My question is , how do you tell the difference between a mkII b , c , c+. I found a Boggie that the seller claims is a mkII , but it has no markings that indicate which mkII . It is a 60 watt , no sim/class , no eq . I know nearly nothing boogie , and I don't feel like searching the net to get my answer . This is the only gear board that I'm registered on , so I hope someone can help. Thanks.