Yep, and they also work in Brussels and Thailand, among other places
As long as the blades of the plug fit, but you've got that covered with your plug adaptors. The cord separates into two parts as you know, one is the PSU part that deals with the electricity and the other just attaches to that and has a plug. The plug part is switchable and I just happened to get a European-style plug-blades (the cylindrical prongs kind) by mistake on my US Octatrack. I got a US-style plug and I was good to go. The PSU part is worldwide compatible.