Hey, Lets get back to the subject here! I know I wax poetic all over the place but........... I got the Ad30VT today.......Hey Hey Hey Stopped at the market on the way home for some listening fuel and plugged it in. A little cheesy for first earsies....diddle with the knobbie thingies...Wow cheapest chicken knobs in the world....Good thing I have nice bakelite ones to go on there. BUT you can get some grind outta this...Hmmmmmm Go manual and try the power thingie on the back and then the gain and volume....errr getting confused here. Read manual for 2 secs and realize what's going on....No more confusing than tracking rhythm method...LOL Has a bit o' muddy bottom and a slight snap....Fudge...been playing the Flying V...no wonder... Quick change to the SG....57' classics are much darker on this amp. but muddy bottom.....what to do? Surgery....The DR is going in...Gotta see what's up. Nice speaker, all wires look good, cabinet intact and the layout is cool.....AHA......found it! Why do amp Mfg's use the 12AX7EH as the primary tube or only tube is beyond me.... Soldano uses 12AX7EH's but not the critical one for sound shaping......Check the stash for alternates.......Hmmmmm too many choices here....1950's Sylvania, GE and RCA 12AX7 tubes.......eenie meenie miney mo, I remember the RCA had the sweetest mid and bottom of the bunch last time I tried in the Marshall big box...... Replaced the tube, put it back together and WOWEE it is a different amp! Smooth harmonics, smooth bottom end and musically pleasing. Price check at thetubestore.com is $55.00 each for the RCA NOS premium ones, whatever that is? Next I will start the task of amp/effect to see what the amp modeling is capable of as compared to my PodXT. So the first task is to get a better 12AX7 tube into the AD30VT's guys...... Big difference!