I have found you to be quite honest and trustworthy about your pro experiences. I'll use your comment as a "base line". Thank you for getting my point. I have not played a Katana. I have gigged for several years with the following "declasse" amps: 80's SS Yamaha G100-III head w/ JBL speakers Fender Mustang I V.2 Fender Super Champ XD w/my 70's JBL speaker Peavey VyPyr VIP-II - a 200 dollar amazing modeling amp. works well for bass too, unless you need a SVT. I make my own setting on all amps and pedals that have factory settings. Sometimes the presets are almost OK - most often I have to strip off the bedroom FX and start from scratch. But that's what works! make them your own. The Fender and Peavey models are really good- versatile and reasonable pirces. Period. But they do not work off the rack - you need to make them your own. I bet your teacher, the prof, could make anything sound good. OK, I admit I'm a big Fender amp fanboi. BIG Fender amp fanboi. My favorite amp sound was my Showman rig. I also cannot use a Showman at the volume I need to play at these days. BUT Marshall was based on Fender amp designs. Of course it came out as a different sound because of UK components, cranking amps, etc. etc. So Marshalls became the sound of OD rock amps. It's not that Marshalls cannot do cleans well. It's just that most Marshall players have not featured that tone - instead we have the iconic overdriven "Marshall sound" since Jimi and Clapton in the 60's, and Pagey and everyone else since. ( and Jimi did turn down and get clean tones...another thread) Yeah, I have never owned a Marshall amp. But I bet I could tame it and maybe even get a decent jazz tone. Heck, Keef says give him 15 minutes with any amp and he can get a sound he likes. I can come close. thank you for getting THAT point. I frankly no longer care what an amp is made from. The real question is - Can I make it work for me? Cool! And we must be honest - so many SS amps were not designed to sound good, but be very cheap. It's only when you have played a high-quality SS amp that you sort of get it. I would challenge anyone to try my 80's vintage Yamaha G100-III head with a speaker of your choice and see how close a really well designed (as in Paul Rivera for Yamaha) amp can come to sounding like a tube Fender amp. Warm, too! I read an article were a band was on tour...the bandstand was so hot the tube Marshall amps were fritzing....and the SS Marshall amps as a standby worked fine.