I switched out the 6L6GC's in my Mesa DC5 with Sovtek KT66's... Holy Moly!! These are very fat sounding power tubes. The tubes themselves are very large(they barely fit), but man, what impressive sounding tubes. The reviews at the tube store (go to:http://thetubestore.com/6l65881types.html)were dead on! I'll let you know how they last...But so far, I'm sold!
(Message edited by hollis on May 11, 2004)