POLAR
PATTERN
MB-4E
he Crown®
such as teleconferencing, distance learning, boardrooms, courtrooms, and TV or theatrical applications.
Thanks to its supercardioid pickup pattern, the
MINI-BOUNDARY™
MICROPHONE
Features | • | |
• | Ideal for teleconferencing, distance | feedback, room acoustics and background |
| learning, boardrooms and courtrooms | noise |
• | Has a | • Clear, natural sound |
|
mic electronics
• Small and inconspicuous
The
The MB-4E is the same, but without the elec- tronics/connector.
The
•Powers and equalizes up to four mics.
•Provides programmable switching to turn the mic on or off if desired (switches not provided).
•The
•Pluggable microphone inputs.
•Provides balanced outputs from the inter- face.
Features
•Tiny, inconspicuous.
•Can be used without putting holes in the table.
•Clean, clear, natural sound.
•
•LED indicates mic on
•LED in
•Switches can be internally programmed for
•Remote sensing of switch closure (in MB- 200 interface).
•Removable grille assembly can be painted.
How to Paint the Microphone
1.Using a small screwdriver, pry open one side of the grille, then the other side (Fig. 5).
2.Remove foam liner.
3.Wearing a dust mask,
4.Allow paint to completely dry.
5.Make sure the LED is properly aligned.
6.Carefully place the grille assembly over the LED, and snap in place.
Specifications
Type: Phase Coherent Cardioid.
Element: Electret condenser.
Frequency response (typical): 50 Hz to 15,000 Hz at 30 degrees incidence to surface (see Fig. 1).
Polar pattern:
Impedance: 150 ohms, balanced (recommended load impedance 1000 ohms or greater).
Power sensitivity:
Equivalent noise level
S/N ratio: 72 dB at 94 dB SPL.
Maximum SPL: 120 dB SPL at 3% THD.
Polarity
Polarity
Operating voltage
Operating voltage
at interface output.
Current drain
Current drain
Connector
Connector
Cable: Permanently attached, black,
Materials:
Finish: Satin black.
Net weight: Microphone: 0.7 ounces (19.8 grams). Power module: 2.8 ounces (78.6 grams).
Dimensions: See Fig. 4.
Included accessories:
Optional accessories
Required accessory
*1 pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL.
Fig. 1
Frequency Response
+15 |
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+10 |
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+5 |
| 0˚ |
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dB 0 |
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| 130˚ |
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100 | 1K | 10K | |
20 |
Frequency in Hz
Fig. 2
60˚ | 90˚ | 120˚ | |
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| 1 kHz |
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| 200 Hz |
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| 5 kHz |
30˚ |
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| 150˚ |
FRONT |
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| REAR |
0˚ | 180˚ | ||
+5 |
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