Step down transformers detrimental to SQ?


Hello, does anyone know if step down (or up) transformers have adverse effects on sound quality? I'm looking to pickup a 100V amp and use a step down here in US. 

Thanks
mrkoven

Showing 1 response by ericsch

 @erik_squires 
  Excel Audio has 505's for $2,600

I ordered one last week, arriving today.