dB |
| Power Requirements | 18 – 52 V phantom |
| Connector | Terminal Block Connector |
| Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector |
| Materials / Finish | Aluminum & Zinc Alloy / White Finish |
| Weight | 70 g / 2.4 oz (Mic & Cable) 499 g / 17.6 oz (Junction Box & Safety Cable) |
| Length | 54 mm / 2.1 in |
1x M55 Ceiling Microphone
1x CONN170F Terminal Block Connector, 4-ft Integrated Microphone Cable
1x CONN170M Mating Terminal Connector
1x JBM55 Metal Plenum Junction Box
- M55W – Hanging ceiling cardioid microphone with adjustable cable, strain relief, high output, RF immunity. White. Requires 18 – 52 V phantom power.
- M55WHC – As above, with a hypercardioid capsule. White.
- M55WO – As above, with an omnidirectional capsule. White.
- M55WS – As above, with a shotgun capsule. White.
