Bogen Speaker System AT10A User Manual

Attenuators For 25V/70V Speaker Line  
Models AT10A and AT35A  
Installation and Use Manual  
Speaker Installation  
These 10-step plus “off” speaker attenuators allow the volume of a network of 25V or 70V speakers to be controlled from  
a remote location. The AT10A attenuator can handle speaker loads of up to 10W (max.) and the AT35A attenuator can  
handle speaker loads of up to 35W (max.). The AT10A fits into a single gang electrical box and the AT35A into a double  
gang electrical box. Volume reduction takes place in 3 dB increments except for the 2 lowest settings, which provide 6 dB  
reduction increments. A speaker “off” (“0”) position is also provided.  
Attenuator Wiring  
Note: Cable shield is not  
connected to the speaker -  
the shield simply “floats.”  
Cable Shields  
Wire Nuts (4)  
COM  
Speaker “-”  
(negative) lead  
Cable from amp or zone output  
Cable to speakers  
Speaker “+”  
positive lead  
Hot Lead  
Red  
Green  
Black  
Attenuator  
Attenuator Settings  
STEP  
ATTENUATION  
0 dB (Full Volume)  
-3 dB  
10  
9
8
7
6
5
4
3
2
1
0
-6 dB  
-9 dB  
-12 dB  
-15 dB  
-18 dB  
-21 dB  
-27 dB  
© 2005 Bogen Communications, Inc.  
All rights reserved.  
Specifications subject to change without notice.  
54-2126-01A 0501  
-33 dB  
Speaker Off  
 

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