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???
04/30/10 12:51
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 		 #175545 - Not meaningful to guess - we will just produce random noise
Responding to: ???'s previous message
Ap Charles said:
Andy Neil said:
There really isn't much point in guessing without knowing the details of the parts you intend to use, and what you're actually trying to achieve with them!

See: http://www.8052.com/forumchat/read/175517



http://www.8052.com/forumchat/read/175538

related to pink noise . Think where pink noise is used .

It is irrelevant.

We can't really guess what the relations may be.

You are talking about 600W and piezo, which makes it obvious that it is not a generic loudspeaker.

And even if it had been a generic loudspeaker, we can't guess what the manufacturer may have made for design decisions. You don't just select elements based on power rating. You also think about frequency range, sensitivity, suitability for the case etc to get an overall balance in the design.

It's time for you to speak specifics. What are you building. And where are datasheets for the amp and the piezo unit?

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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