Since buying my Kemper last year, I've been trying to find a set of really killer modded Marshall profiles. I've bought a bunch of different profiles - and found a few I liked - but ultimately wasn't quite what I wanted. Well, I finally found what I was looking for today...
Liam Thompson just posted a collection of profiles on the Rig Exchange of his extremely cool hot-rodded Marshall 2203. OMG! I am blown away at how good these are. IMO, these are as good as it gets for this type of amp. I highly recommend them! Check out his post detailing this amp:
Free Modded Marshall JMP 2203 Profiles (Friedman/Cameron/Jose) on Rig Exchange