Audio-Technica PRO 44 Dépliant

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propoint
®
 microphones
Cardioid Condenser Boundary Microphone
PRO 44
Features
•  Wide-range condenser element with low-mass diaphragm for
 superior performance
•  Uniform cardioid polar pattern for maximum rejection of
 unwanted sounds
•  Self-contained electronics eliminate need for external power
 module
•  Rugged design and construction for reliable performance
•  Low-profile design for minimum visibility
Description
The PRO 44 is a wide-range miniature condenser microphone with a 
cardioid polar pattern. It is designed for surface-mount applications such 
as high-quality sound reinforcement and other demanding sound pickup 
situations. 
The microphone requires 9V to 52V phantom power for operation. 
The microphone's cardioid polar pattern provides a 120° angle of 
acceptance (cardioid in hemisphere above mounting surface).
The microphone includes a 7.6 m (25') output cable terminating in TA3F-
type and XLRM-type connectors.
The microphone’s rubber non-slip bottom pad minimizes mechanical 
coupling of surface vibration to the microphone. The microphone is 
enclosed in a rugged housing with a black finish.
Installation and Operation
The PRO 44 requires 9V to 52V phantom power for operation. 
Output is low impedance (Lo-Z) balanced. The signal appears across Pins 
2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive 
acoustic pressure produces positive voltage at Pin 2.  
The microphone should be placed on a flat, 
unobstructed mounting surface, with the front 
of the microphone facing the sound source. 
The sound source should not be below, 
or higher than 60° above, the plane of the 
mounting surface.  
Avoid leaving the microphone in the open sun or in areas where 
temperatures exceed 110° F (43° C) for extended periods of time. 
Extremely high humidity should also be avoided.
Architect’s and Engineer’s Specifications
The microphone shall be a fixed-charge condenser designed for use in 
surface-mount applications.  It shall have a cardioid polar pattern with 
a uniform 120° angle of acceptance (cardioid in hemisphere above 
mounting surface) and a frequency response of 70 Hz to 16,000 Hz.   
The microphone shall operate from an external 9V to 52V DC phantom 
power source. It shall be capable of handling sound input levels up to 114 
dB with a dynamic range of 86 dB. Nominal open-circuit output voltage 
shall be 56.2 mV at 1V, 1 Pascal. Output shall be low impedance balanced 
(100 ohms). 
The microphone shall incorporate self-contained electronics, eliminating 
the need for an external power module.  The microphone shall have a  
7.6 m (25') output cable with TA3F-type to XLRM-type connectors.
The microphone shall have a maximum width of 73.0 mm (2.87"), a 
maximum length of 90.5 mm (3.56") and a maximum height of 15.5 mm 
(0.59"). Weight shall be 67 grams (2.4 oz).  Finish shall be low-reflectance 
black.
The Audio-Technica PRO 44 is specified.
60°
IDEAL
WORKING
ANGLE