Originally Posted by dan_can
I think WA6 SE sounds very good with 6EW7 clear top, better than 6DE7s including my 60's RCA 6DE7, RCA 6EW7, and GE 6EW7 fat bottle.
Are you referring to the Sylvania or Raytheon 6EW7 clear top, fat bottle tubes compared to your RCAs and GEs???
If so, they do seem to have greater resolution in the mids and highs, with slightly less bass emphasis. Very airy and open with lots of detail.