Posted by Mali (A) on February 04, 2008 at 21:09:29

In Reply to: RE: PPP problems. posted by PaulMC on February 04, 2008 at 07:15:59

Paul, I had a Duet, ordered at the same time as the PPP in Denver. I used it briefly with the PPP, but sent it back, since imo, it didn't make much difference, in fact, I prefered the sound without it. But go figure, I am using an old Ultimate Outlet with the PPP, and, obviously, prefer it to the Duet. Tonight the input THD is still 5.0, but the output is fluctuating between 2.1 and 2.2. I wish could get a .4 output like the other guy.

• RE: PPP problems. - PaulMC 05:17:09 02/05/08 (3)
  In Reply to: RE: PPP problems. posted by Mali on February 04, 2008 at 21:09:29

  What is your input and output voltage?
  
  

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  • RE: PPP problems. - Mali 05:48:33 02/05/08 (2)
    In Reply to: RE: PPP problems. posted by PaulMC on February 05, 2008 at 05:17:09

    Input voltage 120/121, output 122/123. It's 6:30 A.M. and the input THD is a rock solid 5.0, but the output THD is 1.6-1.8. There is a marked difference in the quality of the sound at the 1.7 THD output range compared to when it's 2.3 or 2.5.
    
    

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    Edits: 02/05/08
    • RE: PPP problems. - PaulMC 07:59:51 02/05/08 (1)
      In Reply to: RE: PPP problems. posted by Mali on February 05, 2008 at 05:48:33

      You can probably change the output THD by adjusting the output voltage. If you're careful, there's a small set screw adjustment on the bottom of the PPP near the front panel. Adjust this with a small screwdriver from minimum distortion on the output, ignoring the resulting output voltage which is going to change somewhat.
      
      Call Barrows if you need help.
      
      

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      • RE: PPP problems. - Mali 15:56:38 02/06/08 (0)
        In Reply to: RE: PPP problems. posted by PaulMC on February 05, 2008 at 07:59:51

        Thanks, Paul. When I get the chance I'll call.
        
        

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