Voila, I have the 6EW6 in for burn-in for a work day, first 15-minute impressions are that it is "interesting", and different from all the other tubes. Definitely a bit more powerful on the HE-500 with more bass slam, and a tad more volume than the CV4014, and quite more than the 6676 and 8136.
Sylvania 6EW6 arrived, stuck in, burned in for just 1 hour, aaaaannnd... Nice! As you say more bass slam. Generally, these sound nicely warm but still balanced. Let's see how they develop. And there is the tube rolling fever back ;).
My volume dial went back quite a bit. These seem to kick the HE-500 quite nicely. With a gain of 10 I listen now at 9 to 9.30, tempted to reduce the gain to 5. These sound very promising already. Absolutely no regret there.
After the first impression, it sounds like what we were hoping for Audiofanboy ;)
Edited by Acapella11 - 3/6/13 at 12:08pm