Sorry for the delay in responding but I missed your post.
No, I have no idea but I expect it would be easy enough to figure out by looking at the configurations. The SDEC units have custom faceplate graphics and internal programming, but they are stock BSS hardware. The SDECs are more expensive because of the JBL Synthesis programming. I suppose if they sold millions of these things the programming would be free... but at the numbers these things sell, that isn't tenable.
I was just at a friend's house who just received a pair of M2s. I have to say that while they look very professional and purposeful, I don't think I would want a pair in my living room. He had them sitting next to his Everests and they loomed over them and rather dwarfed the already ridiculously large E2s.
I'll go back and give them a serious listen when they have been set up, but on the first visual pass... not so sure.
Widget