From: jeroen@nospam.please   
      
   On 12/11/25 02:43, Don Y wrote:   
   > On 12/10/2025 4:20 PM, John R Walliker wrote:   
   >>>> I worked in a university where they had just one sounder for each   
   >>>> floor,   
   >>>> mounted at the end of a each corridor.  They had made it loud enough to   
   >>>> be heard in the laboratories with all the doors shut.  It would have   
   >>>> been safer to climb out of a window than enter the corridor and try to   
   >>>> escape past the sounder.   
   >>>   
   >>> You can get 200-300dB klaxon's relatively easily.  I had one in   
   >>> college that was "fun" (for some perverse definition of "fun")   
   >>> to play with.   
   >>   
   >> Are you sure about that?  200dB is a couple of atmospheres.  This   
   >> would probably be enough to demolish your house.   
   >> 300dB would be apocalyptic.   
   >   
   >    
   >   
   >    
   >   
   > It's amazing how the impedance matching of the horn contributes to   
   > overall loudness!   
   >   
   >    
   >   
   >   
      
   That's just nonsense from people who have no idea of what dBs stand for.   
      
   Jeroen Belleman   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)