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  Transistor integral amplifier Musatoff PA-20  
     

 
 

Measurements on the 8 Ohm load

 
  Frequency sweep from 5 Hz to 40 kHz at 15 W. Spectrogram dynamic range - 120 db


 
  Frequency sweep from 5 Hz to 40 kHz at 30 W. Spectrogram dynamic range - 120 db


 
  Frequency sweep from 5 Hz to 40 kHz at 60 W. Spectrogram dynamic range - 120 db


 
Frequency sweep from 5 Hz to 40 kHz at 75 W. Spectrogram dynamic range - 120 db


  Frequency sweep from 5 Hz to 40 kHz at 94 W. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 10 Hz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 100 Hz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 1 kHz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 10 kHz up to clipping. Spectrogram dynamic range - 120 db

 
     
 

Measurements on the 4 Ohm load

 
  Frequency sweep from 5 Hz to 40 kHz at 30 W. Spectrogram dynamic range - 120 db


 
  Frequency sweep from 5 Hz to 40 kHz at 60 W. Spectrogram dynamic range - 120 db


 
  Frequency sweep from 5 Hz to 40 kHz at 120 W. Spectrogram dynamic range - 120 db


 
Frequency sweep from 5 Hz to 40 kHz at 136 W. Spectrogram dynamic range - 120 db


  Frequency sweep from 5 Hz to 40 kHz at 150 W. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 10 Hz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 100 Hz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 1 kHz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep on 20 db at frequency 10 kHz up to clipping. Spectrogram dynamic range - 120 db


 
  Amplitude sweep of complex 10 tones signal. X axis if rms power. To compute this rms power on rms power of single freqency, power value on 10.
 
 
     
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