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BPI 7000 Audio Analyzer  
         
  Siemens Klangfilm RIAA BPI-7000 Eurody rack design style Phono preamp  

  The BPI 7000 measures distortion and output power (with external load resistance) and wow and flutter (weighted/ unweighted). It has a built-in sine wave generator.

  I bought this unit on the American ebay site for $19.95.

 
         
  Siemens Klangfilm RIAA BPI-7000 Eurody rack design style Phono preamp  

  I was pretty surprised about its precision:

- frequency shift is smaller than 0.5%

- the THD of the sine wave generator is

  lower than 0.008% - in some ranges even

  smaller than 0.004% (externally measured)

- the distortion measurings give the same

  results as my almost calibrated HP 8903

 

  This way I decided to let it receive some modification.

 

 

 
         
  Siemens Klangfilm RIAA BPI-7000 Eurody rack design style Phono preamp  

 

 
         
   

 
         
   

 
         
 

 

 

 

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