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???
04/28/10 09:42
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 		 #175480 - Audio amplifier
Hi,

The standard audio amplifier(eg PA systems) spec provide test results at 1Khz . If the spec says a bridge power of 2000Watts @ 4ohm (peak ) .Will it be able drive a piezo (600watt rms @ 8ohm) at 15-16Khz frequency range? (sine wave) ,I can see piezo being sensitive elements and prone to destruction .


-Ap



List of 33 messages in thread
TopicAuthorDate
Audio amplifier            01/01/70 00:00      
   Probably            01/01/70 00:00      
   kHz            01/01/70 00:00      
      Probably too small amp            01/01/70 00:00      
   Usually not...            01/01/70 00:00      
      specs            01/01/70 00:00      
         Real PA Manufacturers...            01/01/70 00:00      
            rms power ...            01/01/70 00:00      
               "Continuous sine wave power" rated in "RMS Watts"...            01/01/70 00:00      
               Oh yes there is            01/01/70 00:00      
            So hold on then            01/01/70 00:00      
               Exactly!            01/01/70 00:00      
                  Stay away from anything with PMPO rating            01/01/70 00:00      
                     Numbers...            01/01/70 00:00      
         Standards            01/01/70 00:00      
   What's it for?            01/01/70 00:00      
      WOW            01/01/70 00:00      
         transucers            01/01/70 00:00      
            Example Ideas...            01/01/70 00:00      
         Piezos are capacitive            01/01/70 00:00      
            Derating            01/01/70 00:00      
               You still haven't said what it's for!            01/01/70 00:00      
                  The question is            01/01/70 00:00      
                     Not meaningful to guess - we will just produce random noise            01/01/70 00:00      
                        Take any            01/01/70 00:00      
                           600W, how to calculate?            01/01/70 00:00      
                              600W            01/01/70 00:00      
                           But why do you think that it is relevant?            01/01/70 00:00      
                              relevant?            01/01/70 00:00      
                                 High power at high frequencies definitely dangerous.            01/01/70 00:00      
                                    Like or dislike isnt a point            01/01/70 00:00      
                                       rms should be the same, but you can bend the truth a bit            01/01/70 00:00      
                                       Compression driver is what you need...            01/01/70 00:00      

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