“Audiophile switches” and Allo products

[allo.com]

Hi

 

  we are interested in science. However I know that SQ is not fully captured on THD+N (we know this since 1950 at least)

 

  I believe that correlation between sound quality and measurements will be established at some point , not yet

 

   I got multiple reports that audiophile SW improve the SQ but right now there seem not to have any correlations to measurements .

 

Who is right ? We will test in future using blind panels and trust those results .