- Description
Details
AKG MB4 Miniature Boundary Layer Supercardioid Polar Pattern MB Series Microphone
The AKG MB4 is a miniature boundary microphone for multi miking applications such as teleconferencing, distance learning, boardrooms, courtrooms, and TV or theatrical applications. Double-sided sticky tape is provided for attaching the unit under shelves, on walls, etc. Thanks to its supercardioid pickup pattern, the MB4 greatly reduces ambient noise and pickup of room reverberation. The result is a clearer sound. The MB4 has a 15-foot attached cable leading to an XLR-type output connector with built-in mic electronics. It is powered by 12-48V phantom power, and is low impedance balanced. The MB4E is the same, but without the electronics/connector.
Featuring an incredibly small size, the MB Series of mini-boundary™, super cardioid microphones from Crown® offer a wide range of features and flexibility. The miniature, low-profile designs virtually disappear when installed, yet provide the same great sound as our highly-acclaimed PCC® microphone series. Best of all, the MB Series provides substantial savings compared to traditional microphones. Designed with the help of leading audio consultants and contractors, the MB Series is a comprehensive system of microphones and electronics that's perfect for a wide range of applications. The MB System lets you mix and match microphones as needed for multiple configurations.
- Features
Features
- Ideal for teleconferencing, distance learning, boardrooms and courtrooms
- Has a 15-foot attached cable leading to an XLR-type output connector with built-in mic electronics
- Half-supercardioid polar pattern reduces feedback, room acoustics and background noise
- Clear, natural sound
- Small and inconspicuous
- Can be used without putting holes in the table
- Clean, clear, natural sound
- Low-Z balanced output prevents hum and high-frequency loss
- Switches can be internally programmed for touch-on/touch-off, momentary on, or momentary off
- Remote sensing of switch closure (in MB-200 interface)
- Removable grille assembly can be painted
- Specification
Element Electret condenser 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 (–33dB re 1 volt/Pa) Power Sensitivity –30.5 dB re 1 mW/Pa. EIA rating Equivalent Noise Level (self-noise) 22 dB SPL typica l (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 Polarity Positive (inward) pressure on the diaphragm produces positive voltage on pin 2 with respect to pin 3 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-type Materials High-impact molded plastic and steel mesh mic grille, steel power module Finish Satin black Included Accessories Double-sided tape for fastening under shelves, etc., for theatrical applications Operating Temperature Range –10° to +50° C, or +14° to +122° F Dimensions (H x L) 0.6" (15 mm) x 1.5" (38 mm) Weight (Microphone) 0.043 lbs (19.8 g) Weight (Power Module) 0.173 lbs (78.6 g) - Documents
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