Having both in my possession I was able to play side by side one after another. The difference in sound is very very small, but it is just there. I actually think the 06' concert sounds more resonate/sweeter(but that could just be because it has fully opened up over the years whereas the Sceptre was just made), and the Sceptre tends to be just barely louder/brighter. But again, these differences are very small, if you are buying strictly for the shape of the body get the Sceptre