No wonder - the 6AS7G is most likely to hum - as said before. As for the Amperex - these are fine - but I guess best paired with a 7236. However I would suggest to go for a 5998 and pair it with a more firm sounding tube unlike the Amperex (I had Bugle Boys in the shootout and they would do just too much if paired with a 5998). This will give you a balance between sound definition and airyness. Pls just have a look at the extensive evaluation I made earlier in this thread - you would not regret it - if you do pls do not hesitate to complain to me. I wish you get a phantastic sound out of your WA3.
Edited by MooBin - 10/7/10 at 10:23am