regarding the tube rings - maybe i will make shorter ones, more similar to real rings, just for comparison and to learn something. as summary the tube rings correct one weakness at the cost of another weakness, so not that attractive, at least for this amp and the tube types used for it.
i by a far margin prefer tube rolling and finding the best tube combo for a specific sound, i have the feeling that tube rings here alwyas will be only a compromise.
my dream combo sounds better without tube rings (but i have to find another way to get this great bass quality enhancement, in this area the tube rings are doing a great job).
Edited by GermanGuy - 7/28/13 at 12:10pm