Technical data
Foreword 
Series SPB Audio Boosters Manual, Revision A 
1-2 
Certain information contained in this manual has been extracted from the NFPA 72 Manual and 
the Life Safety Code 101™ Manual. 
WARNINGS 
  WARNING:  A  Warning  indicates  a  potentially  hazardous 
situation that, if not avoided, could result in serious personal injury or 
death to you or others. Warnings are set off in boldface type, within 
boxed rules, indented, and referenced to a warning symbol. 
CAUTIONS 
CAUTIONS: indicate a situation in which the equipment could be damaged or a 
situation in which not following the instructions correctly could result in the 
equipment not working properly. Cautions are set off with a stop sign symbol. 










