I know this is all subjective but it's not even close to my EARS... The RI's are just waaaay harsh in top end compared to the originals to my ears and lack somthing ballsy over all.
I played a 100% stock 1983 2203 w/ 6550's at my studio the other night and the RI 2203x could never sound as good as that amp IMO.
I seriously shat myself in 4 shades of brown when I slammed that bad boy with a OD-9 and EMG's... I could not stop playing... It was pure heaven man...
I have owned a brand new RI and three of the Zakk Wylde 2203's RI's in the past and I also play them all the time at GC, Scam Cash, MAE, etc and I personally think the RI's do not even come close at all to the smooth sound and ballsey crunchy bark of the originals. But hey thats me...
G.