high-end audio

I am thinking about buying a Luxman 505 or 507, or Accuphase E-280 directly from an eBay seller in Japan. There is a substantial savings. Can anyone share experiences about buying audio equipment from Japan? Also, which step-down converter would you recommend? I don't want to add noise. If the...

Well, in a previous thread (three in all, this is 2nd) [ http://www.audiokarma.org/forums/index.php?threads/upgrade-from-separates-to-integrated-amp-long-post.788690/ ]I mentioned an Audiogon seller who I failed to come to terms with on a used No. 585. He called me an hour or two ago because...