I have put the 077 at the bottom of the horn after listening to it mounted at both top and bottom,the 077 sounded better there,than I started wondering what it would sound like if I mounted 2 077's,one on top and one on the bottom,it sounded very clear,but than I got out the 075's and mounted the 077 on top and the 075 on the bottom and the sound to me was
amazing,I could walk around the room and it all sounded great,I'm still working on the mounting plates that will go on the top of the horns,but I did take a picture ,and will up date when I get it finished, Giskard to answer your question,yes I have all of the drivers already