Overhead Microphones

Model ANS501

Ambient Noise Sensor w/ Power Supply and Microphone

The Bogen Ambient Noise Sensor system is designed to monitor continuously changing ambient noise levels and electronically adjust the level of a page announcement and/or background music so intelligibility is maintained. The system consists of the control module (Model ANS501), a microphone module (ANS500M), and a power supply.

The system ensures that page announcements and music are audible even during periods of high noise levels by continuously monitoring the ambient noise level through a microphone module located in the subject area and adjusting the paging signal level into the system's amplifier.

Features:

Consists of an ANS501 control unit, an ANS500M microphone module, and a power supply
Balanced input and output
Unbalanced input and output
Unbalanced stereo AUX inputs (summed mono)
AUX inputs bypass gain control feature
Remote defeat connections (to disable level boost)
Automatically adjusts level of page announcements
Run/Set mode switch
ANS501 can be wired in between preamp and power amp or to amplifier insert jacks
Maximum boost; activity threshold; relative gain;
AUX input level; ramp speed; and ambient MIC input threshold controls
Supports up to four microphones wired in parallel
Microphone wire run can be up to 2,000 feet with no appreciable loss of signal
Microphone module includes an adjustable mounting bracket for precise positioning
Powered by a 12V wall-mounted power supply that operates from 120V AC

Part #	Description	List Price	Box Qty.	Lashen's Price	6 or More	Ship Weight
ANS501	AMBIENT NOISE SENSOR	$ 471.02 each	1	$ 214.10 each	$ 205.54 each	3 lbs

Technical Specifications

Gain (Boost):	0 dB to 22 dB (± 1 dB)
Frequency Response:	5 Hz to 80 kHz (+0 / -3 dB)
S/N (20 Hz - 20 kHz):	-96 dBV
Distortion:	<0.007%
Input Impedance:	Aux Input: Unbalanced 10 k-ohms Unbalanced Input: 20 k-ohms Balanced Input: 20 k-ohms
Output Impedance:	Unbalanced Output: 300 ohms Balanced Output: 600 ohms
Gain Ramp Speed:	1 dB/s to 20 dB/s
Power:	12V AC/0.4A
Controls:	Maximum Boost, Ramp Speed, Activity Threshold, Ambient Threshold, Aux Level, & Relative Gain
Connector:	RCA & pluggable screw terminals
Product Weight:	12 oz. (ANS501); 4 oz. (ANS500M)
Dimensions:	51/4" W x 3" H x 11/4" D (ANS501); 2" W x 21/8" H x 7/8" D (ANS500M)
Indicators:	Bi-Color Status (Amber/Green); Power (Green)