Yes indeed. I hate Budweiser. But put in some PBR or a nice British brew (Newcastle comes to mind) and the "tone" improves considerably.THIS is the worst Marshall...
Bad Marshalls?? Very few IME. The 9001 preamp has some lame sounds in it, and its speaker emulated out is one of the worst waste of electronics in history. I also had a bad experience with a MG 100W head through an Orange cab with Vintage 30's wired to 4 ohms. It was BAD, like a flock of gnats with chainsaws flew into your ears and attacked your eardrums.
Most every other one has been very nice to great, but you have to run them all as loud as possible. Some Marshalls sound very bad at extremely low volumes, but crank the same amp and it sings sweetly.