• RE: Lundahl LL1545A, best dac connection - KevinC 09:10:46 10/18/15 (3)
  In Reply to: RE: Lundahl LL1545A, best dac connection posted by eirper@ath.forthnet.gr on October 18, 2015 at 00:30:29

  Very little DC offset is tolerated by this transformer. I think that mVs is too much.
  
  Kevin Carter
  K&K Audio
  www.kandkaudio.com
  
  

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  • RE: Lundahl LL1545A, best dac connection - eirper@ath.forthnet.gr 22:51:46 10/19/15 (2)
    In Reply to: RE: Lundahl LL1545A, best dac connection posted by KevinC on October 18, 2015 at 09:10:46

    The one dac channel output has <3.5mV and I don't measure any dc-offset at the lundahl output.
    
    Is there any way to see the limit in this case?
    For example, if the output of LL1545A remains 0mv, this is a sign that enough or created other problems?
    

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    • RE: Lundahl LL1545A, best dac connection - KevinC 05:29:58 10/20/15 (1)
      In Reply to: RE: Lundahl LL1545A, best dac connection posted by eirper@ath.forthnet.gr on October 19, 2015 at 22:51:46

      Since it's a transformer, it won't pass DC, so you won't measure any offset at the secondary connections. When the offset is too large, the core is saturated, and bass frequencies are essentially not passed by the transformer. Run a frequency response sweep or just listen. It will be obvious.
      
      Kevin Carter
      K&K Audio
      www.kandkaudio.com
      
      

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      • RE: Lundahl LL1545A, best dac connection - eirper@ath.forthnet.gr 14:09:59 10/20/15 (0)
        In Reply to: RE: Lundahl LL1545A, best dac connection posted by KevinC on October 20, 2015 at 05:29:58

        Thank you for the very nice explanation, Kevin.
        

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