I have a MArshall JTM 30 than I amcurrently getting worked on and modded. For a tube amp at 30 watts the JTM30 is on the quieter side. Its really like a cross between a Fender and a MArshall, has a more fender clean, but when you push the tubes its more of a bluesbreaker marshall (i really only use the clean side and roll the volume back to clean it up a little)
I am looking at possibly swapping the speaker out, when I got it second hand it has a celestion vintage 30, and I am looknig for something a little warmer with a more classic breakup. I play rock and blues, very much in the british style, think John Mayall and the Bluesbreakers, early Fleetwood Mac, Cream... stuff along those lines
Im thinking ET65?