Actually if you read the instructions that come with the stands, there is a very specific warning NOT to let the stand have any lateral movement at all under load. Therefore, if someone were to sit on the amp/stand and move slightly at all, good chance you severely damage the stand. As I stated, they are not designed for that kind of weight or action. How do I know...LOL. Friends with broken carbon fiber skeletons, but hey...go ahead use them as a seat.