On Sep 27, 11:24 pm, willismat wrote:
I've read that the only differences between the 6800W (White) and
6800WA (Orange) versions were tighter filters, though I don't know if
it's just the wide or both (better adjacent channel rejection but less
fidelity), and a better preselector. Are these the only differences?
Has anyone actually used both of them and can tell their own opinions
on performance differences? Thanks!

Here's an excellent review of both versions and further down the page
is a review of the 6700. It's in german so just run it through one of
the online translators. Also track down a copy of Ranier Lichte's
excellent book Receiver - Choice or Chance.

http://www.dr-boesch.ch/radio/sony-icf-6800.htm