It may be too soon, but I may want to second Detlof's suggestion of The ASL Hurricanes. I have them now and I am still burning in the tubes. I also did some rolling on the 6SN7's from the stock version to NOS Sylvania's. As of now, and with 50-60 hours....I say this amp is starting to really sing. I hope to do a review in a few weeks......
