XPost: rec.audio.pro, comp.dsp   
   From: zekor@comcast.net   
      
   In article , "Arny Krueger"   
    wrote:   
   >"Mike Rivers"  wrote in message   
   >news:icduem$3i0$1@news.eternal-september.org   
   >   
   >> Someone will understand a 100W or 200W amplifier, but   
   >> won't think of one having 3 dB more (power) gain than the   
   >> other.   
   >   
   >That would be their loss. If you compare amp power in dBs, and remember that   
   >it takes about 10 dB to create the perception of "twice as loud", then a lot   
   >of things in the real world that may seem mysterious become understandable.   
      
   You got to consider that.   
   But, for understanding basics, knowing 6 dB is twice the voltage is what   
   people should know and use, and talk about. The only thing power   
   dB is good for is speaker dissapation and cost of amplifiers, and   
   indirectly, mains power. Forget volume levels.   
      
   greg   
      
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