My first Marshall was a MG100HDFX on top of the MG412 cabinet.
Since I didn't like the tone I sold it half a year later and got a JCM800 2203 from '83 together with a 1960A cabinet.
Half a year later I added a 2205 from '88.
And just yesterday I received my JCM800 4010 1x12 combo from '88
My first Marshall is a 1959slp reissue with the effects loop.. I think its an 2002 but im not sure. Anyway love this amp just wish I had the 1960ax cab to match it. My second Marshall is a Class 5 Head, this little fella is simply amazing \m/
My first Marshall was a MG100DFX 1x12... actually not that bad if you not have the money for a real tube Marshall and need something that can keep up with the drums. Although I would recommend beginners to buy a AVT theese days...
First Marshall I ever owned was the JTM 45/100 I bought last year. Only owned Fender amps before that and I don't think I am going back to them anytime soon after playing through a Marshall. Loved the way the amp sounded maybe got carried away in my obsession to own it. The bad thing is that I had to sell a bunch of gear in order to buy it. I was in a Strat stage at the time and thought it was worth selling my LP's and really regret it now because I would love to hear them played through this amp. Oh well it opened the door to my love of Marshall amps.
My first Marshall was a brand new 15 watt silver jubilee "micro stack" way back in the day when I was 14...I foolishly sold it to help pay for a car in the early 90's and I wish I had it back.