Yes, those are AvantGards......... and very expensive too....... they actually have duos and full range offerings too and you can specify the color you want........ when I first saw them a few years ago, I ordered their catalogue........and was hoping that some day I'll give myself a nice bonus.LOL
I thought that might be the case but when it was not part of the Trio, I thought perhaps not. So I went back to the web site and saw the Basshorn. The stack of 6 bass modules is certainly visually awe striking. The price tag on this stuff must also be breathtaking!