tried one today, there was no combo but they had the head setup with a valveking 4x12 (I think) played it with some active emgs since my plan was to boost it with a tubescreamer anyway, it did some nice metal chugging with the gain on about 3 o clock, I tend to not over do the gain for metal though so it might need a big boost if you use silly amounts of gain
I'm rather impressed with it and plan to buy one, so does the dsl owner who was playing it before me