AKG MB3 Miniature Supercardioid Boundary Microphone

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AKG MB3 Miniature Supercardioid Boundary Microphone (Discontinued)

Description

Details

AKG High-Performance Flush-Mount Boundary Layer Microphone
for Theater, Conference & Lectern, Meeting Room and Security Applications

The AKG MB3 is a miniature boundary microphone for multi miking applications such as teleconferencing, distance learning, boardrooms, courtrooms, and security applications. This low profile, circular mic permanently installs into a hole drilled in a table, lectern or ceiling. Thanks to its supercardioid pickup pattern, the MB3 greatly reduces ambient noise and pickup of room reverberation. The result is a clearer, more intelligible sound. On the bottom of the mic is a tubular power module with a 3-pin XLR type output connector. It is powered by 12-48V phantom power and has a low-impedance balanced mic-level output.

Features

Features

Ideal for teleconferencing, distance learning, boardrooms, courtrooms and security
Small and inconspicuous
Installs permanently in a table top, wall or ceiling
Half-supercardioid polar pattern reduces pickup of background noise, room acoustics and feedback
On-surface mounting eliminates phase interference from table sound refl ections, giving a natural sound

Specification

Frequency Response (typical)	50 Hz to 15,000 Hz at 30 degrees incidence to surface
Polar Pattern	Half-supercardioid (supercardioid in the hemisphere above the primary boundary)
Impedance	150 ohms, balanced (recommended load impedance 1000 ohms or greater)
Open-circuit Sensitivity (typical)	22 mV/Pa (–33 dB re 1 volt/Pa)
Power Sensitivity	–30.5 dB re 1 mW/Pa. EIA rating –125 dBm
Equivalent Noise Level (self-noise)	22 dB SPL typical (0 dB=0.0002 dyne/cm2), A-weighted
S/N Ratio	72 dB at 94 dB SPL
Maximum SPL	120 dB SPL at 3% THD
Operating Voltage	Phantom power, 12-48 volts DC on pins 2 and 3 with respect to pin 1 of output connector
Current Drain	4 mA nominal
Connector	3-pin pro audio, XLR-M type
Cable	None supplied. Use two-conductor shielded mic cable
Materials	High-impact molded plastic and steel mesh mic grille, steel chassis
Operating Temperature Range	–10° to 50° C, or 14° to 122° F
Dimensions (Dia x L)	1" (25 mm) x 3.3" (84 mm)
Weight	0.17 lbs (0.077 kg)

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