|  | 
 Comparison to the original
 
 To get an idea of how close the clones are to the original, we did some comparisons.
  
 A real OB-X rev.2 No.800519 was used for this. The synth was recorded over an Apogee 
 Rosetta converter directly to daw.
  
 Voice differences    show
  
 Stepping through the six voices which differ slightly in sound:
 
 
 
 SEM Filter    show
  
 The emulation of the famous SEM-Filter:
 
 
 
   
   | original 
    
      |  | opxvst 
    
      |  
 Portamento detune
  
 The portamento times of an average original are slightly different in each voice:
 
 
 |  | 
  
  
   |  |  
    | 
  
   |  |   |  |   |  |   |   
   |  |  
   | strings
    |   |  | strings
    |   |  | strings
    |   |  
   | sweep
    |   |  | sweep
    |   |  | sweep
    |   |  
   | brass
    |   |  | brass
    |   |  | brass
    |   |  
   | solo
    |   |  | solo
    |   |  | solo
    |   |  
   | syncsolo
    |   |  | syncsolo
    |   |  | syncsolo
    |   |  
   | filtersweep
    |   |  | filtersweep
    |   |  | filtersweep
    |   |  
   | portamento
    |   |  | portamento
    |   |  | portamento
    |   |  
   | pulsemod
    |   |  | pulsemod
    |   |  | pulsemod
    |   |  |   
   |  |  
    |  |  |