Differences in tube sounds: 6550 / EL34

I would like opinions on amps that use these two types of tubes. In general, what charateristics do these tubes possess?

gretsch612011-08-2005 12:35am

ncarv Details Discussions Posts This discussion Message User 983 posts 11-08-2005 at 04:19am Copy Comment URL Report Comment Edit Delete EL34's have a terrific midrange. They are very smooth and pleasing. 6550's have much greater dynamics and better control. It's easy to get seduced by the EL34's, because they are so sweet sounding, but, overall, I prefer the 6550's for the dynamic range and overal tonal balance.
avguygeorge Details Discussions Posts This discussion Message User 2,300 posts 11-08-2005 at 03:01pm Copy Comment URL Report Comment Edit Delete It depends on the application; In some applications 6550's are similar to SS amps-- Audio Research,for example.--AND of course 'what el34' matters,2.
gretsch6120 OP Details Discussions Posts This discussion Message User 47 posts 11-08-2005 at 03:24pm Copy Comment URL Report Comment Edit Delete I am considering two different integrated amps, one uses 6550, the other uses EL34. I am leaning toward the EL84 driven amp. What EL34 tubes do you suggest?
eldragon Details Discussions Posts This discussion Message User 707 posts 11-08-2005 at 04:00am Copy Comment URL Report Comment Edit Delete EL34 supposed to have more "lush" sound. 6550 are said to have better bass control. When i owned the tube gear I prefered the Ei Kt-90's over either Kt-88, 6550 or El34. Mostly out of reliability issues. Some amps built exlusively around El34 tubes could sound wonderful. Like the older CJ amps.