I haven't heard one. But if they are priced as high as the ones you mentioned, I would stick with one of those just for resale alone. You know you will get your money out of a used Diezel et al and probably not out of the Dynamo if you choose to resell it.
Anyone else have anything to say about Dynamo? I was really disappointed that they didn't end up coming to the NY amp show this year. Thought I'd finally be able to try them