I have tried a few of the combos at the local GC. They seem well made, I think they have plywood cabs, they sure don't feel like partical board. Plenty of power, simple controls (I love that). The only negative I have is that they are to clean for me. I had a ROAD solid state amp that I could drive the snot out of with the channel/master volume controls, sounded killer. The only SS amp I ever liked. I bet these would sound great with a bass POD. I have been thinking of buying one for rehersal, the Sound City is always in need of something.