New amp build,, Differance between jtm50 N jtm45????

[joepete]

Hello, I just finished my Metro amp 100watt Plexi build and I couldnt be happier with the tone!! It is awesome and the tone is much better to that of my Original 76 Marshall 50watt plexi. The metro is more full sounding with a cool grind crunch tone when cranked up where as the 76 Marshall breaks up nicely at fairly low volume but tends to be way to bright and shrill sounding. Anyhow, I am looking to start my 3rd build which will be either the Metro jtm 45 clone or the Ceriatone jtm 50 clone kit. I was wondering what the differances in spec are for these models? Are they identical amps with just different power tubes installed? Or are there other differances in parts makeup and tone? How would the tone and performance differ from the two models and has anyone built either of the two I mention here above? Thanks