Tag says they're no good. This is all you need to know.Got to play through a Carol Ann DG50 yesterday. The one and only D-style amp I've ever plugged into. I was impressed. Very nice indeed. Great cleans, smooth, soft OD, nice smooth transition from clean to OD, great versatility, superb craftsmanship. What's not to like? This from an old school, tweed loving, bluesy jazz and jazzy blues guy. I've noticed some D-style amps are just starting to creep into the "armamentarium" of blues players. I welcome them. Great tone is great tone, no matter the maker.
They sound mighty fine to me.