AKG Acoustics Microphone C680BL User Manual

C 680BL  
Table Microphone  
Description  
The C 680 BL is a boundary layer condenser microphone  
with a cardioid pattern intended for table use, lecterns, and  
houses of worship. The transducer is internally shock  
mounted for immunity to impacts on the mounting surface.  
The microphone is provided with a roll of non-staining  
double-sided adhesive for positive mounting of the  
microphone to a table or other flat architectural detail.  
The microphone has a sensitivity of 23 mV/Pa and can  
directly drive many microphone input stages with limited gain  
reserve. The microphone is phantom powered over the range  
from 9 to 52 volts dc.  
Specifications  
Transducer Principle:  
Frequency Range:  
Polar Pattern:  
Condenser prepolarized  
6020,000 Hz  
Cardioid  
Features  
Sensitivity at 1,000 Hz: 23 mV/Pa (-32 dBV)  
30 mV/Pa (-30 dBV)  
• Small & inconspicuous  
• Shock mounted transducer  
• Unidirectional pickup  
• Repaintable  
Equivalent Noise Level: < 27 dB-A  
Sound Pressure Level for 1% THD: 115 dB  
S/N Ratio (A-weighted): > 67 dB  
Electr. Impedance:  
Load Impedance:  
Power Requirement:  
Connector:  
< 200 ohms  
> 2000 ohms  
952 volts phantom powering  
3-Pin XLR type  
Cable Length:  
Finish:  
3 m (10 ft.)  
Non-reflective black  
Size:  
3.8 x 2.6 x 0.8 in.  
(97 x 67 x 20 mm)  
Net/Shipping Weight:  
Included Accessories:  
3.5/10 oz. (100 g/284 g)  
Phantom power adapter,  
adhesive tape  
Optional Accessories:  
B 18 Battery power supply  
N 62 E AC Power supply  
 

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